Business Examples

Common types of business activities within US SIC 3398 - Metal Heat Treating are:

US-SIC Hierarchy 3398 - Metal Heat Treating

US-SIC Code 3398 - Metal Heat Treating sits in the 2-digit Metal Heat Treating sector. US SIC codes can be 2 to 8 digits and the further along the hierarchy, the more detailed and specific the category will be.

Division: D

Division Title: Manufacturing

2 Digits 3 Digits 4 Digits

• 20 Food and Kindred Products
  • 201 Meat Products
    • 2011 Meat Packing Plants
    • 2013 Sausages and Other Prepared Meat Products
    • 2015 Poultry Slaughtering and Processing
  • 202 Dairy Products
    • 2021 Creamery Butter
    • 2022 Natural, Processed, and Imitation Cheese
    • 2023 Dry, Condensed, and Evaporated Dairy Products
    • 2024 Ice Cream and Frozen Desserts
    • 2026 Fluid Milk
  • 203 Canned, Frozen, and Preserved Fruits, Vegetables, and Food Specialties
    • 2032 Canned Specialties
    • 2033 Canned Fruits, Vegetables, Preserves, Jams, and Jellies
    • 2034 Dried and Dehydrated Fruits, Vegetables, and Soup Mixes
    • 2035 Pickled Fruits and Vegetables, Vegetable Sauces and Seasonings, and Salad Dressings
    • 2037 Frozen Fruits, Fruit Juices, and Vegetables
    • 2038 Frozen Specialties, Not Elsewhere Classified
  • 204 Grain Mill Products
    • 2041 Flour and Other Grain Mill Products
    • 2043 Cereal Breakfast Foods
    • 2044 Rice Milling
    • 2045 Prepared Flour Mixes and Doughs
    • 2046 Wet Corn Milling
    • 2047 Dog and Cat Food
    • 2048 Prepared Feed and Feed Ingredients for Animals and Fowls, Except Dogs and Cats
  • 205 Bakery Products
    • 2051 Bread and Other Bakery Products, Except Cookies and Crackers
    • 2052 Cookies and Crackers
    • 2053 Frozen Bakery Products, Except Bread
  • 206 Sugar and Confectionery Products
    • 2061 Cane Sugar, Except Refining
    • 2062 Cane Sugar Refining
    • 2063 Beet Sugar
    • 2064 Candy and Other Confectionery Products
    • 2066 Chocolate and Cocoa Products
    • 2067 Chewing Gum
    • 2068 Salted and Roasted Nuts and Seeds
  • 207 Fats and Oils
    • 2074 Cottonseed Oil Mills
    • 2075 Soybean Oil Mills
    • 2076 Vegetable Oil Mills, Except Corn, Cottonseed, and Soybean
    • 2077 Animal and Marine Fats and Oils
    • 2079 Shortening, Table Oils, Margarine, and Other Edible Fats and Oils, Not Elsewhere Classified
  • 208 Beverages
    • 2082 Malt Beverages
    • 2083 Malt
    • 2084 Wines, Brandy, and Brandy Spirits
    • 2085 Distilled and Blended Liquors
    • 2086 Bottled and Canned Soft Drinks and Carbonated Waters
    • 2087 Flavoring Extracts and Flavoring Syrups, Not Elsewhere Classified
  • 209 Miscellaneous Food Preparations and Kindred
    • 2091 Canned and Cured Fish and Seafoods
    • 2092 Prepared Fresh or Frozen Fish and Seafoods
    • 2095 Roasted Coffee
    • 2096 Potato Chips, Corn Chips, and Similar Snacks
    • 2097 Manufactured Ice
    • 2098 Macaroni, Spaghetti, Vermicelli, and Noodles
    • 2099 Food Preparations, Not Elsewhere Classified
• 21 Tobacco Products
  • 211 Cigarettes
    • 2111 Cigarettes
  • 212 Cigars
    • 2121 Cigars
  • 213 Chewing and Smoking Tobacco and Snuff
    • 2131 Chewing and Smoking Tobacco and Snuff
  • 214 Tobacco Stemming and Redrying
    • 2141 Tobacco Stemming and Redrying
• 22 Textile Mill Products
  • 221 Broadwoven Fabric Mills, Cotton
    • 2211 Broadwoven Fabric Mills, Cotton
  • 222 Broadwoven Fabric Mills, Manmade Fiber and Silk
    • 2221 Broadwoven Fabric Mills, Manmade Fiber and Silk
  • 223 Broadwoven Fabric Mills, Wool (including Dyeing and Finishing)
    • 2231 Broadwoven Fabric Mills, Wool (Including Dyeing and Finishing)
  • 224 Narrow Fabric and Other Smallwares Mills, Cotton, Wool, Silk, and Manmade Fiber
    • 2241 Narrow Fabric and Other Smallware Mills - Cotton, Wool, Silk, and Manmade Fiber
  • 225 Knitting Mills
