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Industry Primers

Bottom-up NAICS industry primers written for both public-market and private investors. Leaf industries are researched from the ground up; every group, subsector, and sector above them reads as a contrast across the industries beneath it.

2122 industries · 24 sectors · NAICS 2022

Researched with AI assistance from official U.S. statistics and independent sources, with citations on every page. Figures are not individually verified against pinned evidence — primers marked Evidence-verified are. Industry research, not investment advice. Methodology.

National industryNAICS 332111

U.S. Iron and Steel Forging: An Investor Primer

1. Overview

Iron and steel forging—North American Industry Classification System (NAICS) code 332111—turns purchased iron and steel into strong, fatigue-resistant components using hammers, presses and ring mills.[1] Demand comes from aerospace, defense, vehicles, rail, energy, construction equipment and heavy industry.

Public investors can buy diversified manufacturers with forging operations; there is no clean large-cap pure play. Private investors have more direct routes through independent forgers, family businesses, employee-owned companies and private-equity carve-outs.

The central investment question is not simply steel demand. It is whether a plant has scarce equipment, qualified processes, reliable raw-material pass-through and enough volume to absorb its fixed costs.

2. What it is and how the industry is structured

Forging plastically deforms solid, usually heated, metal under pressure; it does not melt and pour the metal as casting does. Steel billet, bar or ingot is cut, normally heated, preformed and then worked between dies or under an open press or hammer. Subsequent stages can include trimming, piercing, controlled cooling, heat treatment, shot blasting or descaling, nondestructive inspection and machining.[2]

Closed-die or impression-die forging uses matched tooling and is suited to repeat production of items such as gears, shafts, connecting rods, and steering and suspension components. Open-die forging makes large or custom shapes such as shafts, discs, blocks and pressure-containing components. Ring rolling produces seamless rings for bearing races, flanges, turbine and gearbox rings, and other circumferentially loaded parts. The process may also be performed warm or cold.[3]

The economic value is reliability rather than shape alone. Deformation aligns grain flow with the part geometry and generally delivers better fatigue, impact and toughness characteristics than a comparable casting or a part machined entirely from bar. Forgings therefore appear disproportionately in safety-critical or highly loaded applications and are usually invisible intermediate components, not consumer products.[4]

NAICS 332111 includes forgings made from purchased iron or steel, plus associated cleaning and deburring.[1] It excludes:

  • Forging inside integrated steel mills, classified under NAICS 331110.
  • Nonferrous forging, classified under NAICS 332112.
  • Iron and steel foundries, which pour molten metal into molds.
  • Plants that forge and then manufacture a specific finished product, which are classified with that product.[1]

That last boundary matters: captive forge shops inside vehicle, machinery, aerospace and defense plants can be economically important without appearing in this industry's federal totals. Many published "forging market" totals combine ferrous and nonferrous metals, captive automotive operations, integrated mills, castings and finished aerospace components, and therefore do not measure this industry.

Ownership is mixed. Diversified public manufacturers coexist with family-owned groups, employee stock ownership plan (ESOP) companies and private-equity-backed platforms.

3. How big it is

County Business Patterns recorded 283 employer establishments, 17,126 employees, $1.315 billion of annual payroll and $327.9 million of first-quarter payroll in 2023.[5]

An EPA economic analysis using 2022 data reports a somewhat larger universe: 324 firms operating 376 establishments, with 19,681 employees, annual payroll of $1.395 billion and preliminary receipts of $8.431 billion.[6] The establishment count difference may reflect dataset vintage, universe definition or disclosure methodology; the sources do not reconcile the discrepancy, and it should not be interpreted as a one-year collapse in capacity.

These are employer-establishment figures, not the value of every forging made in America. They exclude nonemployers and public-sector operations, although this capital-intensive industry is not dominated by either. The more material understatement comes from captive and vertically integrated forging operations classified elsewhere.

Our federal ground-truth extract provides no usable unsuppressed concentration ratio or Herfindahl-Hirschman Index; none is estimated here. The large number of small firms does not establish low revenue concentration: the largest automotive programs, aerospace-qualified processes and very-heavy open-die capacity may be concentrated even when establishment counts are fragmented. The Small Business Administration's size standard is 750 employees, but that is an eligibility threshold for federal programs—not a description of the typical company.[7]

4. Investable universe

No listed company reports a pure NAICS 332111 segment.

