Astm A276 347 Din 14541 04 Flat Ss 304 316 Forged Stainless Steel Round Bar
Our 347 stainless steel bars are extremely resistant to prolonged heat and corrosion, making them ideal for power generation, engines, welded fabrication and other high temperature applications. Also known as UNS S34700 bars, these 347 stainless steel bars have superior creep and stress rupture properties compared to other grades such as 304 stainless steel, with excellent mechanical properties.
347 Stainless Steel Bar, UNS S34700 Round Bar, Grade 347 Round Bar
347 Stainless Steel is an austenitic stainless steel that contains chromium and nickel. UNS S34700 Round Bar is stabilized by a columbium and tantalum combination. The additions of these elements promotes improved inter-granular corrosion resistance. 347 stainless is non magnetic and has similar corrosion resistance to 304 stainless steel. 347 stainless steel bar, also known as UNS S34700 and Grade 347, is an austenitic stainless steel made of .08% maximum carbon, 17% to 19% chromium, 2% maximum manganese, 9% to 13% nickel, 1% maximum silicon, traces of phosphorus and sulfur, 1% minimum to 10% maximum columbium and tantalum with the balance of iron.
ASME SA 276/479 Stainless Steel 347 Hexagon Bars is advantageous for high temperature service because of its good mechanical properties; 1.4550 Round Bar also has excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800° to 1500° F. SS DIN 1.4550 Bar is similar to Grade 321 with respect to intergranular corrosion which is achieved through the use of columbium as a stabilizing element to maximize this feature. Grade 347 can not be hardened through heat treating, but elevated properties may be obtained through cold reduction. In strongly oxidizing environments 347 offers slightly better resistance to corrosion to 321. Depending on the form, plate, sheet or bar, the grain size and amount of carbon could possibly meet the 347H and 347S requirements.
347/347H STAINLESS STEEL ROUND BAR EQUIVALENT GRADES
STANDARD | UNS | WNR. | JIS | EN |
SS 347 | S34700 | 1.4550 | SUS 347 | X6CrNiNb18-10 |
SS 347H | S34709 | 1.4961 | SUS 347H | X6CrNiNb18-12 |