Yuhong Group Co.,Ltd
| Payment Terms | L/C,T/T |
| Delivery Time | 7 DAYS |
| Packaging Details | Plywood Case /Iron Case/ Woven Bag |
| Standard | ASTM/ASME A789/SA789, A790/SA790,A450,A530 |
| Materia | UNS S31803(Cr22Ni5Mo3/1.4462)/2205,UNS S32750(1.4410),UNS S31500(Cr18NiMo3Si2), UNS32760(1.4501) |
| Type | SEAMLESS / ERW / WELDED/ FABRICATED |
| Inspection | ET, HT, UT , PMI |
| Length | SRL , DRL, Cut Length |
| End | Plain End, Bevelled End |
| High Light | ASTM A790 UNS S32750, 1.4410 Super Duplex Pipe |
| Brand Name | YUHONG |
| Model Number | ASTM A790 UNS S32750 |
| Certification | ABS, GL, BV, GOST, TS, CCS, CNNC, ISO |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C,T/T | Delivery Time | 7 DAYS |
| Packaging Details | Plywood Case /Iron Case/ Woven Bag | Standard | ASTM/ASME A789/SA789, A790/SA790,A450,A530 |
| Materia | UNS S31803(Cr22Ni5Mo3/1.4462)/2205,UNS S32750(1.4410),UNS S31500(Cr18NiMo3Si2), UNS32760(1.4501) | Type | SEAMLESS / ERW / WELDED/ FABRICATED |
| Inspection | ET, HT, UT , PMI | Length | SRL , DRL, Cut Length |
| End | Plain End, Bevelled End | High Light | ASTM A790 UNS S32750, 1.4410 Super Duplex Pipe |
| Brand Name | YUHONG | Model Number | ASTM A790 UNS S32750 |
| Certification | ABS, GL, BV, GOST, TS, CCS, CNNC, ISO | Place of Origin | CHINA |
| High Light | astm a790 uns s32750 seamless steel tube ，astm a790 duplex stainless steel pipes ，uns s32750 duplex stainless steel pipes | ||
ASTM A790 / ASME SA790 UNS S32750 Super Duplex Stainless Steel Pipe
ASTM A790 / ASME SA790 S32750 Standard Specification
| Standard | ASTM A790, ASME SA790 |
| Equivalent Standards | DIN 17458, GOST 9941-81, GOST 9940-81, EN 10216-5, ASTM A790, ASME SA790, DIN 17456 |
| Material | S32750 |
| Equivalent Materials | X2CrNiMoN25-7-4, 1.4410, 2507, F53 |
| Related Products | stainless steel tube, stainless steel pipe, heat exchanger steel tube, ASTM A890 |
ASTM A790 UNS S32750 Seamless Pipes
Sizes : 1/8 to 24 Inch
Thickness : Sch 5 to Sch 160
Length : SRL and DRL
Ends : Plain and Bevelled
ASTM A790 UNS S32750 Welded Pipes
Sizes : 1/8 to 100 Inch.
Thickness : Up to 25mm
Length : Up to 12 Meters
Ends : Plain and Bevelled
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 |
Types of S32750 Seamless & Welded Pipe:
| S32760 Seamless Pipe | Duplex S32750 Thin Wall Pipe |
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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Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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