Office Address
- G/81, Ground Floor, C Sarvodaya Nagar, Panjrapole 1st Lane Madhav Baug, Mumbai - 400004
- sales@nirvaanoverseas.com
- +91 77386 88058
- +91 2231447403 Call Now
Office Address
Technical Product Details
| Material Grade | High-Alloy Super Austenitic Stainless Steel (UNS N08904 / 1.4539) |
| Governing Specifications | ASTM A240 / ASME SA240, EN 10088-2, BS 1449, JIS G4305 |
| Supply Configurations | Precision Slit Coils, Master Coils, Continuous Strip Ribbons, Level Flat Strips |
| Dimensional Scope | Thickness: 0.03 mm to 5.0 mm | Width: 3.0 mm to 2000 mm | Slit Tolerance: ±0.1 mm |
| Surface Finishes | 2B (Smooth Cold Rolled), BA (Bright Annealed), No.1 (HR Pickled), No.4 Satin, 8K Mirror |
| In-House Quality Verification | Positive Material Identification (PMI), Grain Size Evaluation, Intergranular Corrosion (IGC) Testing |
Table of Contents
Engineered specifically for warm, concentrated sulfuric acid service, super austenitic UNS N08904 alloys provide superior pitting and stress corrosion protection. Nirvaan Overseas is a premier SS 904L Coil Supplier in India and SS 904L Strip Supplier in India processing cold-rolled coils slit to exact width tolerances.
As a trusted SS 904L Coil Exporter, we maintain ready stock of SS 904L 2B Coil, SS 904L BA Coil, and SS 904L Slit Coil inventory for chemical scrubbers. Our processing facility supplies custom-slit SS 904L 2B Strip, SS 904L BA Strip, and SS 904L Mirror Strip stock laminated with protective fiber-laser film.
Operating as an established SS 904L Strip Exporter, we process continuous SS 904L Slit Strip rolls in fully annealed mill conditions for high-speed stamping. Every order complies with ASTM A240 standards with EN 10204 3.1 certification for export to Saudi Arabia, UAE, Qatar, Oman, Kuwait, Germany, Italy, Poland, Singapore, Malaysia, Vietnam, Indonesia, and the US.
| Parameter | Technical Details |
|---|---|
| Standards | ASTM A240 / ASME SA240, EN 10088-2, BS 1449, JIS G4305, Werkstoff 1.4539 |
| Grade Variant | UNS N08904 (Super Austenitic Stainless Steel 904L) |
| Supply Form | SS 904L Slit Coil (Pancake / Oscillated), SS 904L Slit Strip (Cut-to-Length Strips) |
| Dimensions | Thickness: 0.03 mm to 5.0 mm | Slit Width: 3.0 mm to 2000 mm | Length: Continuous / Up to 6000 mm |
| Width Tolerance | Precision Slit Tolerance: ±0.1 mm on custom narrow ribbons |
| Coil Dimensions | Inner Diameter (ID): 150 mm to 610 mm | Outer Diameter (OD): Up to 1800 mm |
| Surface Finish | SS 904L 2B Strip, SS 904L BA Strip, SS 904L Mirror Strip (8K), No.1 HR Pickled |
| Edge Finish | Slit Edge, Mill Edge, Deburred Edge, Rounded Safety Edge |
| Element | Specification Limit (%) |
|---|---|
| Carbon (C) | 0.020% Max |
| 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) | 2.00% Max |
| Silicon (Si) | 1.00% Max |
| Phosphorus (P) | 0.040% Max |
| Sulfur (S) | 0.030% Max |
| Property Parameter | Metric Value | Imperial Value |
|---|---|---|
| Tensile Strength (Min) | 490 MPa | 71,000 PSI |
| Yield Strength (0.2% Offset) | 220 MPa | 32,000 PSI |
| Elongation (% in 50 mm) | 35% Min | 35% Min |
| Density Constant | 8.0 g/cm³ / 7.95 g/cm³ | 0.289 lb/in³ |
| Melting Range | 1300°C – 1390°C | 2372°F – 2534°F |
Calculate the approximate weight of your Finish Strip:
| Feature / Property | SS 904L (UNS N08904) | SS 316L Coil & Strip | SS 317L Coil & Strip |
