ASTM A790 UNS S83071 Stainless Steel Tube For Marine and Offshore Engineering
ASTM A790 UNS S83071 Stainless Steel Tube For Marine and Offshore Engineering
Specifications
ASTM A790 covers seamless and straight-seam welded ferritic/austenitic stainless steel pipe intended for general-purpose applications.
ASTM A790 UNS S83071 stainless steel tube is a super duplex stainless steel characterized by a very high content of chromium, molybdenum, and nitrogen. This composition provides exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC), along with very high mechanical strength (approximately double that of standard austenitic steels like 316L).
| American Standard | Standard Name |
| A 790 / SA 790 | Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe |
ASTM A790 UNS S83071 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 |
| S83071 | 0.03 | 0.5-1.5 | 0.03 | 0.02 | 0.5 | 6.0-8.0 | 29.0-31.0 | 3.0-4.0 | 0.28-0.40 | 0.8 |
ASTM A790 UNS S83071 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 | |
| S83071 | 120 [830] | 98 [680] | 25 | 300 | 32 |
ASTM A790 UNS S83071 Stainless Steel Tube Application
- Oil & Gas Industry
- Chemical Process Industry
- Marine and Offshore Engineering
- Desalination and Water Treatment
- Power Generation
- Pulp and Paper Industry
- Mechanical and Pressure Applications
ASTM A790 UNS S83071 Stainless Steel Tube Packing & Loading
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.