Company Ticker Relevant exposure Main caveat
SIFCO Industries SIF Aerospace, defense and energy forgings; processes steel and other alloys. Fiscal-2025 sales of $84.8 million.[8] Closest focused listed vehicle, but small and not purely ferrous.
Park-Ohio Holdings PKOH Forged steel and machined products serving rail, defense and industrial markets; $111.3 million of forged-and-machined-products revenue in 2025.[9] Forging is part of a diversified group.
Sypris Solutions SYPR Forged and finished steel components for commercial vehicles and energy infrastructure.[10] Small company with electronics and non-U.S. operations.
Dauch Corporation (formerly American Axle) DCH Metal Forming unit makes forged engine, transmission, driveline and safety-critical vehicle components for internal-combustion, hybrid and electric architectures.[11][12] Forging is combined with driveline systems, castings and powder metallurgy; completed Dowlais acquisition for approximately $1.7 billion in February 2026.[12]
Berkshire Hathaway BRK.A, BRK.B Owns Precision Castparts and Wyman-Gordon, major producers of steel, titanium and nickel-alloy forgings.[13][14] Forging exposure is highly diluted within Berkshire.

ATI and Howmet Aerospace offer substantial specialty-forging exposure, but much of it is nickel-, titanium- or aluminum-based and therefore adjacent to iron and steel forging rather than a clean match. ATI reported $4.59 billion of fiscal-2025 sales, of which aerospace and defense represented 68%; those are company figures, not NAICS 332111 revenue.[15][16]

Major private operators include:

  • Ellwood: family-owned and vertically integrated across specialty steel, open- and closed-die forging, rolled rings, crankshafts, machining and defense components.[17]
  • Scot Forge: wholly employee-owned, with open-die, semi-closed-die and rolled-ring capabilities.[18]
  • North American Forgemasters: a venture between Ellwood and Scot Forge supplying very-large critical forgings.[19]
  • FerroWorks: a Stellex Capital Management platform combining rail and heavy-industrial forging and foundry assets acquired from Arcosa.[20]
  • Walor North America: Mutares-backed automotive steel forging and machining operations formerly owned by Hirschvogel.[21]

The Forging Industry Association member directory provides useful evidence of private-market participation, although it is not a ranked market-share table.[22]

5. How the money works

A forger buys billet, bar or ingot; heats it; shapes it; heat-treats and inspects it; and may machine the part before delivery. The main costs are metal, fuel and electricity, skilled labor, dies, maintenance, testing and scrap. Process heating makes furnaces and energy efficiency economically important.[23]

This is a high-fixed-cost conversion business. Presses, hammers, manipulators, furnaces, ring mills, heat-treatment equipment, dies, inspection systems and machine tools are expensive and require continuing maintenance regardless of throughput. Once qualified capacity is installed, higher volume can contribute strongly to profit; low utilization, downtime or a program cancellation can leave substantial fixed expense unrecovered. SIFCO describes this operating leverage directly: higher sales and production volumes allow its significant fixed-cost base to be absorbed more effectively, while lower volume has the opposite effect. It recorded $992,000 of idle-capacity cost in fiscal 2025 and $1.412 million in fiscal 2024.[8]

Contracts commonly combine a base conversion price with raw-material or energy surcharges. Pass-through clauses protect margins, but time lags can still hurt cash flow. Contracts without pass-through leave the forger exposed to metal-price spikes. SIFCO notes that where a contract does not permit recovery, material inflation can materially damage contract profitability.[8]

Capacity utilization is the main operating lever. Higher throughput can expand margins quickly; falling volume has the reverse effect. Investors should track utilization, yield, scrap and rework, die life, overtime, on-time delivery, backlog quality, capital expenditure and working capital.

An authoritative industry-wide margin benchmark for NAICS 332111 could not be established. Public-company margins are imperfect proxies because their reporting units combine materials and processes. SIFCO, one of the more forging-focused public companies, reported fiscal-2025 gross profit of $10.6 million on $84.8 million of sales, a 12.5% gross margin versus 7.5% in fiscal 2024. The fiscal-2025 result included a $3.0 million Employee Retention Credit benefit; operating income was only $180,000.[8]

Park-Ohio's forged-and-machined-products revenue fell from $133.4 million in 2023 to $127.8 million in 2024 to $111.3 million in 2025. Its broader Engineered Products segment generated a 1.4% operating margin in 2025, down from 3.7% in 2024, and included an $8.9 million impairment primarily associated with Arkansas forging operations. These data illustrate cyclicality and operating leverage, not an industry margin benchmark.[9]

Value rises when the supplier adds heat treatment, machining, nondestructive testing and engineering. These services deepen customer relationships and capture more revenue per part.

