SS 904L Stainless Steel
High-alloy super-austenitic grade with copper and molybdenum for sulphuric acid and severe chloride environments.
Chemical composition of SS 904L (%)
| C | Mn | Si | P | S | Cr | Ni | Mo | Cu | N |
|---|---|---|---|---|---|---|---|---|---|
| 0.020 max | 2.00 max | 1.00 max | 0.045 max | 0.035 max | 19.0 – 23.0 | 23.0 – 28.0 | 4.0 – 5.0 | 1.0 – 2.0 | 0.10 max |
Mechanical properties
| Tensile strength (min) | 490 MPa |
|---|---|
| Yield strength 0.2% (min) | 220 MPa |
| Elongation (min) | 35% |
| Hardness (max) | 90 HRB max |
| Density | 7.95 g/cm³ |
Equivalent grades
| ASTM / AISI | UNS | EN / W.Nr. | DIN | JIS |
|---|---|---|---|---|
| 904L | N08904 | 1.4539 | X1NiCrMoCu25-20-5 | SUS 890L |
Applications of SS 904L
- Sulphuric and phosphoric acid plants
- Sea-water cooling
- Pulp bleaching
- Pharma and fine chemicals
Our advice
904L costs much more than 316L but survives acids that would attack 316L quickly.
Values are typical ASTM A240 limits for flat products and are for guidance only. Always refer to the mill test certificate supplied with the material.
SS 904L — FAQs
What is the chemical composition of SS 904L?
SS 904L contains C 0.020 max%, Mn 2.00 max%, Si 1.00 max%, P 0.045 max%, S 0.035 max%, Cr 19.0 – 23.0%, Ni 23.0 – 28.0%, Mo 4.0 – 5.0%, Cu 1.0 – 2.0%, N 0.10 max% (typical ASTM A240 limits).
What is the equivalent of SS 904L?
SS 904L is UNS N08904, EN 1.4539 (X1NiCrMoCu25-20-5) and SUS 890L in the Japanese standard.
What is the density of SS 904L?
The density of SS 904L is about 7.95 g/cm³ (7950 kg/m³).
Where can I buy SS 904L in Vadodara?
Sagar Sales Corporation supplies SS 904L plate, pipe, flanges in Vadodara with mill test certificates. Contact us for today's rate.
Get today's SS 904L rate
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