Hunan Hemway Steel Co., Ltd.
Ferrite-austenite duplex [Super duplex] stainless steel seamless is our company’s main
products，yearly output is above 1000 ton. Nationally, our company has the most various kinds of Ferrite-austenite duplex stainless steels. We have the advanced Solid Solution Device controlled by PLC. It can stably control the heat treatment temperature for all the products and guarantee the ideal duel phase scale and distribution which can get good results from ASTM A923, ASTM G48 and ASTM E262 inspections.
Main Products Grade
|
General standard |
Grade |
Performance |
|
GB/T21833-2008/ASTM A789 / 789M |
S32101 |
Low-nickel, high-nitrogen design、cost-effective |
|
S32304 |
Twice the mechanical strength of 316L stainless steel、Easy to weld |
|
|
UNS S31803(S32205) |
resistance to chloride stress corrosion cracking、high strength |
|
|
S31500 |
resistance to chloride stress corrosion、excellent resistance to sulfuric acid corrosion |
|
|
S32750 |
top-level pitting/crevice corrosion resistance（extremely high strength (σb≥730MPa)） |
|
|
S32760 |
erosion-corrosion resistance、resistance to acidic media |
|
|
S32707 |
SCC resistance (in acidic environments); ultra-high pressure resistance |
|
|
S31260 |
excellent weldability、high-temperature stability |
Size:(Outside Diameter) 3.175-325mm，(Wall Thickness) 0.5-20mm