
Oil Drill Pipe 4-1/2 API SPEC 5DP with Higher Tensile Performance Straightness
Oil drill pipe
We can supply all kinds of drill pipes that are consistent with API
SPEC 5DP or SY.
Drill pipes can be made as customers' requirements and be equipped
with the same type of tool joints.
Advanced drill pipe production lines can transfer the welding
parameters to the best position to ensure the quality of welding
zone; the heat treatment process with the feature of internal and
external cooling at the same time can make a more reliable and
stable mechanical character. Application of automatic weight,
length measurement and automatic spray records can ensure products'
traceability. Application of thickening and heating lines and 1250
tons of upsetting machine can ensure the thickening size meet the
standard of API SPEC 5DR Using of CN furnace for whole pipe body
heating and quenching, tempering machine's advanced heat treatment
process can ensure the pipe's mechanical character. Tube hydraulic
straightening machine ensures the straightness and coaxiality of
pipe body.
Standard drill pipe specifications
Spec | OD of drill pipe body | Wall thickness of drill pipe | OD of welding neck | Tool joint | RSC chamfer diameter | Approximation quality | |||||||
OD | internal diameter of male thread | lenght of male thread's OD | lenght of female thread's OD | ||||||||||
NO.1 | NO.1 | grade | upset | RSC | Ddp mm | t mm | Dteb mm | D mm | dp mm | Lpb mm | Lb mm | Df mm | Wdp kg/m |
A.2 | -12.5% | MAX | ±0.8 | +0.4 -0.8 | ±6.4 | ±6.4 | ±0.4 | Calculated | |||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 |
IU | |||||||||||||
4 | 14.00 | E | IU | NC40 | 101.60 | 8.38 | 106.4 | 133.4 | 71.4 | 177.80 | 254.00 | 127.40 | 22.42 |
4 | 14.00 | S | IU | NC40 | 101.60 | 8.38 | 106.4 | 133.4 | 68.3 | 177.80 | 254.00 | 127.40 | 22.76 |
4 | 14.00 | G | IU | NC40 | 101.60 | 8.38 | 106.4 | 139.7 | 61.9 | 177.80 | 254.00 | 127.40 | 23.61 |
4 | 14.00 | D | IU | NC40 | 101.60 | 8.38 | 106.4 | 139.7 | 50.8 | 177.80 | 254.00 | 127.40 | 24.03 |
4-1/2 | 13.75 | E | IU | NC46 | 114.30 | 6.88 | 119.1 | 152.4 | 85.7 | 177.80 | 254.00 | 145.26 | 22.50 |
2-3/8 | 6.65 | E | EU | NC26 | 60.32 | 7.11 | 65.1 | 85.7 | 44.5 | 177.80 | 203.20 | 82.90 | 10.45 |
2-3/8 | 6.65 | X,G | EU | NC26 | 60.32 | 7.11 | 65.1 | 85.7 | 44.5 | 177.80 | 203.20 | 82.90 | 10.58 |
2-7/2 | 10.40 | E | EU | NC31 | 73.02 | 9.19 | 81.0 | 104.8 | 54.0 | 177.80 | 228.60 | 100.41 | 16.25 |
2-7/8 | 10.40 | X,G | EU | NC31 | 73.02 | 9.19 | 81.0 | 104.8 | 50.8 | 177.80 | 228.60 | 100.41 | 16.50 |
2-7/8 | 10.40 | S | EU | NC31 | 73.02 | 9.19 | 81.0 | 111.1 | 41.3 | 177.80 | 228.60 | 100.41 | 17.19 |
3-1/2 | 9.50 | E | EU | NC38 | 88.90 | 6.45 | 98.4 | 120.7 | 68.3 | 203.20 | 266.70 | 116.28 | 15.77 |
