TOBO STEEL GROUP CHINA
| Outer Diameter | 10mm - 610mm |
| Surface | Pickling, Annealed, 2B Finish, No.4 Polish |
| Standard | ASTM A790 / ASME SA790 / EN 10216-5 |
| End Type | Plain End, Beveled End, Threaded |
| Type | Seamless Cold Drawn / Cold Rolled |
| Delivery Time | 15-30 Workdays |
| Application | Chemical Processing, Marine Environments, Pulp & Paper, Oil Refining, Structural Components |
| Grade | UNS S31803 (F51 / 1.4462) |
| Payment Terms | T/T,Western Union |
| Supply Ability | 10 Ton/Month |
| Wall Thickness | 0.5mm - 45mm |
| Packaging Details | Standard Shipping Package |
| Length | 5.8m / 6m or Custom Cut Length |
| Place of Origin | Shanghai, China |
| Brand Name | TOBO |
| Certification | ISO/TUV/SGS |
| Model Number | UNS S31803 / F51 / 1.4462 |
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Product Specification
| Outer Diameter | 10mm - 610mm | Surface | Pickling, Annealed, 2B Finish, No.4 Polish |
| Standard | ASTM A790 / ASME SA790 / EN 10216-5 | End Type | Plain End, Beveled End, Threaded |
| Type | Seamless Cold Drawn / Cold Rolled | Delivery Time | 15-30 Workdays |
| Application | Chemical Processing, Marine Environments, Pulp & Paper, Oil Refining, Structural Components | Grade | UNS S31803 (F51 / 1.4462) |
| Payment Terms | T/T,Western Union | Supply Ability | 10 Ton/Month |
| Wall Thickness | 0.5mm - 45mm | Packaging Details | Standard Shipping Package |
| Length | 5.8m / 6m or Custom Cut Length | Place of Origin | Shanghai, China |
| Brand Name | TOBO | Certification | ISO/TUV/SGS |
| Model Number | UNS S31803 / F51 / 1.4462 | ||
| High Light | Duplex F51 1.4462 Seamless Pipe ，ASTM A790 S31803 Certified ，ISO TUV SGS Corrosion Resistant | ||
UNS S31803 (F51 / DIN 1.4462) is the original duplex stainless steel grade offering a balanced austenitic-ferritic microstructure with approximately equal phase proportions. It provides a compelling combination of high strength, excellent corrosion resistance, and cost-effectiveness compared to super duplex and high-nickel alloys.
| Grade | C max | Si max | Mn max | P max | S max | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| UNS S31803 | 0.030 | 1.00 | 2.00 | 0.030 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HRC) |
|---|---|---|---|---|
| UNS S31803 | ≥450 | ≥620 | ≥25 | ≤20 |
Commonly used in chemical process piping, marine and coastal equipment, pulp and paper digesters, oil and gas flow lines, pressure vessels, heat exchangers, and structural applications where weight savings from higher strength enable material cost reduction.
Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company,Seller
Year Established:
1998
Total Annual:
100000-100000000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ... TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ...
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