Shanghai Hongguan Stainless Steel Products Co., Ltd. develops, forges and supplies high-temperature and corrosion-resistant alloy piping components from Qingpu District, Shanghai.
We work with steel mills in China, Europe, the United States and Japan to keep nickel-based alloys, nickel–cobalt heat-resistant alloys, highly corrosion-resistant alloys, super austenitic stainless steels, titanium and pure nickel available in the forms our customers need — flange, fitting, fastener, valve, forging, bar and plate.
Products are manufactured to GB, ASTM/ASME, EN and JIS requirements, and are used in nuclear power, petrochemical, aerospace, high-end equipment, desalination, marine engineering, environmental protection and new-energy projects.
Our own workshop and laboratory sit in the same industrial park, which is what allows us to hold a delivery date: incoming material is verified on arrival, the process is controlled during forging and machining, and every item is inspected before it is packed.
Forging, heat treatment, machining and testing are controlled in one place, which is what keeps a delivery date honest.
Open-die and closed-die forging, ring rolling, upsetting and punching for flanges, fittings and custom shapes.
CNC turning and milling, face and groove machining to RF, FF, MFM, TG and RJ profiles, bolt-hole drilling to template.
Solution annealing, normalising, quenching and tempering, with charted cycles.
OES, C/S analysis, tensile, impact, hardness, metallography, UT, PT and hydrostatic testing.
We quote what we can make, and we make what we quote. If a grade or a size is outside our range, we say so before the order, not after.
Long-term supply beats a single margin. We keep stock for repeat customers and hold prices where the material market allows.
A flange is a simple part until it leaks at 400 °C. Tolerances, face finish, heat treatment and marking are treated as engineering, not paperwork.
Quotes within one business day. Send grade, size, pressure class, face type and quantity — a drawing works better than a description.
