• www.ssm-pff.com ,an export and manufacturer for special materials pipes, tubes, fittings, materials including nickel-based alloy, austenitic, ferritic, duplex stainless steel
  • stainless steel seamless pipe,duplex stainless steel seamless tubes, nickel alloy, nickel base alloy seamless tube and pipe,butt-welding fitting, elbow, tee, cross, flange,valve.
  • Shangdun special materials co.,ltd is glable special alloy and stainless steel products company, which is international piping system material manufacturer and upplier, office located in Shanghai. In glable business, we have sucess to entrying North America, Europea, East Asia, Austrialia,Africa market.Our focus on natural gas transportation,offshore unit,chemical refining,nuclear power,shipbuilding,steel structure,machining and so on piping system engineering. 

We have strong resources integration, production and processing base are located in Shanghai and Jiangshu province, The factories in Shanghai and Jiangsu,which have vacuum smelting, non-vacuum smelting, horizontal continuous casting, forging, heat treatment and production lines advanced in the industry, and has international advanced technology and complete inspection means. Produces focus on : nickel base alloy,cobalt base alloy,iron base alloy,austenitic stainless steel,super austenitic stainless steel,duplex and super duplex stainless steel,high alloy material products; type are bars,pipes,tubes,fittings,flanges,which are widely used in metallurgy,cars,thermal power, nuclear power, petro-chemical, aviation and aerospace, rail transportation , paper industry,water industry and so on.

Material and size as follows: Nickel based Alloy : ASTM SB163, SB165, SB444, SB622, SB407, SB535, SB677, SB668, SB729,Inconel 600,601,625,670,690,718,X-750;Inconel 800,800H/HT,825,840,901,926,330,20;Hastelloy C-276
Super stainless steel: 904L,254MO
Duplex/Super Duplex UNS S31803,S32205,S32750,S32760, ASTM A/SA312, A/SA213, A/SA269, EN10216-5
Austenitic Pipe & Tube Standard:GOST9941-81, GOST5632-72 .ASTM/ASME A312/SA312, A269/SA269, ASTM A511, EN10216-5,DIN17458-85,DIN17456-85,JIS G3459,JISG3463,JISG3448,JISG3446,304,304L,316,316L,316Ti,310S,309S,321,321Ti,347

Oil and Gas
Cement and Minerals
Fertilizers and Petrochemicals
Metallurgy and cars industry
Mechanical industry
Wastewater Treatment and other water industry
paper industry,
aviation and aerospace
Transmission and rail transportation
thermal power and other power Generation 
nuclear power
Environmental and Safety


our strong supporting layer and our sales’ professional skills will help customers to supply efficient and timely packaged supporting serivces. We have some stock bars ,pipes, fittings .Our quality is always satisfied by our clients, we are strictly controling the whole production and testing. We will always adhere to the policy of
  • Hot deformation characteristics and forging process of corrosion resistant nickel-base C-276 alloy

    The flow stress behaviors and microstructure characteristics of C-276 alloy were investigated by isothermal compression tests in the temperature range of 1100-1250 °C and strain rate range of 0.1-10 s-1 on Gleeble 1500 thermo-simulation machine to determine forging process range. The strain hardening exponent and deformation activation energy were evaluated by linear regression analysis, and the flow stress constitutive relationship of C-276 alloy during hot compression was established. The results showed that dynamic recrystallization occurred in evidence during hot compression of C-276 alloy in the present experiment condition. The flow stress can be represented by a Zenner-Hollomon parameter in the hyperbolic sine type equation. The suitable processing temperature range for C-276 alloy is 1175∼1250 °C, and strain rate range from 0.1s-1 to 10s-1.



    Post time: Mar-22-2017

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