SS304L Stainless Steel
SS304L is the low-carbon version of SS304, combining general corrosion resistance, formability and weldability with reduced susceptibility to chromium carbide precipitation during welding.
SS304L Grade Information
SS304L is the low-carbon version of SS304, combining general corrosion resistance, formability and weldability with reduced susceptibility to chromium carbide precipitation during welding.
Aerospace flat-product specification for SS304L. Review the material identity, supply condition and reference properties before preparing an enquiry.
| Material specification | AMS 5511 |
|---|---|
| Material identification | S30403 |
| Product / supply condition | Solution heat treated; verify thickness, finish and ordered revision. |
SS304L Stainless Steel Chemical Composition
Manufacturer typical composition, mass %; selected elements only.
| Element / description | Mass % / reference value |
|---|---|
| C | 0.02 |
| Cr | 18.1 |
| Ni | 8.1 |
| Mo | — |
| Other | — |
SS304L Stainless Steel Mechanical Properties
Published reference values for the stated form and condition. Typical values are not specification acceptance limits.
| Product form / condition | Tensile (MPa) | 0.2% proof / yield (MPa) | Elongation (%) | Data basis |
|---|---|---|---|---|
| Hot-rolled plate, usually 10–20 mm, transverse; room temperature | 580 | 260 | 55 | Manufacturer typical values; elongation A5. |
Manufacturer reference data is shown for comparison. Use the selected AMS 5511 edition and certified material test results for acceptance. Confirm specimen direction, gauge length, thickness and heat treatment.
AMS 5511 Grade Reference
S30403
| Material specification | AMS 5511 |
|---|---|
| Source edition | AMS5511L |
| Product / supply condition | Solution heat treated; verify thickness, finish and ordered revision. |
| Comparison tables | View the AMS 5511 comparison tables |
| Material overview | View SS304L in Materials |
| Publisher reference | AMS 5511 publisher reference |
| Source reference | Parker Aerospace — controlled specification list (AMS forms and conditions) |
| Source reference | Outokumpu — Steel Grades, Properties and Global Standards, Tables 4, 5 and 7 |
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