API Nonmagnetic drill collars
group nameDrilling Tools
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Min Order10 piece
modelNonmagnetic drill collars
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update timeMon, 08 Apr 2013 00:05:26 GMT
Paramtents
API Nonmagnetic drill collars Nonmagnetic drill collars
CNC or Not Normal
Condition New
Packging & Delivery
Min Order10 piece
Briefing
1.Nonmagnetic drill collars
2.API certificate
3.full size
4. competive price with high quality
2.API certificate
3.full size
4. competive price with high quality
Detailed
1.Nonmagnetic drill collars
2.API certificate
3.full size
4. competive price with high quality
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 |
