Rock drill steel rod for hard rock
Brief Introduction
1.Raw material: lt is 55SiMnMo or 95CrMo of 320*480 large-section continuous casting billets, then rolling into150*150 square billets after inserting core rods and seamless pipes.
2.Production process: involving multiple processes, such as steel rolling, forging, normalizing,.quenching andtempering, etc.
3.Shank size: H22*108mm/ H25*108mm/H25*159mm.4.Angle: 7 /11/12 degree.
5.Package: 5 pieces with a small bundle,50 or 100 pieces with a big bundle.
According to the different choices of customers, we offer four quality products, including Grade A,Grade B,GradeC and Grade D.Customers can choose suitable dirill rods according to different hardness of rock and various typesof rock drilling machines. Grade A drill rod QSAAA and GTIll can be applied to solid rocks Il level or above andf≥12rocks according to Protodikonov’s Hardness Coefficient of Rock. Grade B drill rod QSAA and G30 is suitable for IVvlevel or above and f≥12rocks, Grade C and Grade D drill rod suitable for lV level or below and f≤8 rocks.
Rock drill steel rod for hard rock
Brief Introduction
1.Raw material: lt is 55SiMnMo or 95CrMo of 320*480 large-section continuous casting billets, then rolling into150*150 square billets after inserting core rods and seamless pipes.
2.Production process: involving multiple processes, such as steel rolling, forging, normalizing,.quenching andtempering, etc.
3.Shank size: H22*108mm/ H25*108mm/H25*159mm.4.Angle: 7 /11/12 degree.
5.Package: 5 pieces with a small bundle,50 or 100 pieces with a big bundle.
According to the different choices of customers, we offer four quality products, including Grade A,Grade B,GradeC and Grade D.Customers can choose suitable dirill rods according to different hardness of rock and various typesof rock drilling machines. Grade A drill rod QSAAA and GTIll can be applied to solid rocks Il level or above andf≥12rocks according to Protodikonov’s Hardness Coefficient of Rock. Grade B drill rod QSAA and G30 is suitable for IVvlevel or above and f≥12rocks, Grade C and Grade D drill rod suitable for lV level or below and f≤8 rocks.
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