Home > Products > Duplex Stainless Steel Pipes > Duplex Stainless Steel Pipe,ASTM A789, ASTM A790, UNS32750, UNS32760 Pickled And Annealed,
Duplex Stainless Steel Pipe,ASTM A789, ASTM A790, UNS32750, UNS32760 Pickled And Annealed,
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Product Details
Brand Name: | YUHONG SPECIAL STEEL | Place of Origin: | China |
Product Description
Certification:ABS, GL, BV, PED, AD2000, GOST, TS, CCS, CNNC, ISO
Duplex Stainless Steel Pipe,ASTM A789, ASTM A790, UNS32750, UNS32760 Pickled And Annealed
Detailed Product Description
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
Some of the quality tests carried out by us includes:
Corrosion Test | Conducted only when specially requested by the client |
Chemical Analysis | Test done as per required quality standards |
Destructive / Mechanical Testing | Tensile | Hardness | Flattening | Flare | Flange |
Reverse-bend and Re. flat tests | Carried out in full compliance with relevant standards & ASTM A-450 and A-530 norms, which ensures trouble-free expansion, welding & use at customers end |
Eddy Current Testing | Done to detect homogeneities in subsurface by using Digital Flaw-mark Testing System |
Hydrostatic Testing | 100% Hydrostatic Testing carried out according to ASTM-A 450 norms for checking tube leakage, and biggest pressure we can support 20Mpa/7s . |
Air Under Pressure Test | To check any evidence of air leakage |
Visual Inspection | After passivation, every single length of tubes & pipes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections |
Supplementary Testing : Apart from the above mentioned tests, we also carry out on the manufactured products supplementary testing. The tests conducted under this include:
Eddy Current Testing O.P Testing Radiography |
Contact Us
- Yuhong Special group
- Contact nameMr. Jikin Cai
- Phone86-574-88013900
- AddressRoom 1506,1# New World Building Zhoushan,Zhejiang
Butt Weld Fittings | Duplex Stainless Steel Pipes | Stainless Steel Seamless Pipe | Stainless Steel Seamless Pipes |
Stainless Steel Seamless Tube | Stainless Steel U Bend Tube | Steel Flanges |
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