Yuhong Group Co.,Ltd
| Payment Terms | L/C,T/T |
| Supply Ability | According to customer's request |
| Delivery Time | Depends on quantity |
| Packaging Details | Bundle with plastic Cap / Ply Wooden Case |
| hydrotest-pressure | ≥ 100 bar (1500 psi) |
| purchasing-standard | ASTM A790 + SA 790 |
| en-10216-equivalent-grade | 1.4507 |
| max-service-temperature | 300°C (572°F) |
| Brand Name | YUHONG |
| Model Number | ASTM A790 UNS S3750 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | CHIAN |
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Product Specification
| Payment Terms | L/C,T/T | Supply Ability | According to customer's request |
| Delivery Time | Depends on quantity | Packaging Details | Bundle with plastic Cap / Ply Wooden Case |
| hydrotest-pressure | ≥ 100 bar (1500 psi) | purchasing-standard | ASTM A790 + SA 790 |
| en-10216-equivalent-grade | 1.4507 | max-service-temperature | 300°C (572°F) |
| Brand Name | YUHONG | Model Number | ASTM A790 UNS S3750 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 | Place of Origin | CHIAN |
| High Light | ASTM A790 Super Duplex pipe ，S37500 stainless steel seamless pipe ，Super Duplex steel pipe with warranty | ||
Our ASTM A790 UNS S3750 (UNS S37500) seamless pipes deliver exceptional pitting/stress corrosion resistance in chloride-rich environments. Manufactured through rotary piercing and cold drawing, these super duplex stainless steel tubes exceed ASTM A790 tolerances for demanding offshore, chemical processing, and FGD applications.
| Element | Min % | Max % | Typical % |
|---|---|---|---|
| Cr | 24.0 | 26.0 | 25.2 |
| Ni | 6.0 | 8.0 | 6.8 |
| Mo | 3.0 | 4.0 | 3.5 |
| N | 0.20 | 0.30 | 0.25 |
| C | - | 0.03 | 0.02 |
| Mn | - | 1.2 | 0.8 |
| Fe | Balance | - | 62.5 |
| Parameter | Requirement | Test Standard |
|---|---|---|
| Tensile Strength | ≥ 750 MPa | ASTM A370 |
| Yield Strength (0.2% offset) | ≥ 550 MPa | ASTM A370 |
| Elongation (% in 50mm) | ≥ 15% | ASTM A370 |
| Hardness (HBW) | ≤ 310 | ASTM E10 |
| Impact Toughness (-46°C) | ≥ 45 J | ASTM A370 |
| Dimension | Hot-Finished | Cold-Drawn |
|---|---|---|
| OD Tolerance | ±1.0% or ±0.5mm | ±0.5% or ±0.25mm |
| Wall Thickness | +20%/-0% | ±10% |
| Straightness | 3mm/m max | 1.5mm/m max |
| Region | Standard | Grade |
|---|---|---|
| International | EN 10216-5 | 1.4507 |
| Europe | EN 10088-3 | X2CrNiMoN25-7-4 |
| Japan | JIS G3463 | SUS 329J4L |
| Unified Number | UNS | S37500 |
| Industry | Critical Use Cases |
|---|---|
| Offshore Oil & Gas | Subsea manifolds, Riser pipes, Christmas trees |
| Desalination Plants | RO membranes, Brine heaters, Evaporator tubes |
| Chemical Processing | Acid coolers, Reactor coils, CIP systems |
| Pollution Control | FGD ducting, Scrubber modules |
| Pulp & Paper | Digester vessels, Bleach plants |
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 HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
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