SS 904L Sheet & Plate Supplier in Gujarat
Super-austenitic 904L sheets and plates for sulphuric acid, phosphoric acid and sea-water service — delivered all over India.
SS 904L Sheet & Plate — Vadodara stock, delivered all over India
904L is a super-austenitic stainless steel with 23–28% nickel, 4–5% molybdenum and 1–2% copper. The copper gives it excellent resistance to sulphuric acid, and the high molybdenum resists pitting in chlorides and sea water.
Chemical, fertiliser and pharma plants in Ankleshwar, Dahej, Bharuch and Surat use 904L where 316L and 317L fail. We supply 904L sheets and plates from Vadodara, with mill test certificates.
Applications
- Sulphuric acid plants
- Phosphoric acid and fertiliser plants
- Sea-water cooling
- Pulp bleaching
- Pharma and fine chemicals
SS 904L Sheet & Plate specifications
| Grade | SS 904L — UNS N08904, EN 1.4539, X1NiCrMoCu25-20-5 |
|---|---|
| Thickness | Sheet 0.5 – 6 mm, plate 6 – 50 mm |
| Sizes | 1000 × 2000, 1250 × 2500, 1500 × 3000 mm; cut to size |
| Finish | 2B, No.1 |
| Specification | ASTM B625, A240 / ASME SB625, SA240 |
| Test certificate | EN 10204 3.1; PMI and TPI on request |
Grades available
| Grade | EN | UNS | Tensile (MPa, min) | Yield (MPa, min) | Typical use |
|---|---|---|---|---|---|
| SS 904L 904L Sheet | 1.4539 | N08904 | 490 | 220 | Sulphuric and phosphoric acid plants |
| SS 317L 904L Sheet | 1.4438 | S31703 | 515 | 205 | Flue-gas desulphurisation (FGD) systems |
| SS 316L 904L Sheet | 1.4404 | S31603 | 485 | 170 | Pharma reactors and vessels |
| Duplex 2205 904L Sheet | 1.4462 | S32205 / S31803 | 655 | 450 | Oil and gas piping |
Values are typical minimums per ASTM A240 for flat products; long products follow A276 / A479. Actual values are on the mill test certificate.
How to calculate SS 904L Sheet weight
Weight (kg) = L (m) × W (m) × T (mm) × 7.95. A 1250 × 2500 mm 904L sheet, 3 mm thick, weighs about 74.5 kg.
SS 904L Sheet & Plate — FAQs
Why use 904L instead of 316L?
In sulphuric acid, phosphoric acid and warm chloride solutions 316L can corrode quickly. 904L's copper and high nickel and molybdenum make it far more resistant.
Is 904L a nickel alloy?
It is a super-austenitic stainless steel — high in nickel (23–28%) but still iron-based. For even more severe service, see Alloy 20 or Hastelloy C-276.
Do you deliver 904L all over India?
Yes. We deliver 904L sheets and plates all over India with mill test certificates.
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Get today's SS 904L Sheet & Plate rate
Tell us the grade, size, finish and quantity. We check stock and send a per-kg rate with dispatch date — usually the same working day.
- Rates direct from Vadodara stock
- Mill test certificate with every lot
- Cut-to-size and delivery all over India