Ten years' experience in factory production
A variety of sizes for choose
Passed ISO9001:2000
Excellent after-sales
OEM
Port: CN air or sea port
Minimum Order Quantity: 1 Piece/Pieces
Supply Ability: 1000 Piece/Pieces per Month
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Contact SupplierPackaging Detail: Standard package or upon clients' requirements
Delivery Detail: 7-10days
Table on Drilling Parameter of Gun Drill Machine | |||||||||
ISO | Material | Special cutting force N/ mm2 | Brinell hardness HB | Cutting speed V,m/min | Diameter of drill, mm | ||||
0.98-3.00 | 3.00-6.30 | 6.00-12.50 | 12.50-40.50 | ||||||
Feed rate, mm/r | |||||||||
P steel | Un-alloyed | Non-quenched0.1-0.25‰ | 2000 | 90-200 | 60-120 | 0.003-0.010 | 0.005-0.030 | 0.015-0.055 | 0.020-0.110 |
Non-quenched0.25-0.55‰ | 2100 | 50-120 | 0.003-0.010 | 0.005-0.030 | 0.015-0.055 | 0.020-0.110 | |||
Non-quenched0.55-0.80‰ | 2180 | 150-250 | 40-100 | 0.003-0.010 | 0.004-0.025 | 0.010-0.050 | 0.020-0.100 | ||
Low alloy | Non-quenched | 2100 | 150-260 | 40-120 | 0.003-0.010 | 0.004-0.030 | 0.010-0.055 | 0.020-0.110 | |
Quenching and tempering | 2775 | 220-450 | 40-120 | 0.003-0.010 | 0.004-0.025 | 0.010-0.050 | 0.020-0.100 | ||
High alloy | Annealing | 2500 | 150-250 | 40-100 | 0.003-0.010 | 0.004-0.025 | 0.010-0.050 | 0.020-0.100 | |
Quenching tool steel | 3750 | 250-350 | 50-100 | 0.003-0.010 | 0.005-0.025 | 0.015-0.050 | 0.030-0.100 | ||
High cast steel | Un-alloyed | 1800 | 90-225 | 50-120 | 0.003-0.010 | 0.005-0.030 | 0.015-0.055 | 0.020-0.110 | |
Low alloy(alloying element<5%) | 2100 | 150-250 | 40-100 | 0.003-0.010 | 0.004-0.025 | 0.010-0.050 | 0.020-0.100 | ||
Stainless steel | Tracked/forged | Ferrite and martensite | 2300 | 150-270 | 40-90 | 0.003-0.008 | 0.004-0.025 | 0.010-0.040 | 0.020-0.100 |
Non-quenched | |||||||||
Tracked/forged | Austenite | 2600 | 150-275 | 40-90 | 0.003-0.008 | 0.004-0.025 | 0.010-0.040 | 0.020-0.100 | |
K cast iron | Malleable cast iron | Ferrite | 950 | 110-145 | 70-90 | 0.005-0.010 | 0.008-0.030 | 0.020-0.070 | 0.050-0.190 |
Pearlite | 1100 | 150-270 | 60-90 | 0.004-0.010 | 0.006-0.030 | 0.010-0.070 | 0.030-0.790 | ||
Grey cast iron | Low tensile strength, | 1100 | 150-220 | 60-90 | 0.004-0.010 | 0.006-0.030 | 0.010-0.070 | 0.030-0.190 | |
High tensile strength | 1290 | 200-330 | 15-90 | 0.003-0.010 | 0.003-0.030 | 0.005-0.070 | 0.010-0.190 | ||
Ductile cast iron | Ferrite | 1050 | 125-230 | 70-90 | 0.005-0.010 | 0.006-0.030 | 0.020-0.070 | 0.050-0.190 | |
Pearlite | 1750 | 200-300 | 60-90 | 0.004-0.010 | 0.006-0.030 | 0.010-0.070 | 0.030-0.190 | ||
N non-ferrous metal | Alloy | Casting, non aging | 750 | 40-100 | 65-300 | 0.005-0.015 | 0.005-0.030 | 0.020-0.070 | 0.030-0.150 |
Steel and steel alloy | Free-cutting alloy pb>1% | 700 | 70-160 | 65-300 | 0.005-0.015 | 0.005-0.040 | 0.020-0.070 | 0.030-0.150 | |
Copper, leaded bronze pb≤1% | 700 | 50-200 | 65-300 | 0.005-0.015 | 0.006-0.040 | 0.020-0.070 | 0.030-0.150 |
We sincerely welcome customers from all over the world and want to establish long time business relationship with all of you.
For more details, please contact us.
Trade manager account: cn.1000601983
Website: www.sxbangyu.en.alibaba.com