3-1/2 | 13.30 | E | EU | NC38 | 88.90 | 9.35 | 98.4 | 120.7 | 68.3 | 203.20 | 266.70 | 116.28 | 20.77 |
3-1/2 | 13.30 | X | EU | NC38 | 88.90 | 9.35 | 98.4 | 127.0 | 65.1 | 203.20 | 266.70 | 116.28 | 21.76 |
3-1/2 | 13.30 | G | EU | NC38 | 88.90 | 9.35 | 98.4 | 127.0 | 61.9 | 203.20 | 266.70 | 116.28 | 21.90 |
3-1/2 | 13.30 | S | EU | NC38 | 88.90 | 9.35 | 98.4 | 127.0 | 54.0 | 203.20 | 266.70 | 116.28 | 22.22 |
3-1/2 | 13.50 | E | EU | NC38 | 88.90 | 11.40 | 98.4 | 127.0 | 65.1 | 203.20 | 266.70 | 116.28 | 24.67 |
3-1/2 | 13.50 | X | EU | NC38 | 88.90 | 11.40 | 98.4 | 127.0 | 61.9 | 203.20 | 266.70 | 116.28 | 25.07 |
3-1/2 | 13.50 | G | EU | NC38 | 88.90 | 11.40 | 98.4 | 127.0 | 54.0 | 203.20 | 266.70 | 116.28 | 25.38 |
3-1/2 | 13.50 | S | EU | NC40 | 88.90 | 11.40 | 98.4 | 139.7 | 57.2 | 203.20 | 266.70 | 127.40 | 26.19 |
EU | |||||||||||||
4 | 14.00 | E | EU | NC46 | 101.60 | 8.38 | 114.3 | 152.4 | 82.6 | 177.80 | 254.00 | 145.26 | 23.67 |
4 | 14.00 | X,G | EU | NC46 | 101.60 | 8.38 | 114.3 | 152.4 | 82.6 | 177.80 | 254.00 | 145.26 | 24.12 |
4 | 14.00 | S | EU | NC46 | 101.60 | 8.38 | 114.3 | 152.4 | 76.2 | 177.80 | 254.00 | 145.26 | 24.46 |
4-1/2 | 13.75 | E | EU | NC50 | 114.30 | 6.88 | 127.0 | 168.3 | 95.3 | 177.80 | 254.00 | 153.99 | 23.65 |
4-1/2 | 16.60 | E | EU | NC50 | 114.30 | 8.56 | 127.0 | 168.3 | 95.3 | 177.80 | 254.00 | 153.99 | 27.51 |
4-1/2 | 16.60 | X,G | EU | NC50 | 114.30 | 8.56 | 127.0 | 168.3 | 95.3 | 177.80 | 254.00 | 153.99 | 28.07 |
4-1/2 | 16.60 | S | EU | NC50 | 114.30 | 8.56 | 127.0 | 168.3 | 88.9 | 177.80 | 254.00 | 153.99 | 28.47 |
4-1/2 | 20.00 | E | EU | NC50 | 114.30 | 10.92 | 127.0 | 168.3 | 92.1 | 177.80 | 254.00 | 153.99 | 32.93 |
4-1/2 | 20.00 | X,G | EU | NC50 | 114.30 | 10.92 | 127.0 | 168.3 | 88.9 | 177.80 | 254.00 | 153.99 | 33.63 |
4-1/2 | 20.00 | S | EU | NC50 | 114.30 | 10.92 | 127.0 | 168.3 | 76.2 | 177.80 | 254.00 | 153.99 | 34.34 |
4-1/2 | 16.60 | E | IEU | NC46 | 114.30 | 8.56 | 119.1 | 168.3 | 82.6 | 177.80 | 254.00 | 145.26 | 27.36 |
4-1/2 | 16.60 | X,G | IEU | NC46 | 114.30 | 8.56 | 119.1 | 158.8 | 76.2 | 177.80 | 254.00 | 145.26 | 27.73 |
4-1/2 | 16.60 | S | IEU | NC46 | 114.30 | 8.56 | 119.1 | 158.8 | 69.9 | 177.80 | 254.00 | 145.26 | 28.04 |
4-1/2 | 20.00 | E | IEU | NC46 | 114.30 | 10.92 | 119.1 | 158.8 | 76.2 | 177.80 | 254.00 | 145.26 | 32.94 |
4-1/2 | 20.00 | X | IEU | NC46 | 114.30 | 10.92 | 119.1 | 158.8 | 69.9 | 177.80 | 254.00 | 145.26 | 33.69 |
4-1/2 | 20.00 | G | IEU | NC46 | 114.30 | 10.92 | 119.1 | 158.8 | 63.5 | 177.80 | 254.00 | 145.26 | 33.97 |
4-1/2 | 20.00 | S | IEU | NC46 | 114.30 | 10.92 | 119.1 | 158.8 | 57.2 | 177.80 | 254.00 | 145.26 | 34.23 |
IEU | |||||||||||||
5 | 19.50 | E | IEU | NC50 | 127.00 | 9.19 | 130.2 | 168.3 | 95.3 | 177.80 | 254.00 | 153.99 | 31.79 |
