Grade |
Diameter(mm) |
Standard |
C |
Si |
Mn |
P |
S |
Ni |
Cu |
Cr |
20 |
¢18-60 ¢50-130 ¢160-230 |
GB/T |
0.17-0.23 |
0.17-0.37 |
0.35-0.65 |
≤0.035 |
≤0.035 |
≤0.30 |
≤0.25 |
≤0.25 |
45 |
0.42-0.50 |
0.17-0.37 |
0.35-0.65 |
≤0.035 |
≤0.035 |
≤0.30 |
≤0.25 |
≤0.25 |
優質碳素結構圓管坯Quality Carbon Structural Steel Seamless Tube Blank
Grade |
Diameter(mm) |
Standard |
C |
Si |
Mn |
P |
S |
Ni |
Cu |
Cr |
10 |
¢50-130 ¢160-230 |
GB/T |
0.07-0.13 |
0.17-0.37 |
0.35-0.65 |
≤0.035 |
≤0.035 |
≤0.30 |
≤0.25 |
≤0.15 |
20 |
0.17-0.23 |
0.17-0.37 |
0.35-0.65 |
≤0.035 |
≤0.035 |
≤0.30 |
≤0.25 |
≤0.25 |
合金結構鋼Alloy Structure Steel
Grade |
Diameter(mm) |
Standard |
C |
Si |
Mn |
P |
S |
Ni |
Cu |
Cr |
Mo |
40Cr |
¢18-60 |
GB/T |
0.37-0.44 |
0.17-0.37 |
0.50-0.80 |
≤0.035 |
≤0.035 |
≤0.30 |
≤0.30 |
0.80-1.10 |
≤0.15 |
軸承鋼Bearing Steel
Grade |
Diameter(mm) |
Standard |
C |
Si |
Mn |
P |
S |
Ni |
Cu |
Cr |
O |
Mo |
GCr15 |
¢18-60 |
GB/T |
0.95-1.05 |
0.15-0.35 |
0.25-0.45 |
≤0.025 |
≤0.025 |
≤0.30 |
≤0.30 |
1.40-1.65 |
12*10ˉ6 |
≤0.10 |
GCr4 |
¢18-60 |
GB/T |
0.95-1.05 |
0.15-0.30 |
0.15-0.30 |
≤0.025 |
≤0.020 |
≤0.25 |
≤0.20 |
0.35-0.50 |
12*10ˉ6 |
≤0.08 |
GCr15SiMn |
¢18-60 |
GB/T |
0.95-1.05 |
0.45-0.75 |
0.95-1.25 |
≤0.025 |
≤0.025 |
≤0.30 |
≤0.25 |
1.40-1.65 |
12*10ˉ6 |
≤0.10 |
齒輪鋼Gear Steel
Grade |
Diameter(mm) |
Standard |
C |
Si |
Mn |
P |
S |
Ni |
Cu |
Cr |
V |
Ti |
Mo |
20CrMnTi |
¢18-60 |
GB/T |
0.17-0.23 |
0.17-0.37 |
0.80-1.10 |
≤0.035 |
≤0.035 |
≤0.30 |
≤0.30 |
≤1.00-1.30 |
0.04-0.10 |
≤0.15 |