ASTM A928 UNS S31803 EFW Pipes ASTM A928M-UNS S31803 CLASS 1, BEVEL ENDS, ASME B36.19M Pipes Duplex stainless steel Pipes Manufacturer & Supplier
ASTM A790/A789 UNS S31803 Duplex Steel Pipes
We are the manufacturer ,Supplier & Exporter of Duplex A928 UNS S31803 EFW Pipes UNS S31803 Duplex stainless steel Pipe
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
| ASTM A928 Duplex Stainless Steel EFW Pipes Outer Diameter Size | EFW – 8″ NB TO 110″ NB |
| ASTM A928 Duplex Stainless Steel EFW Pipes Wall Thickness | Schedule 10 to Schedule 160 (3 mm to 30 mm Thickness) |
| ASTM A928 Duplex Stainless Steel EFW Pipes Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
| ASTM A928 Duplex Stainless Steel EFW Pipes Ends | Plain Ends / Beveled Ends |
| ASTM A928 Duplex Stainless Steel EFW Pipes Delivery Conditions | As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw, Bright Annealed |
ASTM A928 Duplex Stainless Steel EFW Pipe specification covers standard requirements for ferritic/austenitic (duplex) stainless steel pipe that is electric fusion welded with addition of filler metal suitable for corrosive service. Heat treatment shall be performed after welding and in accordance with specified temperature and quench conditions.
Several grades of ferritic/austenitic steel shall conform to the requirements of the applicable specification and grade designation. Heat and product analyses shall be conducted and shall conform to the requirements for the particular grade. The plate used in making the pipe shall conform to the required tensile properties. The steel pipe shall undergo several mechanical tests including transverse tension test, transverse guided-bend test, nondestructive test, hydrostatic test, and nondestructive electric test.
Five classes of pipe are covered as follows:
Class 1—Pipe shall be double welded by processes using filler metal in all passes and shall be radiographed completely.
Class 2—Pipe shall be double welded by processes using filler metal in all passes. No radiograph is required.
Class 3—Pipe shall be single welded by processes using filler metal in all passes and shall be radiographed completely.
Class 4—Same as Class 3, except that the weld pass exposed to the inside pipe surface is permitted to be made without the addition of filler metal (see 6.2.2.1 and 6.2.2.2).
Class 5—Pipe shall be double welded by processes using filler metal in all passes and shall be spot radiographed.
Duplex stainless steels are extremely corrosion resistant, work hardenable alloys. Their microstructures consist of a mixture of austenite and ferrite phases. As a result, duplex stainless steels display properties characteristic of both austenitic and ferritic stainless steels. This combination of properties can mean some compromise when compared with pure austenitic and pure ferritic grades.
Duplex stainless steels are in most cases, tougher than ferritic stainless steels. Strengths of duplex stainless steels can in some cases be double that for austenitic stainless steels.
The duplex stainless steels are considered resistant to stress corrosion cracking, they are not as resistant to this form of attack as ferritic stainless steels. However, the corrosion resistance of the least resistant duplex stainless steels is greater than that for the most commonly used grades of stainless steels, i.e. 304 and 316.
Duplex stainless steels are also magnetic, a property that can be used to easily differentiate them from common austenitic grades of stainless.
Property data given in this document is typical for flat rolled products covered by ASTM A240/A240M. ASTM, EN or other standards may cover products sold. It is reasonable to expect specifications in these standards to be similar but not necessarily identical to those given in this datasheet.
EQUIVALENT GRADE
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex UNS S31803 | 1.4462 | S31803 |
| Duplex UNS S32205 | 1.4462 | S32205 |
DUPLEX STEEL A928 UNS S31803 PIPE CHEMICAL COMPOSITION
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo | N | Fe |
| Duplex S31803 | 0.030 max. | 2.00 max. | 1.00 max. | 0.030 max. | 0.020 max. | 22.0 – 23.0 | 4.50 – 6.50 | 3.0 – 3.5 | 0.14 – 0.20 | 63.72 min. |
| Duplex S32205 | 0.030 max. | 2.00 max. | 1.00 max. | 0.030 max. | 0.020 max. | 21.0 – 23.0 | 4.50 – 6.50 | 2.50 – 3.50 | 0.08 – 0.20 | 63.54 min |
DUPLEX STEEL A928 UNS S31803 PIPE MECHANICAL PROPERTIES
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Duplex S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 | 25 min. |
| Duplex S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 | 25 min. |
How to order our ASTM A928-UNS S31803 Pipes?
(6 Mts.) 16″, Pipe, SCH80S, EFW, Duplex SS, ASTM A928-UNS S31803, Bevel Ends, ASME B36.19M
(6 Mts.) 20″, Pipe, SCH80S, EFW, Duplex SS, ASTM A928-UNS S31803, Bevel Ends, ASME B36.19M
(6 Mts.) 2″, Pipe, SCH10S, EFW, Duplex SS, ASTM A928-UNS S31803, Bevel Ends, ASME B36.19M
(6 Mts.) 12″, Pipe, SCH10S, EFW, Duplex SS, ASTM A928-UNS S31803, Bevel Ends, ASME B36.19M
(6 Mts.) 24″, Pipe, SCH10S, EFW, Duplex SS, ASTM A928-UNS S31803, Bevel Ends, ASME B36.19M
(6 Mts.) 10″, Pipe, SCH10S, EFW, Duplex SS, ASTM A790M-UNS S31803, Bevel Ends, ASME B36.19M