5 | 19.50 | X | IEU | NC50 | 127.00 | 9.19 | 130.2 | 168.3 | 88.9 | 177.80 | 254.00 | 153.99 | 32.58 |
5 | 19.50 | G | IEU | NC50 | 127.00 | 9.19 | 130.2 | 168.3 | 82.6 | 177.80 | 254.00 | 153.99 | 32.95 |
5 | 19.50 | S | IEU | NC50 | 127.00 | 9.19 | 130.2 | 168.3 | 69.9 | 177.80 | 254.00 | 153.99 | 33.60 |
5 | 19.50 | E | IEU | 5(1/2)FH | 127.00 | 9.19 | 130.2 | 177.8 | 95.3 | 203.20 | 254.00 | 170.66 | 33.22 |
5 | 19.50 | X,G | IEU | 5(1/2)FH | 127.00 | 9.19 | 130.2 | 177.8 | 95.3 | 203.20 | 254.00 | 170.66 | 33.61 |
5 | 19.50 | S | IEU | 5(1/2)FH | 127.00 | 9.19 | 130.2 | 184.2 | 88.9 | 203.20 | 254.00 | 170.66 | 34.89 |
5 | 25.60 | E | IEU | NC50 | 127.00 | 12.70 | 130.2 | 168.3 | 88.9 | 177.80 | 254.00 | 153.99 | 40.73 |
5 | 25.60 | X | IEU | NC50 | 127.00 | 12.70 | 130.2 | 138.6 | 76.2 | 177.80 | 254.00 | 153.99 | 41.80 |
5 | 25.60 | G | IEU | NC50 | 127.00 | 12.70 | 130.2 | 168.3 | 69.9 | 177.80 | 254.00 | 153.99 | 42.11 |
5 | 25.60 | E | IEU | 5(1/2)FH | 127.00 | 12.70 | 130.2 | 177.8 | 88.9 | 203.20 | 254.00 | 170.66 | 42.14 |
5 | 25.60 | X | IEU | 5(1/2)FH | 127.00 | 12.70 | 130.2 | 177.8 | 88.9 | 203.20 | 254.00 | 170.66 | 42.51 |
5 | 25.60 | G | IEU | 5(1/2)FH | 127.00 | 12.70 | 130.2 | 184.2 | 88.9 | 203.20 | 254.00 | 170.66 | 43.35 |
5 | 25.60 | S | IEU | 5(1/2)FH | 127.00 | 12.70 | 130.2 | 184.2 | 82.6 | 203.20 | 254.00 | 170.66 | 43.75 |
Tensile performance parameters
Grade | Yield strength | Tensile strength | |||||
min | max | min | |||||
Psi | Mpa | Psi | Mpa | Psi | Mpa | ||
1 | E-75 | 75.000 | 517 | 105.000 | 724 | 100000 | 689 |
2 | X-95 | 95.000 | 655 | 125.000 | 862 | 105000 | 724 |
G-105 | 105.000 | 724 | 135.000 | 931 | 115000 | 793 | |
S-135 | 135.000 | 931 | 165.000 | 1138 | 145000 | 1000 |
ROSCHEN GROUP
ROSCHEN GROUP
ROSCHEN Group has the world class advanced equipment like 12000 tons forging, metal processing plant, heat treatment workshop, numerical control plant, Advanced five-axis machining center, etc. professional technical and skilled team to ensure mining, mineral tools, equipment products quality stable and reliable.
ROSCHEN Group Limited is a manufactory with years of research and development for the mining, mineral tools, equipment. We are capability to produce high performance world class products and control excellent quality. Our main product includes tricone bit, diamond core bits, drill pipe, core barrel, TCI tricone bit, mill tooth tricone bit, RC hammer, DTH bit, etc.
ROSCHEN Manufactory PROCESS
ROSCHEN Sales Value Growing Up!
ROSCHEN'S MISSION
1. Strive to create and supply Best quality products for the industry that last longer than the average products.
2. Provide excellent service for our clients. 24 hour-7 days /week schedule to get our clients what they need – FAST.