Product Overview – Stainless Steel 904 Seamless Pipes
Stainless Steel 904 seamless pipes are high-alloy stainless steel pipes designed to deliver superior corrosion resistance in environments containing acids, chlorides, and harsh industrial chemicals.
Grade 904L contains high levels of chromium, nickel, molybdenum, and copperr, which significantly enhance resistance to pitting, crevice corrosion, and stress corrosion cracking. Because of these characteristics, SS 904L seamless pipes are frequently chosen for critical piping systems where conventional stainless steels may fail.
These pipes are manufactured using the seamless pipe production process, ensuring uniform structure, excellent mechanical strength, and high pressure tolerance. After manufacturing, the pipes undergo heat treatment, pickling, and inspection to guarantee high material integrity.
Due to their superior chemical resistance and structural reliability, Stainless Steel 904L seamless pipes are extensively used in chemical plants, oil refineries, offshore industries, desalination plants, and pharmaceutical manufacturing facilities.
Standard & International Identification - Stainless Steel 904 Seamless Pipes
Technical Specifications – SS 904 Seamless Pipes
| Pipe Type: | Seamless Stainless Steel Pipes |
| Manufacturing Process: | Hot Piercing → Cold Drawing → Heat Treatment → 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 904 Seamless Pipes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 490 MPa |
| Yield Strength | 220 MPa |
| Elongation | 35% |
These properties allow SS 904 seamless pipes to withstand demanding industrial operating conditions.
Corrosion Resistance of SS 904 Pipes
Stainless Steel 904 pipes provide excellent corrosion resistance in harsh environments where conventional stainless steels may fail.
Important corrosion resistance benefits include:
Because of these characteristics, SS 904 pipes are widely used in chemical and seawater handling systems.
Major Industrial Applications of Stainless Steel 904 seamless pipes
- Stainless Steel 904 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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