    • 2251 Women's Full-Length and Knee-Length Hosiery, Except Socks
    • 2252 Hosiery, Not Elsewhere Classified
    • 2253 Knit Outerwear Mills
    • 2254 Knit Underwear and Nightwear Mills
    • 2257 Weft Knit Fabric Mills
    • 2258 Lace and Warp Knit Fabric Mills
    • 2259 Knitting Mills, Not Elsewhere Classified
  • 226 Dyeing and Finishing Textiles, Except Wool Fabrics
    • 2261 Finishers of Broadwoven Fabrics of Cotton
    • 2262 Finishers of Broadwoven Fabrics of Manmade Fiber and Silk
    • 2269 Finishers of Textiles, Not Elsewhere Classified
  • 227 Carpets and Rugs
    • 2273 Carpets and Rugs
  • 228 Yarn and Thread Mills
    • 2281 Yarn Spinning Mills
    • 2282 Yarn Texturizing, Throwing, Twisting, and Winding Mills
    • 2284 Thread Mills
  • 229 Miscellaneous Textile Goods
    • 2295 Coated Fabrics, Not Rubberized
    • 2296 Tire Cord and Fabrics
    • 2297 Non-Woven Fabrics
    • 2298 Cordage and Twine
    • 2299 Textile Goods, Not Elsewhere Classified
• 23 Apparel, Finished Products from Fabrics & Similar Materials
  • 231 Men's and Boys' Suits, Coats, and Overcoats
    • 2311 Men's and Boys' Suits, Coats, and Overcoats
  • 232 Men's and Boys' Furnishings, Work Clothing, and Allied Garments
    • 2321 Men's and Boys' Shirts, Except Work Shirts
    • 2322 Men's and Boys' Underwear and Nightwear
    • 2323 Men's and Boys' Neckwear
    • 2325 Men's and Boys' Separate Trousers and Slacks
    • 2326 Men's and Boys' Work Clothing
    • 2329 Men's and Boys' Clothing, Not Elsewhere Classified
  • 233 Women's, Misses', and Juniors' Outerwear
    • 2331 Women's, Misses', and Juniors' Blouses and Shirts
    • 2335 Women's, Misses', and Juniors' Dresses
    • 2337 Women's, Misses', and Juniors' Suits, Skirts, and Coats
    • 2339 Women's, Misses', and Juniors' Outerwear, Not Elsewhere Classified
  • 234 Women's, Misses', Children's, and Infants'
    • 2341 Women's, Misses', Children's, and Infants' Underwear and Nightwear
    • 2342 Brassieres, Girdles, and Allied Garments
  • 235 Hats, Caps, and Millinery
    • 2353 Hats, Caps, and Millinery
  • 236 Girls', Children's, and Infants' Outerwear
    • 2361 Girls', Children's, and Infants' Dresses, Blouses, and Shirts
    • 2369 Girls', Children's, and Infants' Outerwear, Not Elsewhere Classified
  • 237 Fur Goods
    • 2371 Fur Goods
  • 238 Miscellaneous Apparel and Accessories
    • 2381 Dress and Work Gloves, Except Knit and All-Leather
    • 2384 Robes and Dressing Gowns
    • 2385 Waterproof Outerwear
    • 2386 Leather and Sheep-Lined Clothing
    • 2387 Apparel Belts
    • 2389 Apparel and Accessories, Not Elsewhere Classified
  • 239 Miscellaneous Fabricated Textile Products
    • 2391 Curtains and Draperies
    • 2392 House Furnishing, Except Curtains and Draperies
    • 2393 Textile Bags
    • 2394 Canvas and Related Products
    • 2395 Pleating, Decorative and Novelty Stitching, and Tucking for the Trade
    • 2396 Automotive Trimmings, Apparel Findings, and Related Products
    • 2397 Schiffli Machine Embroideries
    • 2399 Fabricated Textile Products, Not Elsewhere Classified
• 24 Lumber and Wood Products, Except Furniture
  • 241 Logging
    • 2411 Logging
  • 242 Sawmills and Planing Mills
    • 2421 Sawmills and Planing Mills, General
    • 2426 Hardwood Dimension and Flooring Mills
    • 2429 Special Product Sawmills, Not Elsewhere Classified
  • 243 Millwork, Veneer, Plywood, and Structural Wood
    • 2431 Millwork
    • 2434 Wood Kitchen Cabinets
    • 2435 Hardwood Veneer and Plywood
    • 2436 Softwood Veneer and Plywood
    • 2439 Structural Wood Members, Not Elsewhere Classified
  • 244 Wood Containers
    • 2441 Nailed and Lock Corner Wood Boxes and Shook
    • 2448 Wood Pallets and Skids
    • 2449 Wood Containers, Not Elsewhere Classified
  • 245 Wood Buildings and Mobile Homes
    • 2451 Mobile Homes
