ASTM A790 S31260 Ferritic Stainless Steel Pipe For Chemical Plants
ASTM A790 S31260 Stainless Steel Tube For Chemical Plants
Specifications
ASTM A790 covers seamless and straight-seam welded ferritic/austenitic stainless steel pipe intended for general-purpose applications.
ASTM A790 S31260 is a standard for duplex stainless steel seamless and welded pipes made from the UNS S31260 grade, which combines high strength with excellent corrosion resistance, particularly in chloride and high-temperature environments. These pipes are used in demanding applications like chemical plants, seawater systems, and high-pressure equipment due to their resistance to pitting, crevice corrosion, and stress corrosion cracking.
| American Standard | Standard Name |
| A 790 / SA 790 | Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe |
ASTM A790 S31260 Stainless Steel Tube Chemical Composition
(Sources American Standard A790 / A790M TABLE 2 Chemical Requirements)
| UNS Designation A | C | Mn | P | S | Si | Ni | Cr | Mo | N | Cu | Others |
| S31260 | 0.03 | 1 | 0.03 | 0.03 | 0.75 | 5.5–7.5 | 24.0–26.0 | 2.5–3.5 | 0.10–0.30 | 0.2-0.80 | W 0.10-0.50 |
ASTM A790 S31260 Stainless Steel Tube Mechanical Properties
(Sources American Standard A790 / A790M TABLE 3 Tensile and Hardness Requirements)
| UNS Designation | Tensile strength, | Yield strength, | Elongation | Hardness, max | |
| min, | min | in 2 in. or 50 | |||
| ksi[MPa] | ksi[MPa] | mm, min,% | HBW | HRC | |
| S31260 | 100 [690] | 65 [450] | 25 | ... | ... |
ASTM A790 S31260 Stainless Steel Tube Application
- Oil and Gas Industry
- Subsea Systems & Flowlines
- Downhole Tubing & Casing
- Pressure Control Equipment
- Chemical Process Industry
- Acid Production and Handling
- Pulp and Paper Industry
- Marine and Offshore Applications
- Seawater Cooling Systems
- Desalination Plants
- Power Generation
- Feedwater Heater Tubes
- Flue Gas Desulfurization (FGD) Systems
- Geothermal and Waste-to-Energy Plants
ASTM A790 S31260 Stainless Steel Tube Packing & Loading
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