Product Introduction
904L (UNS N08904) stainless steel Welded Pipe is a high-alloy austenitic steel with copper addition providing excellent resistance to strong reducing acids. Supplied to ASTM A312 in 60.3mm x 3.91mm with a pickled passivated finish, this pipe delivers consistent dimensional accuracy, full traceability and dependable long-term performance for demanding industrial applications.
Product Specifications
| Item | Specification |
| Material Grade | 904L (UNS N08904) |
| Standard | ASTM A312 |
| Type | Welded Pipe |
| Size | 60.3mm x 3.91mm |
| Length | 6 Meter |
| Surface Finish | Pickled Passivated |
Chemical Composition (%)
| Element | Content (%) |
| Carbon (C) | <= 0.020 |
| Manganese (Mn) | <= 2.00 |
| Silicon (Si) | <= 1.00 |
| Phosphorus (P) | <= 0.045 |
| Sulfur (S) | <= 0.035 |
| Chromium (Cr) | 19.0 - 23.0 |
| Nickel (Ni) | 23.0 - 28.0 |
| Molybdenum (Mo) | 4.0 - 5.0 |
| Copper (Cu) | 1.0 - 2.0 |
Mechanical Properties
| Property | Value |
| Tensile Strength | >= 490 MPa |
| Yield Strength | >= 220 MPa |
| Elongation | >= 35% |
| Hardness | <= 90 HRB |
Application Fields
- Sulfuric acid processing
- Chemical and pharmaceutical plants
- Seawater cooling systems
- Gas scrubbing equipment