In industries where sulfuric acid, phosphoric acid, and high-chloride environments are the norm, standard 316L pipes often meet their match. When corrosion isn’t just a risk but a certainty, you need a super-austenitic solution with our premium Stainless Steel 904L Welded Pipes.
SS 904L Welded Pipes are high-alloy austenitic stainless steel pipes specially designed for applications that require exceptional corrosion resistance and durability in highly aggressive environments. Stainless Steel 904L Welded Pipes contain higher levels of nickel, chromium, molybdenum, and copper, which provide outstanding resistance to strong acids, chloride corrosion, and stress corrosion cracking.
Chemical Properties of SS 904L Welded Pipes:
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤0.020 |
| Chromium (Cr) | 19.0-23.0 |
| Nickel (Ni) | 23.0-28.0 |
| Molybdenum (Mo) | 4.0-5.0 |
| Copper (Cu) | 1.0-2.0 |
| Manganese (Mn) | ≤2.0 |
| Silicon (Si) | ≤1.0 |
| Phosphorus (P) | ≤0.045 |
| Sulfur (S) | ≤0.035 |
| Iron (Fe) | Balance |
Mechanical Properties of Stainless Steel 904L Welded Pipes:
| Property | Value (Min) |
|---|---|
| Tensile Strength | 490 MPa (71 ksi) |
| Yield Strength (0.2%) | 220 MPa (32 ksi) |
| Elongation (in 50mm) | 35-36% |
| Hardness (Rockwell B) | 70-90 HRB |
| Hardness (Brinell) | ≤150 HB |
| Reduction of Area | ≥50% |
Physical Properties of 904L Welded Pipes:
| Property | Value |
|---|---|
| Density | 7.9-8.0 g/cm³ |
| Melting Range | 1300-1390°C |
| Modulus of Elasticity | 190-195 GPa |
| Electrical Resistivity | 952-1000 nΩ·m |
| Thermal Conductivity (20°C) | 11.5-12 W/m·K |
| Coefficient of Thermal Expansion(100°C) | 15 × 10⁻⁶ /K |
| Specific Heat Capacity (0-100°C) | 450-500 J/kg·K |
Product Specifications:
| Specification | Details |
|---|---|
| Steel Grade | SS 321 |
| Unit Pipe Length | 6 meter, 9 meter |
| Shape | Round |
| Min. Order Quantity | 200 Kilogram |
Critical Applications for 904L:
- Chemical Processing: Sulfuric, phosphoric, and acetic acid production.
- Desalination Plants: Handling high-chloride brine and seawater.
- Pollution Control: Gas scrubbing equipment and chimney liners.
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Looking for reliable suppliers of 904L Stainless Steel Welded Pipes?
Contact Salem Stainless Steel Suppliers Pvt. Ltd., today for pricing, technical support, or customized requirements. Our experts are ready to assist you.
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