UNS S32304 ASTM A790 Stainless Steel Pipe For Potable Water Distribution Systems
ASTM A790 UNS S32304 Stainless Steel Tube For Potable Water Distribution Systems
Specifications
ASTM A790 covers seamless and straight-seam welded ferritic/austenitic stainless steel pipe intended for general-purpose applications.
ASTM A790 UNS S32304 Seamless Duplex Steel Pipe,UNS S32304 also called Duplex 2304 or 1.4362 is a lean duplex stainless steel with a balanced austenite + ferrite microstructure. It provides higher strength than 304/316 austenitic stainless steels while maintaining good resistance to general corrosion, pitting, and stress corrosion cracking—at a more cost-effective alloying content.
| American Standard | Standard Name |
| A 790 / SA 790 | Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe |
ASTM A790 UNS S32304 Stainless Steel Tube Chemical Composition
(Sources American Standard A790 / A790M TABLE 2 Chemical Requirements)
| UNS Designation A | Type | C | Mn | P | S | Si | Ni | Cr | Mo | N | Cu |
| S32304 | 2304 | 0.03 | 2.5 | 0.04 | 0.04 | 1 | 3.0–5.5 | 21.5–24.5 | 0.05–0.60 | 0.05–0.20 | 0.05-0.60 |
ASTM A790 UNS S32304 Stainless Steel Tube Mechanical Properties
(Sources American Standard A790 / A790M TABLE 3 Tensile and Hardness Requirements)
| UNS Designation | Type | Tensile strength, | Yield strength, | Elongation | Hardness, max | |
| min, | min | in 2 in. or 50 | ||||
| ksi[MPa] | ksi[MPa] | mm, min,% | HBW | HRC | ||
| S32304 | 2304 | 87 [600] | 58 [400] | 25 | 290 | 30 |
ASTM A790 UNS S32304 Stainless Steel Tube Application
- Water and Wastewater Treatment
- Potable Water Distribution Systems
- Wastewater Treatment Plants
- Desalination Pretreatment Systems
- Oil and Gas Industry
- Utility and Service Water Lines
- Firewater Systems
- Chemical Process Industry
- Piping and Process Equipment
- Transportation Equipment
- Structural and Architectural Applications
- Structural Hollow Sections (HSS)
- Handrails, Balustrades, and Walkways
- Pulp and Paper Industry
- Transportation
ASTM A790 UNS S32304 Stainless Steel Tube Packing & Loading
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