| Material: | S31803， S32205， S32750， S32760， S31254 | Size: | OD:3MM TO 530MM ，WT:0.2MM TO 60MM， L:MAX 50M |
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| Standard: | ASTM A789/790， ASME SA789/790 | NDT TEST: | Eddy Current Test， Hydrostatic Test， UT， IGC， Grain Size Test ， … |
| High Light: | duplex steel pipes， welded steel pipe | ||
ASTM A789 / ASTM A790 SUPER DUPLEX STEEL S31803， S32205， S32750， S32760， RAW MATERIAL YONGXING SPECIAL STEEL
TONG CHUANG 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. |
Material Grade: Chemical Composition
Mechanical Property:
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