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What materials used in drill bits and drill rods?
30 Dec 2016
Prodrill steel materials used in manufacturing drill bits and drill rods
1. Drill bits
1) Threaded drill bits: 42CrMo, 45CrNiMo1V
2) Tapered drill bits: 42CrMo, 45CrNiMo1V
3) Reaming bits
R32-76mm, 12 buttons: 45CrNiMo1V
R32-76mm, 15 buttons: 45CrNiMo1V
R32-102mm, 15 buttons: 43CrMo
2. Drill rods
1) Tapered drill rods (7 degree, 12 degree)
80Cr, 95CrMo, 55SiMnMo, 40SiMnCrNiMo
95CrMo, 55SiMnMo, 40SiMnCrNiMo
3) Drifter rods / drifting drill steel (with Male-Male thread or Male-Female thread, R32, T38)
23CrNi3Mo, 22SiMnCrNiMo
4) Extension drill rods / round drill steels (with Male-Male, Male-Female thread, T51, GT60)
23CrNi3Mo, 22SiMnCrNiMo
5) Hollow drill steel / Hot rolled Hexagonal drill rod ( with shank B22*108)
80Cr, 95CrMo, 55SiMnMo
6) Coupling Sleeve (Semi-bridge, full bridge)
40Cr, 23CrNi3Mo