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Raise boring drill rod drill pipe size 8"~12-7/8" W89
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Meorient Import & Export Co.LTD
China - Hangzhou
Trading Company
Trade Capacity
Export Percentage
Nearest Port
Hangzhou,Shanghai
Accepted Delivery Terms
Employees
5-10人
Accepted Payment Currency
USD,CNY
Average Lead Time
45 Day(s)
Certifications
Product Specifications
--Product Description
Product : Raise boring drill pipe / drill rod
Application : mine ore shaft ,undergound tunnelling ,
Production procedure : Hot forging + heat treatment + machining
| Grade | Chemical Composition %(weight) | ||||||||
| C | Si | P | S | Cr | Ni | Mo | V | O2(max) | |
| 4330V | 0.26~0.34 | 0.15~0.35 | 0.015 | 0.015 | 0.75~1.00 | 2.0~3.0 | 0.20~0.30 | 0.05~0.15 | 20ppm |
| Nominal size | shoudler to first spanner flat | Width of spanner flat | shoudler to end of spanner flats | Dimension across spannerflat | Connections* | Weight |
| A | F | G | H | |||
| in mm | in mm | in mm | in mm | in mm | kg | |
| 8" 203.2 | 1 1/2" 38.1 | 2 3/4" 69.9 | 8 1/4" 209.6 | 6 7/8" 174.6 | 6 3/4" R.B.-DI22 | 170 |
| 10" 254 | 1 1/2" 38.1 | 2 3/4" 69.9 | 8 1/4" 209.6 | 8" 203.2 | 8 1/4" R.B.-DI22 | 345 |
| 11 1/4" 286.8 | 1 1/2" 38.1 | 3 1/2" 88.9 | 10" 254 | 9" 228 | 9 1/4" R.B.-DI22 | 480 |
| 12 7/8" 323.9 | 1 9/16" 39.7 | 3 15/16" 100 | 11" 279 | 10 1/2" 266.7 | 10 1/2" R.B.-DI22 | 640 |
| 12 7/8" 323.9 | 1 9/16" 39.7 | 3 15/16" 100 | 11" 279 | 10 1/2" 266.7 | 10 1/2" R.B.-DI22 | 1270 |
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