PDF《隆兴铸业常规材料标准》

345 22

27 GB 14MnNb 0.12-0.18 0.20-0.55 0.80-1.20 0.045 0.045 490-640

355 21

27 GB 16Mn 0.12-0.20 0.20-0.55 1.20-1.60 0.045 0.045 510-660

345 22

27 GB 16MnRE 0.12-0.20 0.20-0.55 1.20-1.60 0.045 0.045 510-660

345 22

27 GB 10MnPNbRE ≤0.14 0.20-0.55 0.80-1.20 0.06-0.12 0.045 510-660

390 20

27 GB 15MnV 0.12-0.18 0.20-0.55 1.20-1.60 0.045 0.045 0.04-0.12 550-700

410 19

27 GB 15MnTi 0.12-0.18 0.20-0.55 1.20-1.60 0.045 0.045 530-680

390 20

27 GB 16MnNb 0.12-0.20 0.20-0.55 1.00-1.40 0.045 0.045 530-680

390 20

27 GB 14MnVTiRE ≤0.18 0.20-0.55 1.30-1.60 0.045 0.045 0.04-0.10 550-700

440 19

27 GB 15MnVN 0.12-0.20 0.20-0.55 1.30-1.70 0.045 0.045 0.10-0.20 590-740

440 19

27 GB 20Mn2 0.17-0.24 0.17-0.37 1.40-1.80 ≤0.30 ≤0.30

785 590

10 40

47 187 Q+T GB 30Mn2 0.27-0.34 0.17-0.37 1.40-1.80 ≤0.30 ≤0.30

785 635

12 45

63 207 Q+T GB 35Mn2 0.32-0.39 0.17-0.37 1.40-1.80 ≤0.30 ≤0.30

835 682

12 45

55 207 Q+T GB 40Mn2 0.37-0.44 0.17-0.37 1.40-1.80 ≤0.30 ≤0.30

885 735

12 45

55 217 Q+T GB 45Mn2 0.42-0.49 0.17-0.37 1.40-1.80 ≤0.30 ≤0.30

885 735

10 45

47 217 Q+T GB 50Mn2 0.47-0.55 0.17-0.37 1.40-1.80 ≤0.30 ≤0.30

930 785

9 40

39 229 Q+T GB 20MnV 0.17-0.24 0.17-0.37 1.30-1.60 ≤0.30 ≤0.30 0.07-0.12

785 590

10 40

55 187 Q+T GB 30Mn2MoW 0.27-0.34 0.17-0.37 1.70-2.00 ≤0.30 ≤0.30 0.40-0.50

980 835

12 50

71 269 Q+T GB 27SiMn 0.24-0.32 1.10-1.40 1.10-1.40 ≤0.30 ≤0.30

980 835

12 40

39 217 Q+T GB 35SiMn 0.32-0.40 1.10-1.40 1.10-1.40 ≤0.30 ≤0.30

885 735

15 45

47 229 Q+T GB 42SiMn 0.39-0.45 1.10-1.40 1.10-1.40 ≤0.30 ≤0.30

885 735

15 40

47 229 Q+T GB 20SiMn2MoV 0.17-0.23 0.90-1.20 2.20-2.60 ≤0.30 ≤0.30 0.30-0.40 0.05-0.12

1375 10

45 55

269 Q+T GB 25SiMn2MoV 0.22-0.28 0.90-1.20 2.20-2.60 ≤0.30 ≤0.30 0.30-0.40 0.05-0.12

1470 10

40 47

269 Q+T GB 37SiMn2MoV 0.33-0.39 0.60-0.90 1.60-1.90 ≤0.30 ≤0.30 0.40-0.50 0.05-0.12

980 835

12 50

63 269 Q+T GB 40B 0.37-0.44 0.17-0.37 0.60-0.90 ≤0.30 ≤0.30 0.0005-0.0035

785 635

12 45

55 207 Q+T GB 45B 0.42-0.49 0.17-0.37 0.60-0.90 ≤0.30 ≤0.30 0.0005-0.0035

835 685

12 45

47 217 Q+T (2)GB标准低合金结构钢 (GB1591-88) 2.1.4 合金结构钢 (1)GB标准合金结构钢的钢号及化学成分(GB 3077-88) C Si Mn P ≤ S ≤ Cr Ni Mo Cu≤ V B CE Tensil Strength Mpa Yield strength Mpa Elongate rate % Reduction of area % Impact test J CHEMICAL COMPOSITION % MECHANICAL PROPERTIES ≥ Hardness HB Standard Material Heat treatment GB 50B 0.47-0.55 0.17-0.37 0.60-0.90 ≤0.30 ≤0.30 0.0005-0.0035

785 540

10 45

39 207 Q+T GB 40MnB 0.37-0.44 0.17-0.37 1.10-1.40 ≤0.30 ≤0.30

980 785

10 45

47 207 Q+T GB 45MnB 0.42-0.49 0.17-0.37 1.10-1.40 ≤0.30 ≤0.30

1030 835

9 40

39 217 Q+T GB 20Mn2B 0.17-0.24 0.17-0.37 1.50-1.80 ≤0.30 ≤0.30

980 785

10 45

55 187 Q+T GB 20MnMoB 0.16-0.22 0.17-0.37 0.90-1.20 ≤0.30 ≤0.30 0.20-0.30

1080 885

10 50

55 207 Q+T GB 15MnVB 0.12-0.18 0.17-0.37 1.20-1.60 ≤0.30 ≤0.37 0.07-0.12

885 635

10 45

55 207 Q+T GB 20MnVB 0.17-0.23 0.17-0.37 1.20-1.60 ≤0.30 ≤0.37 0.07-0.12

1080 885

10 45

55 207 Q+T GB 40MnVB 0.37-0.44 0.17-0.37 1.10-1.40 ≤0.30 ≤0.37 0.05-0.10

980 785

10 45

47 207 Q+T GB 20MnTiB 0.17-0.24 0.17-0.37 1.30-1.60 ≤0.30 ≤0.37 0.0005-0.0035

1130 930

10 45

55 187 Q+T GB 25MnTiBRE 0.22-0.28 0.20-0.45 1.30-1.60 ≤0.30 ≤0.30 0.0005-0.0035

1375 10

40 47

229 Q+T GB 20SiMnVB 0.17-0.24 0.50-0.80 1.30-1.60 ≤0.30 ≤0.30 0.07-0.12 0.0005-0.0035