Differences between 304, 304L, 316, and 316L
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Who knows the differences between 304, 304L, 316, and 316L? Under what circumstances should which material be chosen?
What are the differences between 304L and 304, as well as between 316L and 316? http://bbs.hcbbs.com/thread-268473-1-1.html (Source: Haichuan Chemical Industry Forum). Take a look at this thread.
1. Chemical composition: Carbon content is 0.08% without L, and 0.03% with L (i.e., low carbon). The contents of other elements are almost the same. 2. Mechanical properties: Rp0.2; Rp1.0; Rm values vary. The σ used in natural computing is different. As for the application scenarios, one can either rely on past usage experience or consult a corrosion manual to determine which media are suitable.
Simply put, those with L indicate low carbon, C
Thank you to all the teachers for your replies; I appreciate it.
316 316L 304 304L 0Cr17Ni12Mo2 00Cr17Ni14Mo2 1Cr18Ni9Ti 00Cr19Ni10 Carbon C: ≤0.08 Carbon C: ≤0.03 Carbon C: ≤0.15 Carbon C: ≤0.3 Silicon Si: ≤1.00 Silicon Si: ≤1.00 Silicon Si: ≤1.00 Silicon Si: ≤1.00 Manganese Mn: ≤2.00 Manganese Mn: ≤2.00 Manganese Mn: ≤2.00 Manganese Mn: ≤2.00 Sulfur S: ≤0.030 Sulfur S: ≤0.030 Sulfur S: ≤0.030 Sulfur S: ≤0.030 Phosphorus P: ≤0.045 Phosphorus P: ≤0.045 Phosphorus P: ≤0.035 Phosphorus P: ≤0.035 Nickel Ni: 12–15 Nickel Ni: 10–14 Nickel Ni: 8–10 Nickel Ni: 8–11 Chromium Cr: 16–18 Chromium Cr: 16–18 Chromium Cr: 17–19 Chromium Cr: 18–20 Molybdenum Mo: 2.00–3.00 Molybdenum Mo: 2.00–3.00 The allowable stress at room temperature is 137 MPa. The allowable stress at room temperature is 118 MPa. No post-weld annealing is required