YUHONG GROUP CO.,LIMITED
ASTM A789 S31803 Seamless Duplex Steel Tube,Duplex Steel Heat Exchanger Tube A789 2205,Duplex Steel Seamless Tube A789 UNS S31803 for Heat Exchanger
86-574-88013900
YUHONG GROUP CO.,LIMITED
ASTM A789 S31803 Seamless Duplex Steel Tube,Duplex Steel Heat Exchanger Tube A789 2205,Duplex Steel Seamless Tube A789 UNS S31803 for Heat Exchanger
86-574-88013900
Heat Exchange Tube ( 53 )Boiler Tube ( 37 )Nickel Alloy Steel Pipe ( 21 )Nickel Alloy Steel Tube ( 16 )Duplex Steel Pipe ( 10 )Duplex Steel Tube ( 4 )Stainless Steel Pipe ( 18 )Stainless Steel Tube ( 14 )Steel Flange ( 30 )Steel Fitting ( 25 )Special Steel Products ( 14 )Model No.: ASTM A789 S31803 Seamless Duplex Steel Tube
Brand: YUHONG
Packaging: Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Productivity: 1500 Tons Per Month
Transportation: Ocean,Land,Air
Place of Origin: CHINA
Certificate: ABS, LR, GL, DNV, NK, TS, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Payment Type: T/T,L/C,Western Union
Seamless Duplex Stainless Steel Tubes ASTM A789 S31803 (2205 / 1.4462), UNS S31803 For Heat Exchanger and Boiler.
Yuhong Holding Group is one of the largest Procurement Engineering and Contracting Group companies in China, 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.
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
Product Categories : Heat Exchange Tube > Duplex Stainless Steel Heat Exchanger Tube
