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ASTM A789 / ASTM A790 SUPER DUPLEX STEEL S31803, S32205, S32750, S32760, S31254 RAW MATERIAL YONGXING SPECIAL STEEL

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ASTM A789 / ASTM A790 SUPER DUPLEX STEEL S31803, S32205, S32750, S32760, S31254 RAW MATERIAL YONGXING SPECIAL STEEL

Country/Region china
City & Province ningbo zhejiang
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Product Details

ASTM A789 / ASTM A790 SUPER DUPLEX STEEL S31803, S32205, S32750, S32760, RAW MATERIAL YONGXING SPECIAL STEEL

 

 

YUHONG SPECIAL STEEL deal with  Austenitic Stainless Steel, Nickel Alloy Steel(Hastelloy , Monel, Inconel, Incoloy ) seamless  and welded  pipe and tube already more than 25 years, every year sell more than 80000 tons of steel  pipe and tube. Our client already cover more than 45 countries, Like Italy, UK, Gernmany, USA, Canada, Chile, Colombia, Saudi Arabia,  Korea, Singapore, Austrial, Poland, France , ....And our group branch company and factory have been already approved by :ABS, DNV, GL, BV, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2008, ISO 14001-2004. 

 

 

Duplex Stainless Steel have a structure that contains both ferrite and austenite. Duplex alloys have higher strength and better stress corrosion cracking resistance than most austenitic alloys and greater toughness than ferritic alloys, especially at low temperatures. The corrosion resistance of duplex alloys depends primarily on their composition, especially the amount of chromium, molybdenum, and nitrogen they contain.

 

Standard: ASTM/ASME A/SA789, A/SA790, A/SA928, DIN17456/17458, EN10216-5. After negotiation, we can supply pipe with customer's special requirement.

Material Grade: Chemical Composition

UNSENDINC %Cr%Ni%Mo%N%Other %
S318031.4462X2CrNiMoN22-5-30.030max21.0-23.04.5-6.52.5-3.50.08-0.20       /
S322051.4462X2CrNiMoN22-5-30.030max22.0-23.04.5-6.53.0-3.50.14-0.20       /
S321011.4162 0.040max21.0-22.01.35-1.700.10-0.800.20-0.25Cu 0.10-0.80
S32304  0.030max21.5-24.53.0-5.50.05-0.600.15-0.20Cu 0.05-0.60
S327501.4410X2CrNiMoN25-7-40.030max24.0-26.06.0-8.03.0-5.00.24-0.32Cu 0.50max
S32760  0.050max24.0-26.06.0-8.03.0-4.00.20-0.30Cu 0.50-1.00

 

Mechanical Property:

 

UNSTensile Strength
Min, Mpa
Yield Strength
Min, Mpa
Elongation in 2 in Or 50mm Min, %Hardness Max,
HRC
S318036204502530
S322056554852530
S321017005303030
S323046904502530
S327508005501532
S327607505502532

 

 

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