    • 2452 Prefabricated Wood Buildings and Components
  • 249 Miscellaneous Wood Products
    • 2491 Wood Preserving
    • 2493 Reconstituted Wood Products
    • 2499 Wood Products, Not Elsewhere Classified
• 25 Furniture and Fixtures
  • 251 Household Furniture
    • 2511 Wood Household Furniture, Except Upholstered
    • 2512 Wood Household Furniture, Upholstered
    • 2514 Metal Household Furniture
    • 2515 Mattresses, Foundations, and Convertible Beds
    • 2517 Wood Television, Radio, Phonograph, and Sewing Machine Cabinets
    • 2519 Household Furniture, Not Elsewhere Classified
  • 252 Office Furniture
    • 2521 Wood Office Furniture
    • 2522 Office Furniture, Except Wood
  • 253 Public Building and Related Furniture
    • 2531 Public Building and Related Furniture
  • 254 Partitions, Shelving, Lockers, and Office and Store Fixtures
    • 2541 Wood Office and Store Fixtures, Partitions, Shelving, and Lockers
    • 2542 Office and Store Fixtures, Partitions, Shelving, and Lockers, Except Wood
  • 259 Miscellaneous Furniture and Fixtures
    • 2591 Drapery Hardware and Window Blinds and Shades
    • 2599 Furniture and Fixtures, Not Elsewhere Classified
• 26 Paper and Allied Products
  • 261 Pulp Mills
    • 2611 Pulp Mills
  • 262 Paper Mills
    • 2621 Paper Mills
  • 263 Paperboard Mills
    • 2631 Paperboard Mills
  • 265 Paperboard Containers and Boxes
    • 2652 Setup Paperboard Boxes
    • 2653 Corrugated and Solid Fiber Boxes
    • 2655 Fiber Cans, Tubes, Drums, and Similar Products
    • 2656 Sanitary Food Containers, Except Folding
    • 2657 Folding Paperboard Boxes, Including Sanitary
  • 267 Converted Paper and Paperboard Products, Except Containers and Boxes
    • 2671 Packaging Paper and Plastics Film, Coated and Laminated
    • 2672 Coated and Laminated Paper, Not Elsewhere Classified
    • 2673 Plastics, Foil, and Coated Paper Bags
    • 2674 Uncoated Paper and Multiwall Bags
    • 2675 Die-Cut Paper and Paperboard and Cardboard
    • 2676 Sanitary Paper Products
    • 2677 Envelopes
    • 2678 Stationery, Tablets, and Related Products
    • 2679 Converted Paper and Paperboard Products, Not Elsewhere Classified
• 27 Printing, Publishing and Allied Industries
  • 271 Newspapers - Publishing, Or Publishing and Printing
    • 2711 Newspapers - Publishing, or Publishing and Printing
  • 272 Periodicals - Publishing, Or Publishing and Printing
    • 2721 Periodicals - Publishing, or Publishing and Printing
  • 273 Books
    • 2731 Books - Publishing, or Publishing and Printing
    • 2732 Book Printing
  • 274 Miscellaneous Publishing
    • 2741 Miscellaneous Publishing
  • 275 Commercial Printing
    • 2752 Commercial Printing, Lithographic
    • 2754 Commercial Printing, Gravure
    • 2759 Commercial Printing, Not Elsewhere Classified
  • 276 Manifold Business Forms
    • 2761 Manifold Business Forms
  • 277 Greeting Cards
    • 2771 Greeting Cards
  • 278 Blankbooks, Looseleaf Binders, and Bookbinding
    • 2782 Blankbooks, Looseleaf Binders and Devices
    • 2789 Bookbinding and Related Work
  • 279 Service Industries for the Printing Trade
    • 2791 Typesetting
    • 2796 Platemaking and Related Services
• 28 Chemicals and Allied Products
  • 281 Industrial Inorganic Chemicals
    • 2812 Alkalies and Chlorine
    • 2813 Industrial Gases
    • 2816 Inorganic Pigments
    • 2819 Industrial Inorganic Chemicals, Not Elsewhere Classified
  • 282 Plastics Materials and Synthetic Resins, Synthetic
    • 2821 Plastics Materials, Synthetic Resins, and Nonvulcanizable Elastomers
    • 2822 Synthetic Rubber (Vulcanizable Elastomers)
    • 2823 Cellulosic Manmade Fibers
    • 2824 Manmade Organic Fibers, Except Cellulosic
  • 283 Drugs
    • 2833 Medicinal Chemicals and Botanical Products
    • 2834 Pharmaceutical Preparations
    • 2835 In Vitro and In Vivo Diagnostic Substances
