ASTM A213 TP904L Stainless Steel Seamless Pipe
Jan 27, 2026
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What is ASTM A213 TP904L?
ASTM A213 TP904L is an ultra-low carbon, high-alloy austenitic stainless steel seamless pipe with high molybdenum and copper content, offering exceptional corrosion resistance in harsh acidic and chloride environments.
Equivalent Grades (Horizontal)
UNS: N08904 | JIS: SUS904L | GB: 015Cr21Ni26Mo5Cu2 | EN: X1NiCrMoCu25-20-5 | W.Nr.: 1.4539
Chemical Composition (wt%, Horizontal)
C: ≤0.02 | Si: ≤1.00 | Mn: ≤2.00 | P: ≤0.045 | S: ≤0.035 | Cr: 19.00-23.00 | Ni: 23.00-28.00 | Mo: 4.00-5.00 | Cu: 1.00-2.00 | Fe: Balance
Key Properties (20°C, Annealed, Horizontal)
Density: 8.05g/cm³ | Melting Point: 1350-1400°C | Tensile Strength: ≥490N/mm² | Yield Strength: ≥220N/mm² | Elongation: ≥35% | Hardness: ≤220HB
Core Characteristics
• Exceptional resistance to pitting, crevice and stress corrosion cracking in harsh media (sulfuric acid, seawater, acetic acid) • Ultra-low carbon content eliminates intergranular corrosion, no post-weld annealing required • High alloy content ensures stability in both oxidizing and reducing corrosive environments • Suitable for desalination, chemical, petrochemical and marine extreme corrosion pipeline scenarios
TP904L vs TP317L (Horizontal)
Mo Content: 904L (4.00-5.00%) | 317L (3.00-4.00%) | Cu Content: 904L (1.00-2.00%) | 317L (None) | Corrosion Resistance: 904L (Superior) | 317L (Excellent) | Cost: 904L (Higher) | 317L (Lower)
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu | |
| 904L | min. max. |
- 0.02 |
- 2 |
- 1 |
- 0.045 |
- 0.035 |
19 23 |
4 5 |
23 28 |
1 2 |
304 Stainless Steel Suppliers
If you have project requirements for 304 stainless steel, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, wires, etc. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.Email: info@gneestainless.com



Testing and Documentation: Factory test certificate, EN 10204 3.1, chemical report, mechanical report, destructive testing report, non-destructive testing report, PMI test report, visual inspection report, third-party inspection report, NABL certified laboratory report.
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