Pipe Stainless Steel Duplex 2205 ASTM A789 Seamless Pipe UNS S31803 Stainless Steel Tube
UNS S31803 duplex stainless steel stockholders and suppliers, delivering to the whole of the UK. West Yorkshire Steel are suppliers of UNS S31803, a chromium nickel molybdenum austenitic ferritic grade. It combines improved resistance to stress corrosion cracking, pitting, crevice corrosion and high strength in comparison with other stainless steel grades. UNS S31803 grade duplex resists chloride environments and sulphide stress corrosion. It is approximately double the yield strength of standard austenitic stainless steel grades. As with other duplex stainless steel specifications oxidation resistance is good at high temperature, though it is prone to embrittlement when exposed to temperatures above 300°C and is prone to embrittlement at 475°C when exposed for 2 hours only. It is also subject to embrittlement between 370-540°C when exposed over a longer period.
| Stainless steel pipe |
| Material | 201,202,303, 303Cu,304,304L,316,316L,310S,316Ti,321,430,904L,etc |
| Standard | ASTM,AISI,SUS,JIS,EN,DIN,GB,ASME,etc |
| Surface | Black,bright,roungh turned,polishing,blasting,grinding,centreless ground,pickled,etc |
| Type | hot rolled and cold rolled |
| Stainless steel round pipe/tube | Wall thickness | 1mm-150mm(SCH10-XXS) |
| Outer diameter | 6mm-2500mm(3/8''-100'') |
| Stainless steel square pipe/tube | Wall thickness | 1mm-150mm(SCH10-XXS) |
| Outer diameter | 4mm*4mm-800mm*800mm |
| Stainless steel rectangular pipe/tube | Wall thickness | 1mm-150mm(SCH10-XXS) |
| Outer diameter | 6mm-2500mm(3/8''-100'') |
| Length | 4000mm,5800mm,6000mm,12000mm, or as required |
MTSCO is a leading manufacturer who is specialized in stainless steel seamless pipes , bright
annealed tubes , seamless coiled tubing etc basic products . We also have duplex stainless steel tubes and
pipes , nickel alloy tubes and pipes etc . MTSCO has the most advanced producing and testing
equipment. We can totally satisfy your requirement .
According to standard very strictly , duplex steel tubes which produced by us always have correct OD and WT
tolerance . And they have more perfect corrosion ability .
ASTM A789 / A789M
| UNS Designation | T.S. Min , Ksi [Mpa] | Y.S. Min , Ksi [Mpa] | Elongation Min % | Hardness, Max |
| S32750 | 116 [800] | 80 [550] | 15 | 32 |
| S32760 | 109 [750] | 80 [550] | 25 | … |
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2205 Astm A789 Seamless Duplex Steel Tube Pipe Uns S31803 Images
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