    • 2836 Biological Products, Except Diagnostic Substances
  • 284 Soap, Detergents, and Cleaning Preparations; Perfumes, Cosmetics, and Other Toilet Preparations
    • 2841 Soap and Other Detergents, Except Specialty Cleaners
    • 2842 Specialty Cleaning, Polishing, and Sanitation Preparations
    • 2843 Surface Active Agents, Finishing Agents, Sulfonated Oils, and Assistants
    • 2844 Perfumes, Cosmetics, and Other Toilet Preparations
  • 285 Paints, Varnishes, Lacquers, Enamels, and Allied Products
    • 2851 Paints, Varnishes, Lacquers, Enamels, and Allied Products
  • 286 Industrial Organic Chemicals
    • 2861 Gum and Wood Chemicals
    • 2865 Cyclic Organic Crudes and Intermediates, and Organic Dyes and Pigments
    • 2869 Industrial Organic Chemicals, Not Elsewhere Classified
  • 287 Agricultural Chemicals
    • 2873 Nitrogenous Fertilizers
    • 2874 Phosphatic Fertilizers
    • 2875 Fertilizers, Mixing Only
    • 2879 Pesticides and Agricultural Chemicals, Not Elsewhere Classified
  • 289 Miscellaneous Chemical Products
    • 2891 Adhesives and Sealants
    • 2892 Explosives
    • 2893 Printing Ink
    • 2895 Carbon Black
    • 2899 Chemicals and Chemical Preparations, Not Elsewhere Classified
• 29 Petroleum Refining and Related Industries
  • 291 Petroleum Refining
    • 2911 Petroleum Refining
  • 295 Asphalt Paving and Roofing Materials
    • 2951 Asphalt Paving Mixtures and Blocks
    • 2952 Asphalt Felts and Coatings
  • 299 Miscellaneous Products of Petroleum and Coal
    • 2992 Lubricating Oils and Greases
    • 2999 Products of Petroleum and Coal, Not Elsewhere Classified
• 30 Rubber and Miscellaneous Plastic Products
  • 301 Tires and Inner Tubes
    • 3011 Tires and Inner Tubes
  • 302 Rubber and Plastics Footwear
    • 3021 Rubber and Plastics Footwear
  • 305 Gaskets, Packing, and Sealing Devices and Rubber
    • 3052 Rubber and Plastics Hose and Belting
    • 3053 Gaskets, Packing, and Sealing Devices
  • 306 Fabricated Rubber Products, Not Elsewhere Classified
    • 3061 Molded, Extruded, and Lathe-Cut Mechanical Rubber Goods
    • 3069 Fabricated Rubber Products, Not Elsewhere Classified
  • 308 Miscellaneous Plastics Products
    • 3081 Unsupported Plastics Film and Sheet
    • 3082 Unsupported Plastics Profile Shapes
    • 3083 Laminated Plastics Plate, Sheet, and Profile Shapes
    • 3084 Plastics Pipe
    • 3085 Plastics Bottles
    • 3086 Plastics Foam Products
    • 3087 Custom Compounding of Purchased Plastics Resins
    • 3088 Plastics Plumbing Fixtures
    • 3089 Plastics Products, Not Elsewhere Classified
• 31 Leather and Leather Products
  • 311 Leather Tanning and Finishing
    • 3111 Leather Tanning and Finishing
  • 313 Boot and Shoe Cut Stock and Findings
    • 3131 Boot and Shoe Cut Stock and Findings
  • 314 Footwear, Except Rubber
    • 3142 House Slippers
    • 3143 Men's Footwear, Except Athletic
    • 3144 Women's Footwear, Except Athletic
    • 3149 Footwear, Except Rubber, Not Elsewhere Classified
  • 315 Leather Gloves and Mittens
    • 3151 Leather Gloves and Mittens
  • 316 Luggage
    • 3161 Luggage
  • 317 Handbags and Other Personal Leather Goods
    • 3171 Women's Handbags and Purses
    • 3172 Personal Leather Goods, Except Women's Handbags and Purses
  • 319 Leather Goods, Not Elsewhere Classified
    • 3199 Leather Goods, Not Elsewhere Classified
• 32 Stone, Clay, Glass, and Concrete Products
  • 321 Flat Glass
    • 3211 Flat Glass
  • 322 Glass and Glassware, Pressed Or Blown
    • 3221 Glass Containers
    • 3229 Pressed and Blown Glass and Glassware, Not Elsewhere Classified
  • 323 Glass Products, Made of Purchased Glass
    • 3231 Glass Products, Made of Purchased Glass
  • 324 Cement, Hydraulic
    • 3241 Cement, Hydraulic
  • 325 Structural Clay Products
    • 3251 Brick and Structural Clay Tile
    • 3253 Ceramic Wall and Floor Tile
