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ASTM A928 is a specification for electric fusion welded duplex stainless steel pipe with the addition of filler metal. This specification covers various grades of duplex stainless steel, including S31200, S31260, S31500, S31803, and S32003. These pipes are widely used in various industries due to their excellent corrosion resistance, high strength, and good weldability.
The ASTM A928 specification covers electric fusion welded duplex stainless steel pipes with a nominal pipe size ranging from 14 inches to 96 inches. The pipes are manufactured using the electric fusion welding process, which involves the joining of two metal plates through the application of heat generated by an electric arc. The filler metal is added during the welding process to ensure a strong and durable bond.
| Grade | C | Mn | P | S | Si | Ni | Cr | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| S31200 | 0.03 max | 2.00 max | 0.030 max | 0.020 max | 1.00 max | 4.50-6.50 | 24.0-26.0 | 0.14-0.20 | 0.05-0.10 |
| S31260 | 0.03 max | 2.00 max | 0.030 max | 0.020 max | 1.00 max | 5.50-7.50 | 24.0-26.0 | 0.20-0.30 | 0.10-0.25 |
| S31500 | 0.03 max | 1.20 max | 0.030 max | 0.020 max | 1.00 max | 4.50-6.50 | 18.0-19.0 | 2.50-3.00 | 0.05-0.10 |
| S31803 | 0.03 max | 2.00 max | 0.030 max | 0.020 max | 1.00 max | 4.50-6.50 | 21.0-23.0 | 2.50-3.50 | 0.08-0.20 |
| S32003 | 0.03 max | 2.00 max | 0.030 max | 0.020 max | 1.00 max | 3.00-4.00 | 22.0-23.0 | 1.50-2.00 | 0.14-0.20 |
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| S31200 | 620 min | 450 min | 25 min | 290 max |
| S31260 | 690 min | 485 min | 25 min | 290 max |
| S31500 | 630 min | 450 min | 25 min | 290 max |
| S31803 | 620 min | 450 min | 25 min | 290 max |
| S32003 | 620 min | 450 min | 25 min | 290 max |
The steel grades covered by ASTM A928 include S31200, S31260, S31500, S31803, and S32003. These grades offer a combination of high strength and excellent corrosion resistance, making them suitable for various applications.
The ASTM A928 duplex stainless steel pipes find applications in a wide range of industries, including:
While ASTM A928 covers a range of duplex stainless steel grades, there are alternative grades available in the market that offer similar properties. Some possible alternative grades include 2205, 2507, and UNS S32750. These grades also provide excellent corrosion resistance and high strength, making them suitable substitutes for the ASTM A928 grades in certain applications.
A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
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