Steel manufacturers in Pennsylvania
Pennsylvania has 161 steel makers in EPA records, facilities that list codes for iron and steel mill products, pipe, tube and wire. The most are in Emporium, Braddock and Conshohocken. That is 13% of the 1,202 such facilities nationwide, and Pennsylvania ranks first of 44 states.
- Product
- Steel manufacturers
- Facilities
- 161
- State rank
- #1
- NAICS
- 331110 and 3 related codes
- Revised
- November 1, 2026
Facilities in Pennsylvania
These are active facilities in EPA's ECHO database that list a code for iron and steel mill products, pipe, tube and wire. The 40 shown first are the ones with the most EPA program records, which usually means the larger sites.
| Facility | City | What EPA lists |
|---|---|---|
| Accellent Inc/Collegeville Microcoax | Collegeville | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel |
| Arcelormittal Plate LLC - Coatesville Facility | Coatesville | Iron and Steel Mills and Ferroalloy Manufacturing |
| Carpenter Technology Corp | Reading | Iron and Steel Mills and Ferroalloy Manufacturing |
| Ipsco Koppel Tubulars Corp | Koppel | Iron and Steel Mills and Ferroalloy Manufacturing |
| Uss Corp/Edgar Thomson Works | Braddock | Iron and Steel Mills and Ferroalloy Manufacturing |
| Alleima Precision Tube LLC | Scottdale | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel |
| Alexander Mill Services Inc/Stony Creek Plt | Hollsopple | Iron and Steel Mills and Ferroalloy Manufacturing |
| Allegheny Ludlum LLC | Brackenridge | Iron and Steel Mills and Ferroalloy Manufacturing |
| Arcelormittal Plate LLC Conshohocken Facility | Conshohocken | Iron and Steel Mills and Ferroalloy Manufacturing |
| Ellwood Quality Steels Co | New Castle | Iron and Steel Mills and Ferroalloy Manufacturing |
| Jessop Steel LLC | Washington | Iron and Steel Mills and Ferroalloy Manufacturing |
| Arcelormittal Steelton LLC | Steelton | Iron and Steel Mills and Ferroalloy Manufacturing |
| Nlmk Pennsylvania LLC | Farrell | Rolled Steel Shape Manufacturing |
| Standard Steel-Burnham Plant | Burnham | Iron and Steel Mills and Ferroalloy Manufacturing |
| Union Electric Steel Corp | Burgettstown | Iron and Steel Mills and Ferroalloy Manufacturing |
| Allegheny Ludlum Corp | Vandergrift | Iron and Steel Mills and Ferroalloy Manufacturing |
| Wheatland Tube Company - Council | Wheatland | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel |
| Latrobe Specialty Steel Co | Latrobe | Iron and Steel Mills and Ferroalloy Manufacturing |
| Allegheny Ludlum Latrobe Plant | Latrobe | Iron and Steel Mills and Ferroalloy Manufacturing |
| Universal Stainless & Alloy Prod - Bridgeville Facility | Bridgeville | Iron and Steel Mills and Ferroalloy Manufacturing |
| Allegheny Ludlum Bagdad | Leechburg | Iron and Steel Mills and Ferroalloy Manufacturing |
| Superior Tube Collegeville Fac | Collegeville | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel |
| North Amer Hoganas/johnstown Plt | Johnstown | Iron and Steel Mills and Ferroalloy Manufacturing |
| Ipsco Koppel Tubular Corp Ambridge | Ambridge | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel |
| Webco Ind Inc/oil City Tube Div | Oil City | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel |
| Dura Bond Pipe Llc/steelton | Steelton | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel |
| Electralloy Go Carlson - Oil City Facility | Oil City | Iron and Steel Mills and Ferroalloy Manufacturing |
| Salem Tube Mfg | Greenville | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel |
| Ak Steel Corp/butler Works | Butler | Iron and Steel Mills and Ferroalloy Manufacturing |
| Langeloth Metallurgical Co | Langeloth | Iron and Steel Mills and Ferroalloy Manufacturing |
| Lehigh Specialty Melting Inc | Latrobe | Iron and Steel Mills and Ferroalloy Manufacturing |
| Tube Methods Inc/bridgeport | Bridgeport | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel |
| Harsco Metals Bri Llc/braddock | Braddock | Iron and Steel Mills and Ferroalloy Manufacturing |
| Wheatland Tube Council Ave Plt/wheatland Tube LLC | Wheatland | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel |
| Akj Clairton LLC | Clairton | Iron and Steel Mills and Ferroalloy Manufacturing |
| Tube City Ims/slag Processing | Braddock | Iron and Steel Mills and Ferroalloy Manufacturing |
| Handy & Harman Tube Co/east Norriton | Norristown | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel |
| Braeburn Alloy Steel Rolling Mill Fac | Lower Burrell | Iron and Steel Mills and Ferroalloy Manufacturing |
| Wirerope Works Inc | Williamsport | Steel Wire Drawing |
| Heraeus Precious Metals North America Conshohocken LLC | West Conshohocken | Rolled Steel Shape Manufacturing |
Industry codes are reported by facilities to EPA programs and are not checked here. A few listings may be repair shops, distributors or recyclers. How these records work.
Where they are
- Emporium: 5
- Braddock: 4
- Conshohocken: 4
- New Castle: 4
- Johnstown: 4
- Butler: 4
By product code
- Iron and Steel Mills and Ferroalloy Manufacturing (NAICS 331110): 26 of those shown
- Iron and Steel Pipe and Tube Manufacturing from Purchased Steel (NAICS 331210): 11 of those shown
- Rolled Steel Shape Manufacturing (NAICS 331221): 2 of those shown
- Steel Wire Drawing (NAICS 331222): 1 of those shown
All primary metals manufacturing in Pennsylvania: 438 facilities and Census job counts.