    • 3255 Clay Refractories
    • 3259 Structural Clay Products, Not Elsewhere Classified
  • 326 Pottery and Related Products
    • 3261 Vitreous China Plumbing Fixtures and China and Earthenware Fittings and Bathroom Accessories
    • 3262 Vitreous China Table and Kitchen Articles
    • 3263 Fine Earthenware (Whiteware) Table and Kitchen Articles
    • 3264 Porcelain Electrical Supplies
    • 3269 Pottery Products, Not Elsewhere Classified
  • 327 Concrete, Gypsum, and Plaster Products
    • 3271 Concrete Block and Brick
    • 3272 Concrete Products, Except Block and Brick
    • 3273 Ready-Mixed Concrete
    • 3274 Lime
    • 3275 Gypsum Products
  • 328 Cut Stone and Stone Products
    • 3281 Cut Stone and Stone Products
  • 329 Abrasive, Asbestos, and Miscellaneous
    • 3291 Abrasive Products
    • 3292 Asbestos Products
    • 3295 Minerals and Earths, Ground or Otherwise Treated
    • 3296 Mineral Wool
    • 3297 Nonclay Refractories
    • 3299 Nonmetallic Mineral Products, Not Elsewhere Classified
• 33 Primary Metal Industries
  • 331 Steel Works, Blast Furnaces, and Rolling and Finishing Mills
    • 3312 Steel Works, Blast Furnaces (Including Coke Ovens), and Rolling Mills
    • 3313 Electrometallurgical Products, Except Steel
    • 3315 Steel Wiredrawing and Steel Nails and Spikes
    • 3316 Cold-Rolled Steel Sheet, Strip, and Bars
    • 3317 Steel Pipe and Tubes
  • 332 Iron and Steel Foundries
    • 3321 Gray and Ductile Iron Foundries
    • 3322 Malleable Iron Foundries
    • 3324 Steel Investment Foundries
    • 3325 Steel Foundries, Not Elsewhere Classified
  • 333 Primary Smelting and Refining of Nonferrous
    • 3331 Primary Smelting and Refining of Copper
    • 3334 Primary Production of Aluminum
    • 3339 Primary Smelting and Refining of Nonferrous Metals, Except Copper and Aluminum
  • 334 Secondary Smelting and Refining of Nonferrous
    • 3341 Secondary Smelting and Refining of Nonferrous Metals
  • 335 Rolling, Drawing, and Extruding of Nonferrous
    • 3351 Rolling, Drawing, and Extruding of Copper
    • 3353 Aluminum Sheet, Plate, and Foil
    • 3354 Aluminum Extruded Products
    • 3355 Aluminum Rolling and Drawing, Not Elsewhere Classified
    • 3356 Rolling, Drawing, and Extruding of Nonferrous Metals, Except Copper and Aluminum
    • 3357 Drawing and Insulating of Nonferrous Wire
  • 336 Nonferrous Foundries (castings)
    • 3363 Aluminum Die-Castings
    • 3364 Nonferrous Die-Castings, Except Aluminum
    • 3365 Aluminum Foundries
    • 3366 Copper Foundries
    • 3369 Nonferrous Foundries, Except Aluminum and Copper
  • 339 Miscellaneous Primary Metal Products
    • 3398 Metal Heat Treating
    • 3399 Primary Metal Products, Not Elsewhere Classified
• 34 Fabricated Metal Products
  • 341 Metal Cans and Shipping Containers
    • 3411 Metal Cans
    • 3412 Metal Shipping Barrels, Drums, Kegs, and Pails
  • 342 Cutlery, Handtools, and General Hardware
    • 3421 Cutlery
    • 3423 Hand and Edge Tools, Except Machine Tools and Handsaws
    • 3425 Saw Blades and Handsaws
    • 3429 Hardware, Not Elsewhere Classified
  • 343 Heating Equipment, Except Electric And Warm Air; And Plumbing Fixtures
    • 3431 Enameled Iron and Metal Sanitary Ware
    • 3432 Plumbing Fixture Fittings and Trim
    • 3433 Heating Equipment, Except Electric and Warm Air Furnaces
  • 344 Fabricated Structural Metal Products
    • 3441 Fabricated Structural Metal
    • 3442 Metal Doors, Sash, Frames, Molding, and Trim Manufacturing
    • 3443 Fabricated Plate Work (Boiler Shops)
    • 3444 Sheet Metal Work
    • 3446 Architectural and Ornamental Metal Work
    • 3448 Prefabricated Metal Buildings and Components
    • 3449 Miscellaneous Structural Metal Work
  • 345 Screw Machine Products, and Bolts, Nuts, Screws, Rivets, and Washers
    • 3451 Screw Machine Products
    • 3452 Bolts, Nuts, Screws, Rivets, and Washers