Customer concentration is another defining economic feature. At SIFCO, two customers and their direct subcontractors represented 34% of fiscal-2025 sales. Total backlog was $119.2 million at September 30, 2025, but SIFCO cautions that orders can be modified or cancelled and backlog is not necessarily predictive of sales.[8]

6. Demand drivers

  • Aerospace and defense: long qualifications and safety requirements favor established suppliers. Engine, landing-gear and structural programs can provide multiyear demand. In fiscal 2025, SIFCO's fixed-wing sales increased with stronger program demand while commercial-space sales fell by $8.2 million as a customer reduced procurement while managing excess inventory. Military sales were $47.9 million, compared with commercial sales of $36.9 million.[8]
  • Automotive and heavy vehicles: high-volume closed-die forging offers strong operating leverage but sharp cyclicality and customer pricing pressure. Battery-electric vehicles eliminate crankshafts, connecting rods and much conventional transmission content but still need high-torque gears, shafts, wheel-end, suspension and safety components; hybrids preserve much internal-combustion content. Electrification is a negative mix shift for some traditional forge shops, not an extinction event for automotive forging.[11]
  • Power and energy: turbines, oil-and-gas equipment, pipelines and nuclear systems require high-strength rings, shafts, flanges and fittings. Nuclear life extension, new nuclear capacity, LNG and grid investment are supportive secular drivers.
  • Rail, mining and construction: demand follows freight activity, infrastructure spending, commodity investment and equipment replacement.
  • Agriculture: equipment demand follows farm profitability, credit conditions and fleet age. USDA's May 2026 forecast put nominal net farm income at $153.4 billion for 2026, down 0.7% from 2025; in inflation-adjusted terms, the forecast decline was 2.6%, a mildly adverse near-term signal for discretionary equipment purchases.[24]
  • Domestic sourcing: defense and federally assisted infrastructure programs can favor qualified U.S. production. DOE identifies castings and forgings as critical supply-chain capabilities and is funding near-net-shape, additive and hybrid manufacturing intended to complement and strengthen domestic production.[25]

Reported conditions are mixed: aerospace-oriented suppliers describe strength in aircraft, defense and turbine demand, while Park-Ohio has reported weaker orders and delays in forged and machined products.[9][15][16]

7. Regulation and policy

The Occupational Safety and Health Administration (OSHA) specifically regulates forging machinery under 29 Code of Federal Regulations 1910.218, covering guards, inspections, maintenance and safe operation.[26] Heat, noise, heavy material, presses and ejected metal make safety performance financially material.

The Environmental Protection Agency (EPA) regulates qualifying metal-fabrication air emissions; state and local rules also govern furnaces, wastewater, stormwater, hazardous waste and contaminated sites. EPA's RCRA industry lookup specifically includes NAICS 332111.[27][28]

Section 232 trade protection is based on Harmonized Tariff Schedule classifications, not NAICS codes. Under the current 2026 framework, covered steel articles can face a 50% duty, while derivative products can face 25% or temporarily reduced 15% rates depending on product and origin.[29][30] This can support domestic prices while also raising the cost of billet, equipment and replacement parts. HTS classification, metal origin and contract pass-through language are important underwriting issues.[31]

The Build America, Buy America Act favors domestically produced iron and steel in federally assisted infrastructure, subject to waivers.[32] Defense acquisition rules also restrict certain foreign forgings and specialty metals.[33]

Labor is a structural constraint. Forge shops need skilled operators, maintenance technicians, die makers, metallurgists and quality personnel, often in hot, noisy and physically demanding environments. A Department of Defense-supported workforce initiative described the casting-and-forging labor shortage as critical to the industrial base.[34]

8. Competitive dynamics and consolidation

Competition is local and global, but not uniform. Commodity automotive forgings compete on scale, automation and cost. Large open-die, aerospace, defense and nuclear work competes on equipment envelope, metallurgy, approvals, traceability and delivery reliability.

Entry barriers include expensive presses and furnaces, scarce skilled labor, long customer qualification cycles and the risk of running new capacity below breakeven. Once approved, a supplier can be difficult to replace, but customers often retain leverage through concentrated purchasing.

Consolidation commonly occurs through carve-outs rather than industry-wide mergers. Recent examples include Stellex's acquisition of Arcosa's rail-component platform and Mutares' purchase of Hirschvogel's North American operation.[20][21] Private buyers should verify whether an acquisition includes transferable customer approvals, tooling ownership, environmental liabilities and enough working capital to support long production cycles.

