Global Leader in Nickel-Based Superalloys
Precision-engineered Hastelloy, Inconel, Monel, and Duplex Stainless Steel solutions for extreme environments.
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Precision-engineered Hastelloy, Inconel, Monel, and Duplex Stainless Steel solutions for extreme environments.
Dongtai Zhonghai Super Alloy Co., Ltd., operating as jsalloy.com, is a high-technology alloy manufacturer located in Dongtai City — the stainless steel hub of China. We specialize in the research, development, and production of advanced nickel-based superalloys, including high-temperature alloys, corrosion-resistant alloys, and specialty copper alloys.
Our fully integrated production line includes vacuum induction melting, electroslag remelting, precision forging, heat treatment, and CNC machining — ensuring complete control over quality and performance from raw material to finished product.
Learn more about our companyWe offer a comprehensive portfolio of high-performance alloy products in various forms and specifications, engineered for reliability in extreme industrial environments.
Precision-forged bars in Inconel, Hastelloy, Monel, and Duplex Stainless Steel. Available in round, square, and hexagonal profiles.
Hot-rolled and cold-rolled plates for pressure vessels, reactors, and structural components in corrosive environments.
High-integrity flanges for piping systems in oil & gas, chemical, and petrochemical industries.
Custom open-die and closed-die forgings for valves, pumps, and high-pressure components.
Seamless and welded tubes for heat exchangers, condensers, and high-temperature applications.
Bolts, nuts, screws, and washers in superalloys for extreme temperature and corrosive conditions.
TIG, MIG, and SAW wires for joining high-performance alloys with superior corrosion resistance.
High-resistance alloys for heating elements in industrial furnaces and thermal processing.
Our alloys are trusted in the most demanding environments across critical industries.
Reactors, piping, valves, and heat exchangers exposed to aggressive chemicals and high temperatures.
Subsea components, downhole tools, and sour gas service equipment with NACE MR0175 compliance.
FCC units, reformers, and hydroprocessing reactors requiring high creep and oxidation resistance.
Sanitary processing equipment with high corrosion resistance and compliance with hygiene standards.
We specialize in nickel-based superalloys including Hastelloy, Inconel, Monel, Incoloy, Duplex Stainless Steel, Nimonic, and specialty copper and electrothermal alloys.
Yes, we offer full customization including non-standard dimensions, special heat treatments, and OEM forging services.
Yes, we support sample orders, wholesale direct, and complete payment solutions for all product types.
Our products comply with ASTM, ASME, DIN, and NACE standards. We provide MTRs, PMI reports, and full traceability documentation.
Connect with our technical team for quotes, samples, or engineering support.
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