  • 346 Metal Forgings and Stampings
    • 3462 Iron and Steel Forgings
    • 3463 Nonferrous Forgings
    • 3465 Automotive Stampings
    • 3466 Crowns and Closures
    • 3469 Metal Stampings, Not Elsewhere Classified
  • 347 Coating, Engraving, and Allied Services
    • 3471 Electroplating, Plating, Polishing, Anodizing, and Coloring
    • 3479 Coating, Engraving, and Allied Services, Not Elsewhere Classified
  • 348 Ordnance and Accessories, Except Vehicles and Guided Missiles
    • 3482 Small Arms Ammunition
    • 3483 Ammunition, Except for Small Arms
    • 3484 Small Arms
    • 3489 Ordnance and Accessories, Not Elsewhere Classified
  • 349 Miscellaneous Fabricated Metal Products
    • 3491 Industrial Valves
    • 3492 Fluid Power Valves and Hose Fittings
    • 3493 Steel Springs, Except Wire
    • 3494 Valves and Pipe Fittings, Not Elsewhere Classified
    • 3495 Wire Springs
    • 3496 Miscellaneous Fabricated Wire Products
    • 3497 Metal Foil and Leaf
    • 3498 Fabricated Pipe and Pipe Fittings
    • 3499 Fabricated Metal Products, Not Elsewhere Classified
• 35 Industrial and Commercial Machinery and Computer Equipment
  • 351 Engines and Turbines
    • 3511 Steam, Gas, and Hydraulic Turbines, and Turbine Generator Set Units
    • 3519 Internal Combustion Engines, Not Elsewhere Classified
  • 352 Farm and Garden Machinery and Equipment
    • 3523 Farm Machinery and Equipment
    • 3524 Lawn and Garden Tractors and Home Lawn and Garden Equipment
  • 353 Construction, Mining, and Materials Handling
    • 3531 Construction Machinery and Equipment
    • 3532 Mining Machinery and Equipment, Except Oil and Gas Field Machinery and Equipment
    • 3533 Oil and Gas Field Machinery and Equipment
    • 3534 Elevators and Moving Stairways
    • 3535 Conveyors and Conveying Equipment
    • 3536 Overhead Traveling Cranes, Hoists, and Monorail Systems
    • 3537 Industrial Trucks, Tractors, Trailers, and Stackers
  • 354 Metalworking Machinery and Equipment
    • 3541 Machine Tools, Metal Cutting Types
    • 3542 Machine Tools, Metal Forming Types
    • 3543 Industrial Patterns
    • 3544 Special Dies and Tools, Die Sets, Jigs and Fixtures, and Industrial Molds
    • 3545 Cutting Tools, Machine Tool Accessories, and Machinists' Precision Measuring Devices
    • 3546 Power-Driven Handtools
    • 3547 Rolling Mill Machinery and Equipment
    • 3548 Electric and Gas Welding and Soldering Equipment
    • 3549 Metalworking Machinery, Not Elsewhere Classified
  • 355 Special Industry Machinery, Except Metalworking
    • 3552 Textile Machinery
    • 3553 Woodworking Machinery
    • 3554 Paper Industries Machinery
    • 3555 Printing Trades Machinery and Equipment
    • 3556 Food Products Machinery
    • 3559 Special Industry Machinery, Not Elsewhere Classified
  • 356 General Industrial Machinery and Equipment
    • 3561 Pumps and Pumping Equipment
    • 3562 Ball and Roller Bearings
    • 3563 Air and Gas Compressors
    • 3564 Industrial and Commercial Fans and Blowers and Air Purification Equipment
    • 3565 Packaging Machinery
    • 3566 Speed Changers, Industrial High-Speed Drives, and Gears
    • 3567 Industrial Process Furnaces and Ovens
    • 3568 Mechanical Power Transmission Equipment, Not Elsewhere Classified
    • 3569 General Industrial Machinery and Equipment, Not Elsewhere
  • 357 Computer and Office Equipment
    • 3571 Electronic Computers
    • 3572 Computer Storage Devices
    • 3575 Computer Terminals
    • 3577 Computer Peripheral Equipment, Not Elsewhere Classified
    • 3578 Calculating and Accounting Machines, Except Electronic Computers
    • 3579 Office Machines, Not Elsewhere Classified
  • 358 Refrigeration and Service Industry Machinery
    • 3581 Automatic Vending Machines
    • 3582 Commercial Laundry, Drycleaning, and Pressing Machines
    • 3585 Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment
