15CrMoR and 15CrMoR (H) steel plate chemical composition

Introduction to 15CrMoR and 15CrMoR (H) material composition: "15" refers to 0.15% carbon content, "Cr" refers to that the composition contains a certain chemical element chromium, "Mo" refers to that the composition contains a certain chemical element molybdenum, and "R" refers to pressure vessel. 15CrMoR is a pressure vessel steel. 15CrMoR (H) is a hydrogen facing steel plate.

15CrMoR steel plate executive standard: GB/T713-2014

Chemical composition of 15CrMoR and 15CrMoR (H) steel plate:
15CrMoR steel plate chemical composition %:
C: 0.12-0.18，Si: 0.15-0.40，Mn: 0.40-0.70，P: ≤0.025，S: ≤0.010，Cr: 0.80-1.20，Mo: 0.3-0.60

15CrMoR (H) steel plate chemical composition
Melting analysis C: 0.12-0.18, Si: 0.15-0.40, Mn: 0.40-0.70, P ≤ 0.010, S ≤ 0.010, Cr: 0.80-1.20, Mo: 0.3-0.60, Ni ≤ 0.20, Cu ≤ 0.20, Sb ≤ 0.003, Sn ≤ 0.015, As ≤ 0.016, H ≤ 2ppm

Product analysis C: 0.10-0.20, Si: 0.13-0.43, Mn: 0.37-0.73, P ≤ 0.012, S ≤ 0.010, Cr: 0.75-1.25, Mo: 0.3-0.62, Ni ≤ 0.20, Cu ≤ 0.20, Sb ≤ 0.003, Sn ≤ 0.015, As ≤ 0.016, H ≤ 2ppm

15CrMoR and 15CrMoR (H) steel plate heat treatment usually adopts normalizing+tempering. Under 550 ℃, it has high durability.