|---|---|---|---|
| Alloy Matrix Class | Super Austenitic Stainless | Standard Austenitic Stainless | High-Moly Austenitic Stainless |
| Sulfuric Acid Resistance | Superior (1% to 2% Cu added) | Poor in concentrations > 10% | Moderate (Higher Mo than 316L) |
| Pitting Resistance (PREN) | PREN ≥ 34 (High Protection) | PREN ~ 25 (Standard Protection) | PREN ~ 29 (Enhanced Protection) |
| Nickel Content (%) | High (23.0% to 28.0%) | Medium (10.0% to 14.0%) | Medium-High (11.0% to 15.0%) |
| Formability & Bending | Excellent (Austenitic) | Excellent (Austenitic) | Excellent (Austenitic) |
| Stock Availability | Current Grade | Explore SS 316L Coil & Strip → | Explore SS 317L Coil & Strip → |
Operating as a premier SS 904L Coil Supplier in India, SS 904L Strip Supplier in India, and global SS 904L Coil Exporter, we maintain active shipping routes across major industrial hubs:
Mumbai
Pune
Chennai
Faridabad
Saudi Arabia
Qatar
Oman
Kuwait
Germany
Italy
Netherlands
Poland
Singapore
Malaysia
Vietnam
Indonesia
Michigan
Illinois
Texas
Partnering with an experienced SS 904L Coil Supplier in India and SS 904L Strip Exporter ensures every batch dispatched from our ISO-certified facility undergoes thorough verification prior to shipment:
| Inspection Stage | Testing & Compliance Standard |
|---|---|
| Dimensional Verification | Calibrated micrometer checks for precise thickness (0.03–5.0 mm), slit width, and edge camber tolerances. |
| Chemical & PMI Testing | 100% In-House XRF Spectro testing to verify 23–28% Nickel, 4–5% Mo, and 1–2% Copper chemistry. |
| Mechanical & Hardness Testing | Tensile strength, yield proof, and elongation testing to match ASTM A240 standards. |
| Surface Inspection | Optical scanning to guarantee zero pinholes, scratches, rolling scale, or edge burrs on 2B, BA, and Mirror surfaces. |
| MTC & Certification | Full EN 10204 3.1 / 3.2 Material Test Certificates with NABL-accredited laboratory reports. |
| Third-Party Inspection | Pre-dispatch TPI available upon request via SGS, TUV, Bureau Veritas, DNV, or Lloyds. |
A: Grade 904L contains 1% to 2% added copper alongside 23-28% nickel, which allows the metal surface to repassivate in warm sulfuric acid solutions that rapidly dissolve standard 316L.
A: As a leading SS 904L Strip Supplier in India, we apply protective PE or fiber-laser film to the strip surface prior to slitting, preventing tool scratches during processing and transit.
A: SS 904L BA Strip offers a smoother, highly reflective surface that minimizes product adhesion and simplifies cleaning in chemical and pharmaceutical process lines.
A: It is classified as super austenitic because its combined high levels of chromium, nickel, molybdenum, and copper provide corrosion resistance far exceeding standard 300-series alloys.
A: As an active SS 904L Coil and Strip Exporter, we regularly ship certified stock to Saudi Arabia, UAE, Qatar, Oman, Kuwait, Germany, Italy, Poland, Singapore, Malaysia, Vietnam, Indonesia, and the United States.
Contact Nirvaan Overseas—your trusted SS 904L Coil Supplier in India, SS 904L Strip Supplier in India, and global SS 904L Strip Exporter—for factory-direct quotes, custom slitting, surface film protection, EN 10204 3.1 MTCs, and fast worldwide shipment. If you have any questions about the products or services, send us an