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ASTM A789、 A790 SUPER DUPLEX STEEL SEAMLESS TUBING S31803 , S32205 , S32750 , S31254 (254MO)

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ASTM A789、 A790 SUPER DUPLEX STEEL SEAMLESS TUBING S31803 , S32205 , S32750 , S31254 (254MO)

Country/Region china
City & Province ningbo zhejiang
Categories Metal Casting Machinery
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Product Details

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

 

CON TODO GUSTO PARA ATENDER CON LENGUA ESPAÑOLA SI TEINEN CUALQUIER INQUIERTUD

 

 

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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