Austenitic · Stainless Steel
304L Low-Carbon Austenitic Stainless Steel
Chemical composition and mechanical properties conform to ASTM A240; available dimensions are standard ranges.
① Chemical Composition (ASTM A240, %)
| Element | Range |
|---|---|
| C | ≤0.03 |
| Si | ≤0.75 |
| Mn | ≤2.00 |
| P | ≤0.045 |
| S | ≤0.030 |
| Cr | 18.0–20.0 |
| Ni | 8.0–12.0 |
② Mechanical Properties (ASTM A240)
| Property | Requirement |
|---|---|
| Tensile Strength Rm | ≥ 485 MPa |
| Yield Strength Rp0.2 | ≥ 170 MPa |
| Elongation A | ≥ 40% |
| Hardness | ≤ 201 HBW |
③ Available Dimensions (Standard Ranges)
- Thickness: 0.3–60 mm
- Width: ≤ 2000 mm
- Form: Plate / Sheet / Slab / Circle / Cut Strip on Request
- Surface: 2B · BA · No.1 · No.4 · HL · 8K on Request
④ Applicable Standards
ASTM A240 · EN 10088-2 · JIS G4304/4305 · GB/T 3280
⑤ Common Applications
Welded thick-wall components, large vessels, chemical equipment, piping, welded assemblies not heat-treated after welding
⑥ Substitution & Selection Advice
Lower strength than 304, but better resistance to intergranular corrosion after welding. If solution annealing is applied after welding, 304 is sufficient.
Chemical and mechanical data are taken from the general ASTM A240 standard. Available dimensions are standard ranges; the contract and technical agreement take precedence.