Steel Pipe & Tubes

Steel Pipe & Tubes producers classified under SIC 3317 forge welded and seamless line pipe, mechanical tubing, OCTG, and coated or galvanized products for oil and gas operators, EPC contractors, utilities, industrial OEMs, and infrastructure builders. Customers rely on high-spec materials that meet API/ASTM standards, corrosion resistance, and tight tolerances for pipelines, power generation, automotive, and construction uses. Major risks include volatile scrap and iron ore costs, energy-intensive melting and rolling subject to emissions and safety regulations, trade remedies such as Section 232 tariffs and anti-dumping duties, and project delays tied to permitting or capital spending cycles. In 2024-2025, demand is shaped by U.S. infrastructure and LNG buildouts, pipeline replacements, hydrogen-ready and carbon-capture networks, and reshoring that favors domestic mills; mills are investing in automation, advanced coatings, and diversified sourcing to manage geopolitical and freight pressures. For the latest company moves and disclosures, view SEC filings on Earnings Feed.

Source: Earnings Feed research · Nov 23, 2025

• Accepted (ET)
• Oct 8 14:25SCHEDULE 13G/ANWPX
  NWPX Infrastructure, Inc.8.9 KB
  SEC(opens sec.gov)
• Oct 7 09:006-KLUD
  Luda Technology Group Ltd12.0 KB
  SEC(opens sec.gov)
• Oct 5 16:21144NWPX
  NWPX Infrastructure, Inc.10.5 KB
  SEC(opens sec.gov)
• Oct 1144NWPX
  NWPX Infrastructure, Inc.8.4 KB
  SEC(opens sec.gov)
• Sep 28144NWPX
  NWPX Infrastructure, Inc.10.4 KB
  SEC(opens sec.gov)
• Sep 21144NWPX
  NWPX Infrastructure, Inc.9.2 KB
  SEC(opens sec.gov)
• Sep 21144ATI
  ATI INC7.9 KB
  SEC(opens sec.gov)
• Sep 14144NWPX
  NWPX Infrastructure, Inc.9.1 KB
  SEC(opens sec.gov)
• Sep 14144ATI
  ATI INC7.9 KB
  SEC(opens sec.gov)
• Sep 9144NWPX
  NWPX Infrastructure, Inc.5.4 KB
  SEC(opens sec.gov)
• Sep 8144NWPX
  NWPX Infrastructure, Inc.8.4 KB
  SEC(opens sec.gov)
• Sep 8144NWPX
  NWPX Infrastructure, Inc.4.5 KB
  SEC(opens sec.gov)
• Sep 8144ATI
  ATI INC7.3 KB
  SEC(opens sec.gov)
• Sep 86-KLUD
  Luda Technology Group Ltd25.8 KB
  SEC(opens sec.gov)
• Sep 3144NWPX
  NWPX Infrastructure, Inc.7.3 KB
  SEC(opens sec.gov)
• Sep 2144NWPX
  NWPX Infrastructure, Inc.6.6 KB
  SEC(opens sec.gov)
• Sep 2144ATI
  ATI INC4.4 KB
  SEC(opens sec.gov)
• Sep 26-KLUD
  Luda Technology Group Ltd30.3 KB
  SEC(opens sec.gov)
• Aug 31144NWPX
  NWPX Infrastructure, Inc.6.5 KB
  SEC(opens sec.gov)
• Aug 31144ATI
  ATI INC5.1 KB
  SEC(opens sec.gov)
• Aug 26144NWPX
  NWPX Infrastructure, Inc.4.4 KB
  SEC(opens sec.gov)
• Aug 24144NWPX
  NWPX Infrastructure, Inc.5.3 KB
  SEC(opens sec.gov)
• Aug 24144ATI
  ATI INC4.5 KB
  SEC(opens sec.gov)
• Aug 17144NWPX
  NWPX Infrastructure, Inc.5.2 KB
  SEC(opens sec.gov)
• Aug 17144ATI
  ATI INC9.7 KB
  SEC(opens sec.gov)
• Aug 10144ATI
  ATI INC4.4 KB
  SEC(opens sec.gov)
• Aug 10144NWPX
  NWPX Infrastructure, Inc.5.0 KB
  SEC(opens sec.gov)
• Aug 610-QATI
  ATI INC11.4 MB
  SEC(opens sec.gov)
• Aug 68-KATI
  ATI INC1.5 MB
  SEC(opens sec.gov)
• Aug 4144NWPX
  NWPX Infrastructure, Inc.4.6 KB
  SEC(opens sec.gov)
• Jul 316-KLUD
  Luda Technology Group Ltd31.1 KB
  SEC(opens sec.gov)
• Jul 3010-QNWPX
  NWPX Infrastructure, Inc.6.1 MB
  SEC(opens sec.gov)
• Jul 298-KNWPX
  NWPX Infrastructure, Inc.445.2 KB
  SEC(opens sec.gov)
• Jul 29SCHEDULE 13G/ANWPX
  NWPX Infrastructure, Inc.11.0 KB
  SEC(opens sec.gov)
• Jul 28144ATI
  ATI INC8.1 KB
  SEC(opens sec.gov)
• Jul 176-KHUDI
  Huadi International Group Co., Ltd.23.5 KB
  SEC(opens sec.gov)
• Jul 176-KLUD
  Luda Technology Group Ltd31.8 KB
  SEC(opens sec.gov)
• Jun 296-KHUDI
  Huadi International Group Co., Ltd.6.3 MB
  SEC(opens sec.gov)
• Jun 186-KLUD
  Luda Technology Group Ltd31.2 KB
  SEC(opens sec.gov)
• Jun 186-KLUD
  Luda Technology Group Ltd15.6 KB
  SEC(opens sec.gov)

• ATI INCCIK 0001018963ATI
• Atkore International Holdings Inc.CIK 0001521722
• DAYTON SUPERIOR CORPCIK 0000854709
• Huadi International Group Co., Ltd.CIK 0001791725HUDI
• IPSCO TUBULARS INCCIK 0001262719
• LONE STAR TECHNOLOGIES INCCIK 0000791348
• Luda Technology Group LtdCIK 0001984124LUD
• MAVERICK TUBE CORPCIK 0000869087
• NIAGARA CORPCIK 0000710976
• NWPX Infrastructure, Inc.CIK 0001001385NWPX
• RathGibson IncCIK 0001363346
• SIDERCA SAICCIK 0001139566

SIC code

3317

Total issuers

16

Recent filings

40

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