Grade | Dia(mm) | Chemical Composition (%) | |||||||||
C | Si | Mn | P | S | Ni | Cr | Cu | Ti | Mo | ||
18-60 | |||||||||||
40Mn2 | 0.37-0.44 | 0.17-0.37 | 1.40-1.80 | ≤0.035 | ≤0.035 | ≤0.30 | |||||
20CrMnTi | 0.17-0.23 | 0.17-0.37 | 0.80-1.10 | ≤0.035 | ≤0.035 | 1.00-1.30 | 0.04-0.10 | ||||
20CrMo | 0.17-0.24 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.80-1.10 | 0.15-0.25 | ||||
30CrMo | 0.26-0.34 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.80-1.10 | 0.15-0.25 | ||||
35CrMo | 0.32-0.40 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | 0.80-1.10 | 0.15-0.25 | ||||
42CrMo | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | 0.90-1.20 | 0.15-0.25 | ||||
60Si2MnA | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | 0.90-1.20 |
Grade | Mechanical property (Quenching, tempering, longitudinal) | |||||
Tensile strength (σb/MPa) | Yield strength (σs/MPa) | Elongation (δ5/%) | Elongation (δ10/%) | Percentage reduction of area (ψ/%) | Impact absorbing energy (AkU2/J) | |
40Mn2 | ≥885 | ≥735 | ≥12 | ≥45 | 55 | |
20CrMnTi | ≥1080 | ≥850 | ≥10 | ≥45 | 55 | |
20CrMo | ≥885 | ≥685 | ≥12 | ≥50 | 78 | |
30CrMo | ≥930 | ≥785 | ≥12 | ≥50 | 63 | |
35CrMo | ≥980 | ≥835 | ≥12 | ≥45 | 63 | |
42CrMo | ≥1080 | ≥930 | ≥12 | ≥45 | 63 | |
60Si2MnA | ≥1274 | ≥1176 | ≥5 | ≥25 | - |
Length | 1m-12m ,by customer's requirements |
Ends | Plain, Beveled, Thread With Couplings Or Sockets;Plastic Caps And Steel Rings Can Be Provided If Possible |
Shaped | Oval, Triangle, Hexagonal, Diamond, Octagonal, Semicircle, Unequal hexagonal, etc., as the drawings offered by the clients |
Packing | 1) Big OD:in bulk |
2)Small OD:packed by steel strips | |
3)woven cloth with slats | |
4)according to the requirements of customers | |
Usage | Mainly suitable for drills, end mills, reamers. It can also be used for cutting, punching and measuring tools. It is used in papermaking, packaging, printing, and non-ferrous metal processing industries. |