20Cr13不锈钢圆棒化学成分：
碳 C ：0.16～0.25
硅 Si：≤1.00
锰 Mn：≤1.00
硫 S ：≤0.030
磷 P ：≤0.035
铬 Cr：12.00～14.00
镍 Ni：允许含有≤0.60
20Cr13不锈钢圆棒力学性能：
抗拉强度 σb (MPa)：淬火回火,≥635
条件屈服强度 σ0.2 (MPa)：淬火回火,≥440
伸长率 δ5 (％)：淬火回火,≥20
断面收缩率 ψ (％)：淬火回火,≥50
冲击功 Akv (J)：淬火回火,≥63
硬度 ：退火,≤223HB;淬火回火,≥192HB
20Cr13不锈钢圆棒热处理规范：1)退火,800～900℃缓冷或约750℃快冷;2)淬火,920～980℃油冷;3)回火,600～750℃快冷。
金相***：***特征为马氏体型。
★ 欧洲标准化***会(CEN)不锈钢和耐热钢:
X2CrNi12 X2CrTi12 X6CrNiTi12 X6Cr13 X6CrAl13 X2CrTi17 X6Cr17 X3CrTi17 X1CrNb15 X3CrNb17 X6CrMo17-1 X6CrMoS17 X2CrMoTi17-1 X2CrMoTi18-2 X2CrMoTiS18-2 X6CrNi17-1 X5CrNiMoTi15-2 X6CrMoNb17-1 X2CrNbZr17 X2CrTiNb18 X2CrMoTi29-4 1.4003 1.4512 1.4516 1.4000 1.4002 1.4520 1.4016 1.4510 1.4595 1.4511 1.4113 1.4105 1.4513 1.4521 1.4523 1.4017 1.4589 1.4526 1.4590 1.4509 1.4592 X12Cr13 X12CrS13 X15Cr13 X20Cr13 X30Cr13 X29CrS13 X39Cr13 X46Cr13 X46CrS13 X38CrMo14 X55CrMo14 X50CrMoV15 X70CrMo15 X40CrMoVN16-2 X14CrMoS17 X39CrMo17-1 X105CrMo17 X90CrMoV18 X17CrNi16-2 X1CrNiMoCu12-5-2 X2CrNiMoV13-5-2 X3CrNiMo13-4 X4CrNiMo16-5-1 X1CrNiMoAlTi12-9-2 X1CrNiMoAlTi12-10-2 X5CrNiCuNb16-4 X7CrNiAl17-7 X5CrNiMoCuNb14-5 X5NiCrTiMoVB25-15-2 1.4006 1.4005 1.4024 1.4021 1.4028 1.4029 1.4031 1.4034 1.4035 1.4419 1.4110 1.4116 1.4109 1.4123 1.4104 1.4122 1.4125 1.4112 1.4057 1.4422 1.4423 1.4415 1.4313 1.4418 1.4530 1.4596 1.4542 1.4568 1.4594 1.4606 X5CrNi17-7 X10CrNi18-8 X9CrNi18-9 X2CrNiN18-7 X2CrNi18-9 X2CrNi19-11 X5CrNiN19-9 X2CrNiN18-10 X5CrNi18-10 X8CrNiS18-9 X6CrNiTi18-10 X6CrNiNb18-10 X4CrNi18-12 X1CrNi25-21 X2CrNiMo17-12-2 X2CrNiMoN17-11-2 X5CrNiMo17-12-2 X1CrNiMoN25-22-2 X6CrNiMoTi17-12-2 X6CrNiMoNb17-12-2 X2CrNiMo17-12-3 X2CrNiMoN17-13-3 X3CrNiMo17-13-3 X3CrNiMo18-12-3 X2CrNiMo18-14-3 X2CrNiMoN18-12-4 X2CrNiMo18-15-4 X2CrNiMoN17-13-5 X1CrNiMoCuN24-22-8 X1CrNiSi18-15-4 X11CrNiMnN19-8-6 X12CrMnNiN17-7-5 X2CrMnNiN