BEST PIPELINE EQUIPMENT CO.,LTD
| Supply Ability | 10000 Ton/Moth |
| Delivery Time | 5-8 working days |
| Packaging Details | Regular shipping packaging or depends on customer's requirement |
| Standard | ASTM A790 |
| Grade | S31803 |
| Section Shape | Round |
| Place of origin | China |
| Material | 2205/2507 |
| Production Year | 2018 |
| Brand Name | Best |
| Model Number | 1/4' -48'' |
| Certification | API/CE/ ISO / |
| Place of Origin | China |
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Product Specification
| Supply Ability | 10000 Ton/Moth | Delivery Time | 5-8 working days |
| Packaging Details | Regular shipping packaging or depends on customer's requirement | Standard | ASTM A790 |
| Grade | S31803 | Section Shape | Round |
| Place of origin | China | Material | 2205/2507 |
| Production Year | 2018 | Brand Name | Best |
| Model Number | 1/4' -48'' | Certification | API/CE/ ISO / |
| Place of Origin | China | ||
| High Light | duplex stainless steel tube ，duplex steel pipes | ||
Production Name : Seamless Duplex Stainless Steel Pipe Standard : ASTM A790 Material : S31803 NACE MR0175
Duplex UNS S31803 is the most common duplex grade in the market. It has very good resistance to localized corrosion and stress corrosion cracking in combination with high mechanical strength. It is widely used in oil & gas, hydro power, pressure vessels, pulp & paper, structural components and chemical tankers. The alloy is not intended to be used at temperatures above 300°C due to embrittlement.
| WEIGHT% | C | SI | MN | S | P | CR | NI | MO | N |
| MIN. | 21,00 | 4,50 | 2,50 | 0,10 | |||||
| MAX. | 0,030 | 1,00 | 2,00 | 0,015 | 0,030 | 23,00 | 6,50 | 3,50 | 0,22 |
The main applications are for details with special requirements for high corrosion resistance.
S31803 is characterized by:
• High resistance to stress corrosion cracking in halide containing environments.
• High resistance to pitting and crevice corrosion.
• High resistance to general corrosion.
• High mechanical strength.
• High resistance to erosion corrosion and corrosion fatigue.
| YIELD STRENGTH RP0.2 MPA | TENSILE STRENGTH RM MPA | ELONGATION [%] | HARDNESS [HB] | IMPACT, CHARPY-V, -46ºC [J] | PRE | |
| BAR | ≥ 450 | 650 – 880 | ≥ 25 | ≤ 270 | ≥ 45 | ≥ 33 |
| PLATE, CR | ≥ 500 | 700 – 950 | ≥ 20 | ≥ 45 | ≥ 33 | |
| PLATE, HR | ≥ 460 | 640 – 840 | ≥ 25 | ≥ 45 | ≥ 33 |
Solution annealing at 1020 – 1100°C followed by water quenching.
Very good.
| UNS | TYPE | AMS | ASTM | FEDERAL | CHARACTERISTICS |
|---|---|---|---|---|---|
| S31803/S32205 | Duplex | – – | A-276 A-479 | – | Roughly double the strength of standard austenitic stainless steels, designed to improve resistance in many applications such as chloride environments and sulfide stress corrosion. |
| C | MN | P | S | SI | CR | NI | MO | CU | OTHER | M/NM |
|---|---|---|---|---|---|---|---|---|---|---|
| .03 | 2. | .03 | .02 | 1. | 21. – 23. | 4.5 – 6.5 | 2.5 – 3.5 | N .08 – .2 | INQUIRE |
Seamless Duplex Stainless Steel Pipe Pictures
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2010
Total Annual:
1000000-5000000
Employee Number:
116~209
Ecer Certification：
Site Member
Best Alloy Engineering Alloy Pipe as s a reference point for excellence in the manufacture and distribution of fittings, piping, bends, forged flanges , clad products and specialties for the upstream, midstream and downstream sectors of oil & gas, thermal and ... Best Alloy Engineering Alloy Pipe as s a reference point for excellence in the manufacture and distribution of fittings, piping, bends, forged flanges , clad products and specialties for the upstream, midstream and downstream sectors of oil & gas, thermal and ...
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