API 5dp Geological Drilling seamless steel Tube and Pipe
USD $600 - $800 /Ton
Min.Order:20 Tons
Beijing Hengzhixinda Trade Co., Ltd.
Geological Drilling Pipes
Standard:
Q/OHAD006-2004 HengYang Composition
YB/T5052 Standard of China Metallurgical Industry
Application
For geological drilling
Grade and Chemical Composition(%):
Grade | Designation | Chemical Composition | ||||||||||
C | Si | Mn | P | S | Cu | Ni | Cr | Mo | V | B | ||
Max | ||||||||||||
DZ40 | 37Mn5 | 0.33~0.39 | 0.15~0.35 | 1.20~1.45 | 0.025 | 0.020 | 0.20 | 0.20 | ≤0.15 | ≤0.10 |
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50Mn | 0.48~0.56 | 0.17~0.37 | 0.70~1.00 | 0.035 | 0.035 | 0.25 | 0.30 | ≤0.25 |
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DZ50 DZ55 | 45Mn2 | 0.42~0.49 | 0.17~0.37 | 1.40~1.80 | 0.035 | 0.035 | 0.25 | 0.30 | ≤0.30 | ≤0.15 |
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36Mn2V | 0.35~0.40 | 0.20~0.40 | 1.40~1.65 | 0.025 | 0.015 | 0.20 | 0.20 | ≤0.15 | ≤0.10 | 0.10~0.16 |
| |
42MnMo7 | 0.40~0.46 | 0.15~0.35 | 1.60~1.85 | 0.025 | 0.015 | 0.20 | 0.20 | ≤0.15 | 0.15~0.25 |
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STM— R780 | 36Mn2V | 0.35~0.40 | 0.20~0.40 | 1.40~1.65 | 0.025 | 0.015 | 0.20 | 0.20 | ≤0.15 | ≤0.10 | 0.10~0.16 |
|
42MnMo7 | 0.40~0.46 | 0.15~0.35 | 1.60~1.85 | 0.025 | 0.015 | 0.20 | 0.20 | ≤0.15 | 0.15~0.25 |
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| |
DZ60 | 45MnMoB | 0.41~0.49 | 0.17~0.37 | 0.90~1.20 | 0.030 | 0.030 | 0.25 | 0.25 | ≤0.25 | 0.20~0.30 | ≤0.08 | 0.001~0.005 |
25CrMnMo | 0.23~0.28 | 0.17~0.37 | 0.90~1.10 | 0.020 | 0.010 | 0.20 | 0.20 | 0.60~0.80 | 0.15~0.25 |
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Note: pipes of other grades can also be provided as per agreement
Dimension Tolerances:
Allowed OD and Wall Thickness tolerances for pipes delivered as per Q/OHAD006-2004 .
OD | Allowed Tolerance | Wall Thickness | Allowed Tolerance |
<50mm | ±0.40mm | ≤5mm | +12%S -10%S |
50~100mm | ±1%D | >5mm | ±10%S |
>100mm | ±1.00mm |
Allowed ID and Wall Thickness tolerances for pipes delivered as per Q/OHAD006-2004 .
Allowed ID tolerance | Allowed Thickness tolerance |
+1.2%d -0.8%d | ±10%S |