UNS S30400 : ASTM A182 (VO1.01), A276 (VO1.03), A479 (VO1.03), BS EN 10088
General scope
304L is an austenitic stainless steel from the 300 series 18/8 family. 304L is similar in composition to 316L. Nickel and Chromium are slightly modified and there is no Molybdenum addition.
Normally supplied Solution Annealed/Treated although it can be supplied cold worked with higher strength properties. The "L" grade has a reduced carbon level to improve corrosion resistance after welding, and generally is more commonly available.
NACE MR0175 - 2003 "general use" approval now limits the maximum environmental temperature to 140°F (60°C).
Chemical composition
| C | Si | Mn | P | S | Cr | Ni | Mo | N | Fe | |
|---|---|---|---|---|---|---|---|---|---|---|
| Min | • | • | • | • | • | 18.00 | 8.00 | • | • | 0.00 |
| Max | 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 20.00 | 10.50 | • | 0.10 | 0.00 |
Mechanical properties
Condition: Solution Annealed
| U.T.S | 75 KSI Min | (515 N/mm2) |
|---|---|---|
| 0.2% Proof Stress | 30 KSI Min | (205 N/mm2) |
| Elongation | 30 % | |
| Red of Area | 50 % | |
| CVN Impacts @ -75°C (-100°F) | 135 Joules | (100 ft-lbf) |
| Size range: 1/2”∅ - 12”∅ |
|---|
Primarily manufactured in:
- Dubai, UAE
- Edmonton, Canada
- Houston, Texas
- Sheffield, UK
- Cumbernauld, UK
- Singapore
- Malaysia