General Properties Alloy 347 is a stabilized, austenitic, chromium steel containing columbium which allows for the elimination of carbide precipitation, and, consequently, intergranualr corrosion.Alloy 347is stabilized by the additions of chromium and tantalum and offers higher creep and stress rupture properties than alloy 304 and 304L which may also be used for exposures where sensitization and intergranualr corrosion are of concern. The addition of columbium also allows Alloy 347 to have excellent corrosion resistance, even superior to that of alloy 321.  347H is the higher carbon composition form of Alloy 347 and demonstrates improved high temperature and creep properties. STANDARDS INDUSTEEL TRADEMARKS UNS ASTM EURONORMS EN SUS 347 S34700 347 1.4550 X6CrNiNb18-10 SUS 347 CHEMICAL ANALYSIS (%WEIGHT) C Cr Ni Mo N Others < 0,080 17,5 9,5 - - PROPERTIES 0,2 Y.S. - Rp 0,2min ASTM / EN 0,2 Y.S. - Rp 0,2(2)typical value UTS - Rm min ASTM / EN UTS - Rm(2)typical value EI-A(1)% PREN(4) HOMOLOGATIONS MPa Ksi MPa Ksi MPa Ksi MPa Ksi Last revised 205 30 260 38 515 75 570 83 40 18 Specifications:UNS S34700 Type 347 stainless steel pipe/tube/bar/sheet ect Thinckness 1-30mm Outer diameter 6-630mm Length 6m or as customer's requirement Finish Polished, Pickled,hairline,mirror Shap Round,square, rectangular,oval Technology Seamless,weld Standard JIS, AISI, ASTM, GB, DIN, EN ,etc. MOQ 2 Ton Application decoration, industry, etc. Certificate SGS & ISO Packaging Standard exporting packing