347 stainless steel sheet UNS S34700 coil suppliers

347 stainless steel sheet UNS S34700 coil is made of niobium stabilized austenite structure as the core, with a carbon content of ≤ 0.08%. It has high corrosion resistance and welding performance, and is suitable for harsh environments such as petrochemicals and aviation. The supplier controls the thickness tolerance of ± 0.02mm through cold rolling process, combined with solution treatment (1065 ℃ water cooling) to optimize the uniformity of the structure, ensuring that the surface smoothness Ra of the coil is ≤ 0.8 μm, meeting the high-precision processing requirements.

Domestic suppliers adopt full process controlled rolling technology to provide coil materials with a width of 1000-2000mm and a thickness of 0.5-12mm, which have passed ISO 9001 certification and ASTM A240 standard testing. Its products undergo intergranular corrosion testing (ASTM A262-E method) and high-temperature oxidation testing (800 ℃/100h weight gain ≤ 0.1mg/cm²) to ensure long-term stability of high-temperature components.

For fields such as nuclear power and food machinery, 347 stainless steel suppliers can customize mirror (8K) or anti fingerprint (HL) surface rolls, and provide deep processing services such as laser cutting and slitting. Through international certification systems such as JIS and EN, our products are widely used in the manufacturing of heat exchanger shells, sterile tanks, and new energy battery casings, meeting the demands of the global high-end equipment supply chain.‌