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| Categories | Duplex Stainless Steel Pipe |
|---|---|
| Brand Name: | YUHONG |
| Model Number: | ASTM A790 UNS S32750 Duplex Steel Pipe |
| Certification: | ABS, GL, BV, PED, AD2000, GOST, TS, CCS, CNNC, ISO |
| Place of Origin: | CHINA |
| MOQ: | 500kgs |
| Payment Terms: | T/T |
| Delivery Time: | 25days |
| Packaging Details: | EXPORT STANDARD |
| Product Name: | Duplex Stainless Steel Pipe |
| Standard: | ASTM A789, ASTM A790 |
| Material Grade: | S31803 , 2205, S32750, S32760, S31500, S32900, S32304 |
| OD: | 1/2" to 48" |
| WT: | Sch 5S to Sch XXS |
| Length: | Single Random, Double Random & Cut Length |
| Type: | Seamless / Welded |
| Application: | Petrochemical, Oil & Gas, Boiler/ Heat Exchanger/Sea Water Transfer |
| High Light: | super duplex seamless pipe, duplex steel pipes |
| Company Info. |
| Yuhong Group Co.,Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
ASTM A790 UNS32750 Duplex Stainless Steel Seamless / Welded Pipes
S32750 is a super duplex stainless steel that has a higher chromium, molybdenum, and nickel content compared to S31803. This makes it more resistant to corrosion and pitting in aggressive environments such as seawater and chemical processing plants. S31803 is a standard duplex stainless steel that is also highly resistant to corrosion and has good mechanical properties. It is commonly used in industries such as oil and gas, chemical processing, and pulp and paper.
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:
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Duplex Stainless Steel Pipe, ASTM A790 , ASTM A928 , S31803 , S32750, S32760, S31254 , 254Mo, 253MA
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DUPLEX STAINLESS STEEL PIPE, ASTM A789 ,A790, A928 S31803 S32750 S32760 S31254 254MO 253MA
ASTM A928 Supler Duplex Welded Pipe High Strength ASTM A999
ASTM A312, ASTM A213 ,254SMo, EN10216-5 1.4547 ,UNS S31254 Super Austenitic Stainless Steel Seamless Pipe and Tube
