316 vs 316L Difference Between TP316 and TP316L
1. Difference in Chemical Composition:
316L is an ultra-low-carbon stainless steel, while 316 stainless steel is a low-carbon stainless steel, not an ultra-low-carbon stainless steel.
| Grade | – | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| TP316L | min.max. | -0.035 | -2.0 | -1.00 | -0.045 | -0.030 | 16.0-18.0 | – | 10.0-14.0 | – |
| 316 | min.max. | -0.08 | -2.0 | -1.00 | -0.040 | -0.030 | 16.0-18.0 | – | 10.0-14.0 | – |
2. Different in Yield Strength and Tensile Strength
According to ASME SA213,
for Tensile Strength, TP316L 485 min (N/MM2), 316 515 min (N/MM2).
for Yield Strength, TP316L 170min (N/MM2), 316 205 min (N/MM2).
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