Products supplied
- Pipes, fittings and flanges
- Plates, sheets and coils
- Bars and forgings
- Fasteners
- Custom fabricated components
Corrosion-resistant and heat-resistant alloy products for demanding chemical, marine and high-temperature service.

International references for Special & Non-Ferrous Alloys. Select the required specification system, then complete your enquiry. Options are available for technical review; compliance and supply capability require written confirmation.
Selecting several references requests a compliance review. It does not establish equivalence or dual certification. Hidden selections remain in your enquiry.
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Class, PN and JIS K are separate rating systems; no automatic conversion or drilling compatibility is implied. NPS / DN is nominal, not actual OD. Similar grades are comparison candidates only. ASTM / ASME and EN designations are not automatic substitutes.
Certificates, inspection, IBR and project approvals are separate requirements. An ISO 9001 quality-system certificate is not a product approval. Current issuer editions may differ from the edition required by your contract.
STEEL GEMS — INTERNATIONAL SPECIFICATION ENQUIRY Product: Special & Non-Ferrous Alloys Requested references: To confirm Exact grade / UNS / delivery condition: To confirm Required edition / addenda: To confirm Size, actual OD, wall / schedule and units: To confirm Rating system and value (Class / PN / JIS K / Table): To confirm Type, construction, connection, facing / thread: To confirm Quantity with unit: To confirm Documents / tests requested: To confirm Delivery city / country / ZIP / port: To confirm Project notes / origin restrictions / service conditions: To confirm Please review applicable scope, compatibility, material origin, manufacturing route, compliance, availability and commercial terms. This is an enquiry, not an engineering approval.
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Reference summaries only. Confirm full scope and required edition with the issuer and project specification.
Open a permanent technical page for specifications, supply range, applications and inspection options.
UNS S31803/S32205 duplex piping products combining high strength with resistance to chloride stress-corrosion cracking.
View specification →ASTM A790/A815/A182 · UNS S32750Super Duplex 2507 Pipes, Fittings & FlangesUNS S32750 super-duplex products for severe chloride, offshore, desalination and high-strength corrosion service.
View specification →UNS N06625 · ASTM B444/B366/B564Inconel 625 Pipes, Fittings & FlangesNickel-chromium-molybdenum alloy products for severe corrosion, high strength and demanding marine or chemical service.
View specification →UNS N10276 · ASTM B622/B366/B564Hastelloy C276 Pipes, Fittings & FlangesUNS N10276 nickel-molybdenum-chromium products for highly corrosive chemical and pollution-control environments.
View specification →Steel Gems supports material certification, heat-number traceability, NABL laboratory testing, NDT and third-party inspection for Special & Non-Ferrous Alloys when required by the purchase specification.