PRODUCTSValve Products

Special Alloy Valve

Special Alloy Valve – Category Overview
Special alloy valves are our most advanced product line and our core competitive advantage. We specialize in investment casting and machining of high-end materials including Super Austenitic Stainless Steel, Titanium, Zirconium, Nickel, Hastelloy, Inconel, Monel, Duplex, and Nickel Aluminum Bronze.

FAQ

Material Coverage

Super Austenitic: 254 SMO / 904L / AL-6XN
Titanium: Grade 2 / Grade 5 / Grade 12
Zirconium: Zr 702 / Zr 705 / R60702
Nickel: Nickel 200 / 201
Hastelloy: C276 / B3 / C22
Inconel: 625 / 718 / 825
Monel: 400 / K500
Duplex: 2205 / 2507
Nickel Aluminum Bronze: C95800 / C95500
Alloy 20

Standards & Certifications

Valve Types: Ball / Check / Globe / Gate / Butterfly (customized per requirement)
Casting Processes: Vacuum Casting / Investment Casting (selected per material and size)
Design Standards: API 6D / API 600 / API 609 / ASME B16.34 / GOST / DIN / JIS
Certificates: API 6D, API 600, API 609, CE, EAC, ISO 9001
Applications: Seawater cooling, offshore engineering, Flue Gas Desulfurization (FGD), acetic/sulfuric/phosphoric acid service, high-temperature oxidation environments, nuclear power, aerospace

Production Highlights

Vacuum casting ensures special alloy casting density ≥99.5%, with internal defects well below ASTM E446 Grade I
Independent casting process parameters for each special alloy (pouring temperature, shell preheat, cooling rate)
Spectrographic analysis per melt batch with composition deviation controlled within ±5% of standard range
100% UT/RT inspection on all critical orders
Nickel Aluminum Bronze valves specifically developed for seawater with corrosion rate <0.05mm/year