Product Overview – Stainless Steel 904L Seamless Pipes
Stainless Steel 904L seamless pipes are premium-grade austenitic stainless steel pipes designed to perform in highly corrosive industrial environments. The low carbon composition combined with a high alloy content enhances resistance to pitting corrosion, crevice corrosion, and stress corrosion cracking.
SS 904L pipes are particularly effective in environments involving sulfuric acid, phosphoric acid, and chloride-rich solutions,making them widely used in chemical processing plants and marine engineering systems.
These seamless pipes are produced through advanced manufacturing processes that ensure excellent structural integrity and uniform mechanical properties. The pipes undergo cold drawing, heat treatment, pickling, and inspection procedures to guarantee precise dimensions and superior surface quality.
Because of their outstanding corrosion resistance and mechanical strength, Stainless Steel 904L seamless pipes are commonly used in petrochemical plants, fertilizer industries, offshore platforms, heat exchangers, and desalination plants.
Standard & International Identification - Stainless Steel 904L Seamless Pipes
Technical Specifications – SS 904L Seamless Pipes
| Pipe Type: | Seamless Stainless Steel Pipes |
| Manufacturing Process: | Hot Piercing → Cold Drawing → Solution Annealing → Pickling & Passivation |
| Outer Diameter: | 6 mm to 610 mm |
| Wall Thickness: | 0.5 mm to 50 mm |
| Length Options: | Single Random Length/ Double Random Length/ Custom Cut Length |
| Surface Finish: | Bright Annealed / Pickled & Annealed / Polished Finish Available |
| Testing & Inspection: | Hydrostatic Test,Ultrasonic Testing, PMI,Dimensional Inspection |
| Certification : | EN 10204 3.1 / 3.2 MTC |
Third Party Inspection Available
All specifications are in accordance of ASTM A269 / ASME SA269 standards. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.
Chemical Composition – Stainless Steel 904L
(As per ASTM specification)
| Element | Max (%) |
|---|---|
| Carbon (C): | 0.02% |
| Chromium (Cr): | 19 – 23% |
| Nickel (Ni): | 23 – 28% |
| Molybdenum (Mo): | 4 – 5% |
| Copper (Cu): | 1 – 2% |
| Manganese (Mn): | Max 2% |
| Silicon (Si): | Max 1% |
| Iron : | Balance |
Note: This alloy composition delivers superior corrosion resistance and mechanical stability.
Mechanical Properties – SS 904L Seamless Pipes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 490 MPa |
| Yield Strength | 220 MPa |
| Elongation | 35% |
These mechanical properties ensure long service life in heavy industrial operations.
Corrosion Resistance of SS 904L Pipes
Stainless Steel 904L seamless pipes are specially engineered for environments where strong corrosion resistance is required.
Key corrosion resistance advantages include:
Because of these characteristics, SS 904 pipes are widely used in chemical processing and seawater handling systems.
Major Industrial Applications of Stainless Steel 904L seamless pipes
- Stainless Steel 904L seamless pipes are widely used in:
- 🔸Chemical Processing Plants
- 🔸Oil & Gas Refineries
- 🔸Desalination Plants
- 🔸Pharmaceutical Manufacturing
- 🔸Marine and Offshore Industries
- 🔸Food Processing Plants
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