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| Product Name: | Boiler Pipe | Standard: | ASTM A790 / ASME SA790 |
|---|---|---|---|
| Material: | Duplex Steel | End: | Plain Ends/ Beveled Ends |
| Form: | Straight &U Bend | Type: | Seamless &Welded |
| Packing: | Plywood Case,Bundle | ||
| High Light: | ASME SA790 Duplex Steel Pipe,Duplex Steel Seamless Pipe, Boiler Pipe,Condenser Pipe | ||
ASTM A790 / ASME SA790 S32750 Duplex Steel Pipe
Overview
ASTM A790 S32750 is a standard specification for seamless and welded ferritic/austenitic stainless steel pipe. S32750 is a super duplex stainless steel, which has a higher strength and better corrosion resistance than duplex stainless steels like S31803. This specification covers pipes that are intended for general corrosive service, high-temperature service, and low-temperature service. The pipes may be either seamless or welded and may be produced by various welding processes such as electric resistance welding, electric fusion welding, or submerged arc welding.
Chemical Composition of ASTM A790 S32750
| Grade | C | Mn | S | P | Si | Ni | Cr | Mo | N | |
| S32205 | Min | 6.0 | 24.0 | 3.0 | 0.24 | |||||
| Max | 0.03 | 1.2 | 0.02 | 0.035 | 0.8 | 8.0 | 26.0 | 5.0 | 0.32 |
Mechanical Properies of ASTM A790 S32750
| Grade | Tensile Str Ksi(Mpa) | Yield Str Ksi(Mpa) | Elongation(%) | Brinell(HBW) | Rockwell C(HRC) |
| S32205 | ≥116(800) | ≥80(550) | ≥15 | ≥300 | ≥32 |
Wall Thickness Tolerance of ASTM A790
| OD Range | t/D Ratios | Wall Thickness Tolerance | |
| Under(-) | Over(+) | ||
| 1/8"~2 1/2" (Incl.) | All | 12.5% | 20% |
| 3"~18" (Incl.) | t/D up to 5% Incl. | 12.5% | 22.5% |
| >18" (Incl.) | t/D up > 5% Incl. | 12.5% | 15% |
| >18" Welded | All | 12.5% | 17.5% |
| >18" Seamless | t/D up to 5% Incl. | 12.5% | 22.5% |
| t/D up > 5% Incl. | 12.5% | 15% | |
Uses&Application:
1>.Oil and gas industry: ASTM A790 S32750 is widely used in the oil and gas industry for applications such as offshore platforms, subsea pipelines, and oil and gas processing equipment.
2>.Chemical processing industry: The excellent corrosion resistance of ASTM A790 S32750 makes it suitable for use in chemical processing equipment such as reactors, heat exchangers, and tanks.
3>.Desalination plants: ASTM A790 S32750 is used in desalination plants for its excellent resistance to corrosion and high strength.
Pulp and paper industry: The high strength and corrosion resistance of ASTM A790 S32750 make it suitable for use in pulp and paper processing equipment such as digesters and bleach towers.
4>.Marine industry: ASTM A790 S32750 is used in the marine industry for applications such as shipbuilding, offshore platforms, and seawater desalination.