    • 3586 Measuring and Dispensing Pumps
    • 3589 Service Industry Machinery, Not Elsewhere Classified
  • 359 Miscellaneous Industrial and Commercial
    • 3592 Carburetors, Pistons, Piston Rings, and Valves
    • 3593 Fluid Power Cylinders and Actuators
    • 3594 Fluid Power Pumps and Motors
    • 3596 Scales and Balances, Except Laboratory
    • 3599 Industrial and Commercial Machinery and Equipment, Not Elsewhere Classified
• 36 Electronic & Other Electrical Equipment & Components
  • 361 Electric Transmission and Distribution Equipment
    • 3612 Power, Distribution, and Specialty Transformers
    • 3613 Switchgear and Switchboard Apparatus
  • 362 Electrical Industrial Apparatus
    • 3621 Motors and Generators
    • 3624 Carbon and Graphite Products
    • 3625 Relays and Industrial Controls
    • 3629 Electrical Industrial Apparatus, Not Elsewhere Classified
  • 363 Household Appliances
    • 3631 Household Cooking Equipment
    • 3632 Household Refrigerators and Home and Farm Freezers
    • 3633 Household Laundry Equipment
    • 3634 Electric Housewares and Fans
    • 3635 Household Vacuum Cleaners
    • 3639 Household Appliances, Not Elsewhere Classified
  • 364 Electric Lighting and Wiring Equipment
    • 3641 Electric Lamp Bulbs and Tubes
    • 3643 Current-Carrying Wiring Devices
    • 3644 Noncurrent-Carrying Wiring Devices
    • 3645 Residential Electric Lighting Fixtures
    • 3646 Commercial, Industrial, and Institutional Electric Lighting Fixtures
    • 3647 Vehicular Lighting Equipment
    • 3648 Lighting Equipment, Not Elsewhere Classified
  • 365 Household Audio And Video Equipment, And Audio Recordings
    • 3651 Household Audio and Video Equipment
    • 3652 Phonograph Records and Prerecorded Audio Tapes and Disks
  • 366 Communications Equipment
    • 3661 Telephone and Telegraph Apparatus
    • 3663 Radio and Television Broadcasting and Communications Equipment
    • 3669 Communications Equipment, Not Elsewhere Classified
  • 367 Electronic Components and Accessories
    • 3671 Electron Tubes
    • 3672 Printed Circuit Boards
    • 3674 Semiconductors and Related Devices
    • 3675 Electronic Capacitors
    • 3676 Electronic Resistors
    • 3677 Electronic Coils, Transformers, and Other Inductors
    • 3678 Electronic Connectors
    • 3679 Electronic Components, Not Elsewhere Classified
  • 369 Miscellaneous Electrical Machinery, Equipment, and Supplies
    • 3691 Storage Batteries
    • 3692 Primary Batteries, Dry and Wet
    • 3694 Electrical Equipment for Internal Combustion Engines
    • 3695 Magnetic And Optical Recording Media
    • 3699 Electrical Machinery, Equipment, and Supplies, Not Elsewhere
• 37 Transportation Equipment
  • 371 Motor Vehicles and Motor Vehicle Equipment
    • 3711 Motor Vehicles and Passenger Car Bodies
    • 3713 Truck and Bus Bodies
    • 3714 Motor Vehicle Parts and Accessories
    • 3715 Truck Trailers
    • 3716 Motor Homes
  • 372 Aircraft and Parts
    • 3721 Aircraft
    • 3724 Aircraft Engines and Engine Parts
    • 3728 Aircraft Parts and Auxiliary Equipment, Not Elsewhere Classified
  • 373 Ship and Boat Building and Repairing
    • 3731 Ship Building and Repairing
    • 3732 Boat Building and Repairing
  • 374 Railroad Equipment
    • 3743 Railroad Equipment
  • 375 Motorcycles, Bicycles, and Parts
    • 3751 Motorcycles, Bicycles, and Parts
  • 376 Guided Missiles and Space Vehicles and Parts
    • 3761 Guided Missiles and Space Vehicles
    • 3764 Guided Missile and Space Vehicle Propulsion Units and Propulsion Unit Parts
    • 3769 Guided Missile Space Vehicle Parts and Auxiliary Equipment, Not Elsewhere Classified
  • 379 Miscellaneous Transportation Equipment
    • 3792 Travel Trailers and Campers
    • 3795 Tanks and Tank Components
    • 3799 Transportation Equipment, Not Elsewhere Classified
