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Drill Collar
Source: LONGER | [ 2013-09-12 ] Hits: 3351

 

Standard :
API SPEC 7-1 
 
Material :
AISI 4145 H Alloy Steel or Non-magnetic material.
 
Types:
Slick drill collars / Spiral drill collars / Non-mag material drill collars
 
Size :
OD : 3 1/8"---11", Length : 10'---31'
 
 
 
Mechanical Property

OD Range
Yield Strength(MPa)
Tensile Strength(MPa)
Elongation
(%)
Hardness
(HB)
Impact Test(J)
mm
in
79.4171.4
31/863/4
≥758
≥965
≥13
285341
≥54
177.8279.4
711
≥689
≥930
≥13
285341
≥54


Mechanical Property of Non-mag Drill Collars

OD Range
Yield Strength(MPa)
Tensile Strength(MPa)
Elongation (%)
Hardness
(HB)
Impact Test(J)
mm
in
79.4171.4
31/863/4
≥758
≥827
≥18
 /
 /
177.8279.4
711
≥689
≥758
≥20
 /
 /

 
Note: When ordering or requesting for quote, please specify the detailed requirements.