ASTM A312 TP904L Stainless Steel Seamless Pipe

What is ASTM A312 TP904L?

ASTM A312 TP904L is an ultra-low carbon, high-alloy austenitic stainless steel seamless pipe with high Mo & Cu, offering exceptional corrosion resistance in harsh acidic, chloride and reducing 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

Excellent performance in sulfuric, phosphoric, acetic acids and seawater

Ultra-low carbon eliminates intergranular corrosion

For chemical, petrochemical, desalination and marine piping

TP317L vs TP904L (Horizontal)Mo: 317L (3.00-4.00%) | 904L (4.00-5.00%) | Cu: 317L (None) | 904L (1.00-2.00%) | Corrosion: 317L (Good) | 904L (Superior) | Cost: 317L (Lower) | 904L (Higher)

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

 

Stainless Steel Suppliers

If you have project requirements for 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.
Packaging: Wooden crate packaging, bubble wrap packaging, steel strapping, or packaging according to customer requirements.