Process simulation, robotic handling, induction heating, automated inspection and closed-loop process control should improve yield and reduce dependence on scarce operators. Near-net-shape forging also reduces starting material and downstream machining. Additive manufacturing is a competitive threat for low-volume, highly complex parts but is also useful for dies, prototypes and hybrid preforms; DOE treats additive, casting and forging as complementary manufacturing routes rather than assuming wholesale displacement.[25][35]

9. Risks

  • Volume cycles: low utilization can compress margins rapidly.
  • Input volatility: steel, alloys, gas and electricity may move faster than surcharges.
  • Customer concentration: losing a qualified program can leave specialized equipment idle.
  • Quality failures: scrap, rework, recalls or loss of approval can outweigh years of profit.
  • Equipment outages: a critical press or furnace may have no practical substitute.
  • Labor: experienced forge operators, metallurgists and maintenance technicians are difficult to replace.
  • Trade policy: tariffs help some domestic sellers but raise inputs and can trigger retaliation.
  • Technology and product mix: casting, machining, fabrication and additive manufacturing can replace some forgings; vehicle electrification changes demand for engine and driveline parts.
  • Environmental and safety liabilities: legacy contamination, emissions controls and workplace incidents can create large, uneven costs.
  • Substitution: competing processes win when production volume is too low to amortize dies, shape complexity dominates, weight is paramount or a customer values near-final dimensions more than forged mechanical properties.

10. How to invest and outlook

Public investors should treat the listed names as different exposures, not substitutes. SIFCO offers greater forging concentration but more liquidity and execution risk. Park-Ohio and Sypris provide cyclical industrial exposure. Dauch is mainly a vehicle-volume thesis. Berkshire, ATI and Howmet offer stronger diversification but much less direct exposure to NAICS 332111.

Private investors should prioritize:

  • Utilization by press and furnace, not company-wide averages.
  • Contractual metal and energy pass-through.
  • Customer and program concentration.
  • Qualification status and approval portability.
  • Maintenance backlog and replacement cost.
  • Scrap, rework and on-time delivery history.
  • Environmental, pension and union obligations.
  • The share of earnings from machining, testing and other value-added work.
  • Die ownership and working-capital absorption as steel and work-in-process accumulate before customer acceptance.

Reported outlook: aerospace, defense and gas-turbine demand is stronger than automotive and heavy-vehicle demand at several public suppliers.[9][15][16]

Forward-looking judgment: scarce, qualified aerospace, defense, nuclear and power-generation capacity appears best positioned. Automotive and truck forging can produce greater upside when volumes recover, but also carries more cyclicality. Tariffs and domestic-content rules are supportive only when a company can secure metal, pass through costs and keep its equipment productively loaded.

