Type 347 Stainless Steel is a chromium nickel stainless steel which has been modified by the addition of columbium and tantalum. The main advantage of this is an excellent resistance to intergranular corrosion which is common to other austenitic stainless steels following exposure to temperatures of 800° to 1500°F. Type 347 Stainless Steel has about the same general corrosion resistance as Type 302. Type 347 Stainless Steel is generally used where corrosive conditions are severe, such as aircraft exhaust stacks, manifolds and ring collectors. Type 347 Stainless Steel is also used for heavy welded assemblies which cannot be annealed after welding or where the operating conditions cause exposure within the temperature range between 800° to 1500°F.
Typical Mechanical PropertiesMaterialYield Strength (ksi)Tensile Strength (ksi)% ElongationHardness HB347 Stainless Steel Sheet (Sol Trtd) AMS 55122570-10540–347 Stainless Steel Bar (Sol Trtd) AMS 5646–––255 max
Availability Type 347 Stainless Steel is available in Stainless Steel Flanges, Stainless Steel Pipes, Stainless Steel Bars (Stainless Steel AngleBars, Stainless Steel Flat Bars, Stainless Steel Hex Bars, Stainless Steel Round Bars, Stainless Steel Square Bars), Stainless Steel Tubes , Stainless Steel Pipe Fittings. Specifications 347 / 347H AMS 5512 stainless steel flanges AMS 5556 Seamless/ welded stainless steel tubes AMS 5558 Welded /thin wall stainless steel tubes AMS 5571 Seamless stainless steel tubes AMS 5575 Welded stainless steel tubes AMS 5646 stainless steel flanges AMS 5654 stainless steel flanges (aircraft quality) MIL-T-8606 Seamless stainless steel tubes MIL-T-8606 Welded stainless steel tubes MIL-T-8808 Seamless stainless steel tubes MIL-T-8808 Welded stainless steel flanges MIL-S-6721 ASTM A240 / ASME SA240 ASTM A167 / ASME SA167 ASTM A276 / ASME SA276 ASTM A314 / ASME SA314 ASTM A479 / ASME A479 BS 2S130 BS 2T66 stainless steel flanges BS T72 stainless steel flanges BS 970; 347S17 EN58F / EN58G MSRR 6522 MSRR 6524 WS 1.4544 WS 1.4546 WS 1.4550 WS 1.5446*Tube AFNOR Z6CNNb18-11 UNS S30347
Applications
Oil Refineries
Fluid catalytic cracking units (FCC)
Stainless Steel Pipes
Recuperator stainless steel pipe fittings
Especially where temperatures exceed 550°F and resistance to sulfidation is needed
Fired heater stainless steel tubes
Distributor trays and thermowells
Equipment in and around reactors (good resistance to polythionic acid)
Stainless Steel Flanges
About wilsonpipeline Pipe Industry Co., Limited
Established in 2008, wilsonpipeline Pipe Industry Co., Limited is a professional organizer and one-stop-shop supplier for steel piping system products, including stainless steel pipes and stainless steel tubes, stainless steel forged flanges and butt-welding stainless steel pipe fittings, stainless steel pipe fittings, stainless steel elbows, stainless steel tees, stainless steel reducer, stainless steel stub end, stainless steel gaskets, stainless steel fasteners, stainless steel valves, Sanitary Services etc. in China. We have devoted to providing the best solutions of steel materials and industrial equipment for our respected customers. We supply not only commonly used stainless steel materials (SS304/L,SS316/L,SS321), but also duplex and super duplex steel 1.4547, 1.4462, 1.4410 (S31254,S31803,S32750,S32760), special austenite stainless 310S, 347H, 347, 317L, 904L… wilsonpipeline products are widely used in Shipbuilding, Nuclear power, Marine engineering, Petroleum, Chemical, Mining,Sewage treatment, Natural gas and Pressure vessels and other industries.
wilsonpipeline products are according to national standard GB/T12459, GB/T13401, U.S. standard ANSI/ASME B16.9, ANSI/ASME B16.5/B16.47, ANSI/ASME B16.11, ANSI/ASME B36.19M/ B36.10M, ASME B16.20,British standard BS,Germany standard DIN,Japan standard JIS…, The purpose built nonstandard or special use products as per customer’s demand, we will try our best to satisfy it.
To be a reliable supplier, providing high quality products,very best service and support, wilsonpipeline will do that always!
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