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- Mining and Metallurgy Projects[1]
- Chemical Auxiliary Agent[4]
- Air-Compressors[1]
- Separation Equipment[1]
- Cleaning Equipment[1]
- Other Construction Machinery[1]
- Filter Meshes[1]
- Gas Generation Equipment[1]
- Drilling Machine[2]
- Drilling Rig[5]
- Other Mining Machinery[1]
- Mining Machinery Parts[10]
- Pipe Fittings[6]
- Pumps[4]
- Valves[3]
- Cast & Forged[1]
- Steel Pipes[10]
- Steel Wire Mesh[1]
Contact Us
- Contact Person : Ms. Kuo Herish
- Company Name : Sinotai Petroleum Equipment Co., Ltd.
- Tel : 86-546-8300512
- Fax : 86-546-8308512
- Address : Shandong,Dongying,No.69 Dengzhou Road
- Country/Region : China
- Zip : 257091
API Nonmagnetic drill collars
Product Detailed
Related Categories:Drilling Machine
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1.Nonmagnetic drill collars
2.API certificate
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4. competive price with high quality
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Non-magnetic drill collars are made from stainless alloy steel by combining
a proprietary chemical analysis and a hammer forging process.
The material is resistant to stress corrosion cracking,with high mechanical properties,
low magnetic permeability, excellent machine ability and no tendency to galling.
OD | σ0.2 Yield strength Mpa | σb Tensile strength Mpa | σ4(%) elongation | |
mm | in | |||
79.4~171.4 | 3 1/8~6 3/4 | >758 | >827 | >18 |
177.8~279.4 | 7~11 | >689 | >758 | >20 |
API Nonmagnetic drill collars
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