Yuhong Group Co.,Ltd
| Payment Terms | T/T,L/C |
| Supply Ability | 1000 tons per month |
| Delivery Time | Depends on quantity |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case |
| Specification | ASTM A790, ASME SA790 |
| Grade | S31803 |
| Type | Seamless |
| Surface | Pickled and Annealed, Polished, Bright Annealed |
| Non Destructive Test | Eddy Current Test -ASTM E426, Hystostatic Test-ASTM A999, Ultrsonic Test -ASTM E213 |
| Size Standard | ASTM B16.10 & B16.19 & Customized |
| Brand Name | YUHONG |
| Model Number | A790 S31803 Seamless Pipe |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T,L/C | Supply Ability | 1000 tons per month |
| Delivery Time | Depends on quantity | Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case |
| Specification | ASTM A790, ASME SA790 | Grade | S31803 |
| Type | Seamless | Surface | Pickled and Annealed, Polished, Bright Annealed |
| Non Destructive Test | Eddy Current Test -ASTM E426, Hystostatic Test-ASTM A999, Ultrsonic Test -ASTM E213 | Size Standard | ASTM B16.10 & B16.19 & Customized |
| Brand Name | YUHONG | Model Number | A790 S31803 Seamless Pipe |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 | Place of Origin | China |
| High Light | Duplex Stainless Steel Round Pipe ，Polished Duplex Stainless Steel Pipe ，S31803 Stainless Seamless Pipe | ||
ASTM A790 S31803 Duplex Seamless And Welded Pipe Corrosion Resistant
UNS S31803, F51, 1.4462 duplex stainless steel is designed to combine improved resistance to stress corrosion cracking, pitting, crevice corrosion and high strength when compared with other stainless alloys.
These attributes mean that Duplex UNS S31803, F51, 1.4462 can be used successfully as an alternative to standard stainless steel specifications in applications where higher strength and resistance to stress corrosion cracking is required.
Chemical Composition of S31803
| Property | Value |
|---|---|
| Carbon | 0.03% |
| Chromium | 21-23% |
| Manganese | 2% |
| Molybdenum | 2.5-3.5% |
| Nickel | 4.5-6.5% |
| Nitrogen | 0.08-0.02% |
| Phosphorus | 0.03% |
| Silicon | 1% |
| Sulfur | 0.02% |
Mechanical Behaviour
| Property | Value | |
|---|---|---|
| Tensile Strength, min, ksi, [MPa] | 90 [ 620] | |
| Yield Strength, min, ksi [MPa] | 65 [450] | |
| Elongation in 2 in. or 50mm, min, % | 25 | |
| Hardness, max | HBW | HRC |
| 290 | 30 | |
Tolerances Of ASTM A790 UNS S31803 Pipe
| NPS Designator | Permissible Variations in Outside Diameter | |
|---|---|---|
| Over In. | Under In. | |
| 1/8 to 1-1/2, incl | 1/64 (0.015) | 1/32 (0.031) |
| Over 1-1/2 to 4, incl | 1/32 (0.031) | 1/32 (0.031) |
| Over 4 to 8, incl | 1/16 (0.062) | 1/32 (0.031) |
| Over 8 to 18, incl | 3/23 (0.093) | 1/32 (0.031) |
Pressure Rating
| Pipes O.D. (in.) | Duplex Steel 2205 Pipe Wall Thickness of Pipe (inches) | |||||||
|---|---|---|---|---|---|---|---|---|
| .035 | .109 | .028 | .065 | .049 | .095 | .083 | .120 | |
| 1/4 | 4800 | 3700 | 9500 | 7000 | ||||
| 1/8 | 10100 | 7900 | ||||||
| 3/8 | 3100 | 6100 | 4400 | |||||
| 5/16 | 3700 | 7300 | 5400 | |||||
| 3/4 | 3000 | 2200 | 4600 | 4000 | ||||
| 1/2 | 2300 | 4400 | 3200 | |||||
| 1 | 3900 | 2200 | 3400 | 2900 | 4300 | |||
Duplex Stainless Steel Features
Duplex stainless steels have Austenitic and Ferritic stainless steel microstructure, and possess properties in two groups stainless steel, however, there are different.
Versus Austenitic
Versus Ferritic
APPLICATIONS:
· Chemical processing, transportation and storage
· Oil and gas exploration and offshore drilling rigs
· Oil and gas refining
· The marine environment
· Pollution control equipment
· Pulp and paper manufacturing
· Chemical process plant
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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