{
    "code": "3398",
    "title": "Metal Heat Treating",
    "sic_manual": "OSHA SIC Manual",
    "level": "Industry",
    "major_group_code": "33",
    "parent_code": "339",
    "parent_title": "Miscellaneous Primary Metal Products",
    "plain_english_definition": "",
    "summary_plain": "",
    "official_definition": "Establishments primarily engaged in heat treating of metal for the trade.",
    "official_source": "https://www.osha.gov/sic-manual/3398",
    "classification_note": "",
    "included_activities": [
        "Annealing of metal for the trade",
        "Brazing (hardening) metal for the trade",
        "Burning metal for the trade",
        "Hardening of metal for the trade",
        "Heat treating of metal for the trade"
    ],
    "excluded_activities": [],
    "confused_codes": [],
    "official_siblings": [
        {
            "code": "3398",
            "title": "Metal Heat Treating",
            "url": "https://siccode.com/sic-code/3398/metal-heat-treating",
            "label": "Industry"
        },
        {
            "code": "3399",
            "title": "Primary Metal Products, Not Elsewhere Classified",
            "url": "https://siccode.com/sic-code/3399/primary-metal-products",
            "label": "Industry"
        }
    ],
    "official_children": [],
    "related_naics_codes": [
        {
            "code": "332811",
            "title": "Metal Heat Treating ",
            "url": "https://siccode.com/naics-code/332811/metal-heat-treating"
        }
    ],
    "example_companies": [
        {
            "name": "Fisher Barton Group",
            "url": "https://siccode.com/business/fisher-barton-group",
            "city": "Watertown",
            "state": "WI",
            "reviewed": false
        },
        {
            "name": "Bodycote Thermal Processing",
            "url": "https://siccode.com/business/bodycote-thermal-processing",
            "city": "Dallas",
            "state": "TX",
            "reviewed": false
        },
        {
            "name": "Franklin Brazing And Metal Treating",
            "url": "https://siccode.com/business/franklin-brazing-and-metal-treating",
            "city": "Lebanon",
            "state": "OH",
            "reviewed": false
        },
        {
            "name": "Braddock Metallurgical Daytona Inc",
            "url": "https://siccode.com/business/braddock-metallurgical-daytona-inc",
            "city": "Daytona Beach",
            "state": "FL",
            "reviewed": false
        },
        {
            "name": "Metals Engineering",
            "url": "https://siccode.com/business/metals-engineering",
            "city": "Green Bay",
            "state": "WI",
            "reviewed": false
        },
        {
            "name": "Bluewater Thermal Solutions",
            "url": "https://siccode.com/business/bluewater-thermal-solutions",
            "city": "Greenville",
            "state": "SC",
            "reviewed": false
        },
        {
            "name": "P And L Grinding, LLC",
            "url": "https://siccode.com/business/p-and-l-grinding-llc",
            "city": "Youngstown",
            "state": "OH",
            "reviewed": false
        },
        {
            "name": "PCC Schlosser",
            "url": "https://siccode.com/business/pcc-schlosser",
            "city": "Redmond",
            "state": "OR",
            "reviewed": false
        },
        {
            "name": "Fabricated Tube Products",
            "url": "https://siccode.com/business/fabricated-tube-products",
            "city": "Carthage",
            "state": "TN",
            "reviewed": false
        },
        {
            "name": "Meadville Forging Co",
            "url": "https://siccode.com/business/meadville-forging-co",
            "city": "Meadville",
            "state": "PA",
            "reviewed": false
        },
        {
            "name": "Aba Heat Treating",
            "url": "https://siccode.com/business/aba-heat-treating",
            "city": "Terryville",
            "state": "CT",
            "reviewed": false
        }
    ],
    "company_count": 356,
    "email_contact_count": 189,
    "phone_count": 337,
    "website_count": 379,
    "database_as_of": "Nov 6, 2026",
    "count_type": "commercial",
    "count_disclaimer": "These are SICCODE.com commercial database counts, not official government establishment totals. Website-Reviewed & Enriched is a separate review of company websites for products, services, markets, and fit.",
    "canonical_url": "https://siccode.com/sic-code/3398/metal-heat-treating",
    "json_url": "https://siccode.com/sic-code/3398.json",
    "reviewed_by": "SICCODE.com Classification Review Team",
    "last_updated": "October 2026"
}