ASTM A790 Seamless Stainless Steel Pipe UNS S32707 For Oil Gas Industry
ASTM A790 UNS S32707 Stainless Steel Tube For Oil and Gas Industry
Specifications
ASTM A790 covers seamless and straight-seam welded ferritic/austenitic stainless steel pipe intended for general-purpose applications.
ASTM A790 UNS S32707 is a hyper-duplex stainless steel pipe that is specified by the ASTM A790 standard, which covers seamless and welded ferritic/austenitic stainless steel pipes. It is known for its exceptional mechanical strength and high resistance to corrosion, particularly pitting and stress corrosion cracking in chloride environments. This material is suitable for harsh conditions in industries like offshore oil and gas, chemical processing, and heat exchangers.
| American Standard | Standard Name |
| A 790 / SA 790 | Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe |
ASTM A790 UNS S32707 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 |
| S32707 | 0.03 | 1.5 | 0.035 | 0.01 | 0.5 | 5.5-9.5 | 26-29 | 4.0-5.0 | 0.30-0.50 | 1 | Co 0.5-2.0 |
ASTM A790 UNS S32707 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,% | HNW | HRC | |
| S32707 | 133 [920] | 101 [700] | 25 | 318 | 34 |
ASTM A790 UNS S32707 Stainless Steel Tube Application
- Oil and Gas Industry
- Subsea Systems
- Downhole Tubing & Casing
- High-Pressure/High-Temperature (HPHT) Wells
- Chemical and Petrochemical Processing (Severe Corrosion)
- Aggressive Acid Service
- Reactor and Column Internals
- Heat Exchanger Tubes
- Marine and Offshore Engineering
- Seawater Cooling Systems
- Desalination Plants
- Power Generation
- Advanced FGD Systems (Flue Gas Desulfurization)
- Condenser and Heat Exchanger Tubes
- Specialized Industrial Applications
- Pollution Control and Waste Treatment
- Geothermal and Sour Gas Wells
ASTM A790 UNS S32707 Stainless Steel Tube Packing & Loading
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