904L Hot Rolled Stainless Steel Coil
Product Description
904L (UNS N08904/Werkstoff Nr. 1.4539) is a super austenitic stainless steel hot rolled coil, which is designed with high nickel (23-28%), molybdenum (4-5%) and copper (1.0-2.0%) alloys, and performs well in strong acid, chloride and high temperature environments.
904L stainless steel coil is much more resistant to sulfuric acid, phosphoric acid and organic acid corrosion than 316L, and is suitable for acidic media with pH<2. The surface finish is 2B/BA/NO.1, the maximum operating temperature is 600°C, and the oxidation resistance is better than ordinary austenitic stainless steel. It meets the ASME BPVC Section VIII pressure vessel standard and is ISO 9001/14001 certified.
UNS N08904 Hot Rolled Coil
904L Stainless Steel Coil Specifications
|
UNS Grade |
N08904 |
|
EN Grade |
1.4539 |
|
Thickness |
3.0mm–25.0mm (hot-rolled) |
|
Width |
1000mm, 1219mm (48"), 1500mm, 2000mm, 2500mm (customizable) |
|
Length |
Coil (continuous) – typically 4000–6000mm per loop; slit to length on request |
|
Inner Diameter |
φ610 mm (standard) |
|
Surface Finish |
2B (mill finish), BA (bright annealed), NO.1 (hot-rolled) |
|
Edge Type |
Slit (precision-cut) or Mill (original edge) |
|
Weight per Coil |
5–25 metric tons (adjustable based on thickness/width) |
|
Tolerances |
- Thickness: ±0.15mm (≤10mm), ±0.2mm (>10mm) |
|
Standard |
ASTM A240, EN 10088-2, JIS G4304, GB/T 1220 |
ASTM A240 904L Stainless Steel Coil Chemical Composition (Wt %)
|
Element |
Content |
|
Chromium (Cr) |
19.0-23.0 |
|
Nickel (Ni) |
23.0-28.0 |
|
Molybdenum (Mo) |
4.0-5.0 |
|
Copper (Cu) |
1.0-2.0 |
|
Carbon (C) |
≤0.020 |
|
Silicon (Si) |
≤1.0 |
|
Manganese (Mn) |
≤2.0 |
|
Phosphorus (P) |
≤0.045 |
|
Sulfur (S) |
≤0.030 |
High temperature resistant 904L stainless steel coil Physical Properties
|
Property |
Value |
|
Density |
8.1 g/cm³ |
|
Melting Point |
1300-1390°C |
|
Thermal Conductivity |
12.5 W/(m·K) |
|
Specific Heat |
460 J/(kg·K) |
904L hot rolled coil for pressure vessels Corrosion Resistance
|
Environment |
Resistance Level |
|
Sulfuric Acid (H₂SO₄) |
50-80% (Boiling) |
|
Chloride (Cl⁻) |
≤50,000 ppm |
|
Pitting Resistance |
PREN ≥33 |
904L Stainless Steel Coil Exporter
904L Stainless Steel Coil Custom Processing
FAQ
Q: Can 904L hot rolled coil be used in seawater environment?
A: It can resist seawater corrosion in the short term, but it is recommended to choose SMO 254 or Hastelloy with higher molybdenum content in the long term.
Q: What should be paid attention to when welding?
A: It is recommended to use ER385 welding wire, no preheating is required before welding, and pickling and passivation treatment is performed after welding.
Q: How much higher is the price than 316L?
A: The raw material cost is about twice that of 316L. The specific price varies according to the specifications, and bulk purchase discounts are supported.
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