Sources

  1. U.S. Census Bureau, "2022 NAICS Definition: Iron and Steel Forging," 2022, https://www.census.gov/naics/?details=33211&input=33211&year=2022
  2. Forging Industry Association, "What Is Forging?," 2026, https://www.forging.org/fia/content/about/What_is_Forging.aspx
  3. Forging Industry Association, "Product Design Guide for Forging," 2026, https://www.forging.org/Common/Uploaded%20files/Design%20Engineering%20Center/Product%20Design%20Guide%20for%20Forging.pdf
  4. Forging Industry Association, "How Forgings Compare to Other Processes," 2026, https://www.forging.org/fia/content/about/design-engineering-center-content/How_Forgings_Compare_to_Other_Processes.aspx
  5. U.S. Census Bureau, "2023 County Business Patterns," 2025, https://www2.census.gov/programs-surveys/cbp/datasets/2023/cbp23us.zip
  6. U.S. Environmental Protection Agency, "Economic Analysis for NAICS 332111," 2024, https://downloads.regulations.gov/EPA-HQ-OPPT-2020-0465-0426/attachment_2.pdf
  7. U.S. Small Business Administration, "Table of Size Standards," 2023, https://www.sba.gov/document/support-table-size-standards
  8. SIFCO Industries, "Annual Report on Form 10-K," 2025, https://www.sec.gov/Archives/edgar/data/90168/000162828025058405/sif-20250930.htm
  9. Park-Ohio Holdings, "Annual Report on Form 10-K," 2025, https://www.sec.gov/Archives/edgar/data/76282/000007628226000007/pkoh-20251231.htm
  10. Sypris Solutions, "Annual Report on Form 10-K," 2025, https://www.sec.gov/Archives/edgar/data/864240/000143774926009882/sypr20251231_10k.htm
  11. Dauch Corporation (formerly American Axle), "Metal Forming," 2026, https://www.aam.com/what-we-do/our-products/metal-forming
  12. Dauch Corporation, "Annual Report on Form 10-K," 2025, https://www.sec.gov/Archives/edgar/data/1062231/000106223126000020/dch-20251231.htm
  13. Berkshire Hathaway, "2025 Annual Report," 2026, https://www.sec.gov/Archives/edgar/data/1067983/000119312526106284/d948018dars.pdf
  14. Precision Castparts, "PCC Forged Products Divisions," 2026, https://www.pccforgedproducts.com/divisions/
  15. ATI, "Annual Report on Form 10-K," 2025, https://www.sec.gov/Archives/edgar/data/1018963/000162828026010140/ati-20251228.htm
  16. Howmet Aerospace, "Annual Report on Form 10-K," 2025, https://www.sec.gov/Archives/edgar/data/4281/000000428126000012/hwm-20251231.htm
  17. Ellwood Group, "About Ellwood," 2026, https://www.ellwoodgroup.com/about
  18. Scot Forge, "Our Unique Culture and Ownership," 2026, https://www.scotforge.com/about-us/our-unique-culture
  19. North American Forgemasters, "About Us," 2026, https://www.naforgemasters.com/about-us
  20. Arcosa, "Agreement to Sell Steel Components Business to Stellex Capital Management," 2024, https://ir.arcosa.com/news-events/press-releases/news-details/2024/Arcosa-Inc.-Announces-Agreement-to-Acquire-the-Construction-Materials-Business-of-Stavola-Holding-Corporation-for-1.2-Billion-and-Other-Value-Enhancing-Portfolio-Actions-to-Accelerate-Long-Term-Strategy/default.aspx
  21. FerrAl United, "Acquisition of Walor North America," 2024, https://ferral-united.com/2024/07/08/acquisition-of-walor-north-america/
  22. Forging Industry Association, "FIA Member Companies," 2026, https://www.forging.org/fia/content/about/FIA_Member_Companies_.aspx
  23. U.S. Department of Energy, "Process Heat Basics," 2026, https://www.energy.gov/cmei/ito/process-heat-basics
  24. U.S. Department of Agriculture Economic Research Service, "Farm Sector Income Forecast," 2026, https://ers.usda.gov/topics/farm-economy/farm-sector-income-finances/farm-sector-income-forecast
  25. U.S. Department of Energy, "Near-Net-Shape Manufacturing Workshop Report," 2024, https://www.energy.gov/sites/default/files/2024-02/near-net-shape-workshop-report-2024.pdf
  26. Occupational Safety and Health Administration, "1910.218—Forging Machines," current regulation, https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.218
  27. U.S. Environmental Protection Agency, "Metal Fabrication and Finishing Source Categories," 2026, https://www.epa.gov/stationary-sources-air-pollution/metal-fabrication-and-finishing-source-categories-national
  28. U.S. Environmental Protection Agency, "RCRA NAICS Lookup," 2026, https://www.epa.gov/enviro/rcra-naics-lookup
  29. White House, "Strengthening Actions Taken to Adjust Imports of Aluminum, Steel, and Copper," 2026, https://www.whitehouse.gov/presidential-actions/2026/04/strengthening-actions-taken-to-adjust-imports-of-aluminum-steel-and-copper-into-the-united-states/
  30. White House, "Further Adjusting the Tariff Regimes for Imports of Aluminum, Steel, and Copper," 2026, https://www.whitehouse.gov/presidential-actions/2026/06/further-adjusting-the-tariff-regimes-for-imports-of-aluminum-steel-and-copper-into-the-united-states/
  31. Bureau of Industry and Security, "Section 232 Steel and Aluminum," 2026, https://www.bis.gov/about-bis/bis-leadership-and-offices/sies/section-232-investigations/section-232-steel-aluminum
  32. Office of Management and Budget, "Buy America Implementation Guidance Update," 2023, https://www.whitehouse.gov/wp-content/uploads/2023/10/m-24-02-Buy-America-Implementation-Guidance-Update.pdf
  33. U.S. Department of Defense, "Defense Federal Acquisition Regulation Supplement: Restriction on Acquisition of Forgings," current regulation, https://www.acquisition.gov/dfars/252.225-7025-restriction-acquisition-forgings/
  34. IACMI/Department of Defense, "Workforce Initiative for Casting and Forging Industry," 2025, https://www.iacmi.org/iacmi-dod-new-partnerships-to-combat-workforce-shortages-in-u-s-casting-and-forging-industry/
  35. U.S. Department of Energy, "Innovative Large Parts Manufacturing to Revolutionize America's Clean Energy Future," 2024, https://www.energy.gov/eere/ammto/articles/innovative-large-parts-manufacturing-revolutionize-americas-clean-energy-future