Power Generation Stainless Steel Pipe ASTM A790 UNS S32906 Corrosion Resistant
ASTM A790 UNS S32906 Stainless Steel Tube For Power Generation
Specifications
ASTM A790 covers seamless and straight-seam welded ferritic/austenitic stainless steel pipe intended for general-purpose applications.
ASTM A790 UNS S32906 is a super duplex stainless steel seamless or welded pipe that offers high strength, good weldability, and excellent resistance to corrosion, especially stress corrosion cracking and pitting. It is specifically designed for applications in corrosive environments, such as those found in the urea and caustic soda production industries. This grade is an optimized version of other duplex stainless steels, with balanced composition and improved thermal stability.
| American Standard | Standard Name |
| A 790 / SA 790 | Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe |
ASTM A790 UNS S32906 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 |
| S32906 | 0.03 | 0.8-1.5 | 0.03 | 0.03 | 0.8 | 5.8–7.5 | 28.0 –30.0 | 1.50–2.60 | 0.30–0.40 | 0.8 |
ASTM A790 UNS S32906 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 | |
| S32906 t<0.40 in.[10 mm] |
116 [800] | 94 [650] | 25 | 300 | 32 |
| S32906 t≥0.40 in.[10 mm] |
109 [750] | 80 [550] | 25 | 300 | 32 |
ASTM A790 UNS S32906 Stainless Steel Tube Application
- Oil & Gas Industry (Extreme Conditions)
- Chemical & Process Industry (Highly Corrosive Media)
- Marine & Offshore Engineering (Critical Seawater Systems)
- Pollution Control & FGD Systems
- Desalination Industry
- Power Generation
ASTM A790 UNS S32906 Stainless Steel Tube Packing & Loading
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