What Is The Difference Between 316 And 316L SS Steel Pipe?

The difference between 316 and 316L stainless steel composition, grade and heat resistance.

1. Different ingredients
1. 316l: C≤0.03, Si≤1.00, Mn≤2.00, P≤0.035, S≤0.03, Ni:10.0-14.0, Cr:16.0-18.5, Mo:2.0-3.0.
2. 316: C≤0.08, Si≤1.00, Mn≤2.00, P≤0.035, S≤0.03, Ni:10.0-14.0, Cr:16.0-18.5, Mo:2.0-3.0.
2. Different grades
1. 316l: The old grade is 00Cr17Ni14Mo2, and the grade is 022C17N12M2, which is TP316L and Japanese SUS316L.
2. 316: The old grade is 0Cr17Ni12Mo2, and the new grade is 06C17N12M2, which is the American standard TP316 and the Japanese standard SUS316.

3. Different heat resistance
1. 316l: 316L stainless steel has better resistance to carbide precipitation than 316 stainless steel, and can also be used in the temperature range of 800-1575 degrees.
2. 316: 316 material can be used intermittently below 1600 degrees and continuously below 1700 degrees, but it is best not to use 316 stainless steel in the range of 800-1575 degrees.