| Standard: | ASTM A789， ASME SA789， ASTM A790 ， ASME SA790 ， ASTM A928， ASME SA928 | Material: | UNS S31803 |
|---|---|---|---|
| Type: | Welded， Seamless | Outer Diameter: | 6mm-630mm Or Customized |
| Thickness: | 0.1mm-60mm | Length: | 3-6m Or As Customized |
| NDT: | ET/UT/HT | Application: | Industry，construction，boiler，oil And Gas，Oil Gas Sewage Transport |
| High Light: | ASME A789 SMLS Tube， S31803 SMLS Tube， S32205 Duplex Stainless Steel Pipes | ||
ASME A789 S31803 SMLS Tube Size: 25.4*1.24*11800MM Duplex Stainless Steel Tubes
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. 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， ISO9001-2015， ISO 14001-2004.
UNS 31803 (F51)， UNS 32205 (F60) Alloy 2205， UNS S32550 (F61)， UNS S 32750 (F53)， Alloy 2507 and UNS 32760 (F55)
Standards: ASTM/ASME A789/SA789， A790/SA790，A450，A530
Material: UNS S31803(Cr22Ni5Mo3/1.4462)/2205，UNS S32750(1.4410)，UNS S31500(Cr18NiMo3Si2)，
UNS32760(1.4501)
Chemical Composition
| Grade | C max | Si max | Mn max | P max | S max | Cr | Ni | Mo | N |
| UNS S32750 | 0.030 | 0.8 | 1.2 | 0.030 | 0.015 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 |
| UNS S31803 | 0.030 | 1.0 | 2.0 | 0.020 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
| UNS S31500 | 0.030 | 1.0 | 1.2-2.0 | 0.030 | 0.030 | 18.0-19.0 | 4.5-5.5 | 2.5-3.5 | 0.05-0.10 |
Physical Properties
| Grade | Y.S.MPa min | T.S.Mpa min | Elongation % | Hardness HRC |
| UNS S32750 | 550 | 800 | 15 | 20 |
| UNS S31803 | 450 | 620 | 25 | 20 |
| UNS S31500 | 440 | 630 | 30 | 20 |
Duplex Stainless Steel Pipe Application:
Chemical processing， Transport and Storage.
Oil and gas exploration and offshore rigs.
Oil and gas refining.
Marine environments.
Pollution control equipment.
Pulp and paper manufacturing
Chemical process Plant
