ASTM A240 Gr. 316/316L Stainless Steel Plates
Difference between 316 and 316L Stainless Steel
In ASTM A240, types 316 and 316L are stainless steels with chromium and nickel. The big advantage? They have added molybdenum, which boosts their corrosion resistance—making them tougher against rust than 304 or 304L stainless steels. Now, 316L has a bit less carbon than 316, so it’s just as strong but easier to work with for welding. This lower carbon helps prevent carbide buildup during welding, so it’s often the top choice for jobs that need weld treatments.
Stainless Steel 316L is an extra-low-carbon modification of Type 316. It has low sensitization properties. Type 316 applications are typically those that require extensive welding.
Grade 316-316L Steel Plate Properties
| GRADE | SHAPE | THICKNESS | SPECIFICATION |
| 316 | PLATE | 3/16" - 6" | AMS 5507 / ASTM A-240 |
| 316L | PLATE | 3/16" - 6" | AMS 5524 / ASTM A-240 |
Chemical Composition of 316/316L Steel Plate
| Chemical Composition of 316/316L steel | ||
|---|---|---|
| Element | 316 | 316L |
| C | 0.08 | 0.030 max |
| Cr | 16.0-18.0 | 16.0-18.0 |
| Ni | 10.0-14.0 | 10.0-14.0 |
| Mo | 2.00-3.00 | 2.00-3.00 |
| Mn | 2.00 | 2.00 |
| Si | 0.75 | 0.75 |
| Ni | 0.10 | 0.10 |
| P | 0.045 | 0.045 |
| S | 0.030 | 0.030 |
| Mechanical Property of 316/316l | 316 | 316L |
|---|---|---|
| Yield Strength, min. (ksi) | 30 | 25 |
| Tensile Strength, min. (ksi) | 75 | 70 |
| Elongation, min. (%) | 40 | 40 |
| Hardness, max. (Rb) | 95 | 95 |
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