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Specifications

Seamless Duplex Stainless Steel Pipes, ASTM / ASME A789 / SA789, A790 / SA790, A450, A530:
Delivery Time: 30days->
Certification:ABS, LR, GL, DNV, NK, TS, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Seamless Duplex Stainless Steel Pipes, ASTM / ASME A789 / SA789, A790 / SA790, A450, A530
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