• 38 Measuring, Photographic, Medical, & Optical Goods, & Clocks
  • 381 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical Systems, Instruments, and Equipment
    • 3812 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical Systems and Instruments
  • 382 Laboratory Apparatus and Analytical, Optical, Measuring, and Controlling Instruments
    • 3821 Laboratory Apparatus and Furniture
    • 3822 Automatic Controls for Regulating Residential and Commercial Environments and Appliances
    • 3823 Industrial Instruments for Measurement, Display, and Control of Process Variables; and Related Products
    • 3824 Totalizing Fluid Meters and Counting Devices
    • 3825 Instruments for Measuring and Testing of Electricity and Electrical Signals
    • 3826 Laboratory Analytical Instruments
    • 3827 Optical Instruments and Lenses
    • 3829 Measuring and Controlling Devices, Not Elsewhere Classified
  • 384 Surgical, Medical, and Dental Instruments and Supplies
    • 3841 Surgical and Medical Instruments and Apparatus
    • 3842 Orthopedic, Prosthetic, and Surgical Appliances and Supplies
    • 3843 Dental Equipment and Supplies
    • 3844 X-Ray Apparatus and Tubes and Related Irradiation Apparatus
    • 3845 Electromedical and Electrotherapeutic Apparatus
  • 385 Ophthalmic Goods
    • 3851 Ophthalmic Goods
  • 386 Photographic Equipment and Supplies
    • 3861 Photographic Equipment and Supplies
  • 387 Watches, Clocks, Clockwork Operated Devices, and Parts
    • 3873 Watches, Clocks, Clockwork Operated Devices, and Parts
• 39 Miscellaneous Manufacturing Industries
  • 391 Jewelry, Silverware, and Plated Ware
    • 3911 Jewelry, Precious Metal
    • 3914 Silverware, Plated Ware, and Stainless Steel Ware
    • 3915 Jewelers' Findings and Materials, and Lapidary Work
  • 393 Musical Instruments
    • 3931 Musical Instruments
  • 394 Dolls, Toys, Games and Sporting and Athletic
    • 3942 Dolls and Stuffed Toys
    • 3944 Games, Toys, and Children's Vehicles, Except Dolls and Bicycles
    • 3949 Sporting and Athletic Goods, Not Elsewhere Classified
  • 395 Pens, Pencils, and Other Artists Materials
    • 3951 Pens, Mechanical Pencils, and Parts
    • 3952 Lead Pencils, Crayons, and Artists' Materials
    • 3953 Marking Devices
    • 3955 Carbon Paper and Inked Ribbons
  • 396 Costume Jewelry, Costume Novelties, Buttons, And Miscellaneous Notions, Except Precious Metal
    • 3961 Costume Jewelry and Costume Novelties, Except Precious Metal
    • 3965 Fasteners, Buttons, Needles, and Pins
  • 399 Miscellaneous Manufacturing Industries
    • 3991 Brooms and Brushes
    • 3993 Signs and Advertising Specialties
    • 3995 Burial Caskets
    • 3996 Linoleum, Asphalted-Felt-Base, and Other Hard Surface Floor Coverings, Not Elsewhere Classified
    • 3999 Manufacturing Industries, Not Elsewhere Classified

Extended US-SIC Hierarchy for 3398 - Metal Heat Treating

For business marketing and targeting, US SIC Codes have been extended to provide more specific classifications within US-SIC 3398 - Metal Heat Treating. Extended US SIC Codes are being continuously updated to reflect the current business environment.

6 Digit SIC Codes

• 339801 Heat treating metal (manufacturers)
• 339802 Shot peening (manufacturers)
• 339803 Lead burning (manufacturers)

8 Digit SIC Codes

• 33980000 Metal heat treating
• 33989900 Metal heat treating, nec
• 33989901 Annealing of metal
• 33989902 Brazing (hardening) of metal
• 33989903 Metal burning
• 33989904 Shot peening (treating steel to reduce fatigue)
• 33989905 Tempering of metal

Can't find the US SIC Code you are looking for? Full US SIC Code Directory

US SIC Code Directory

Each US SIC Code is part of a Division, which corresponds with a numerical range. Select a Division category from the table below, then drill down to discover the industries within that Division.