Non-magnetic drill collar
Category:
- Product Description
- Device Parameters
-
- Commodity name: Non-magnetic drill collar
- Commodity ID: 1123540439244886016
Non-magnetic drill collar
Chemical composition
Grade
Chemical composition and its content %
C
Yes
Cr
Mn
Ni
Mo
N
W-1
≤0. 08
≤ 0.8
13.5 ~
16.5
16.0
~
18.5
1.0 ~ 3.0
0.40
~
0.85
0.25
~
0.40
W-2
≤ 0.03
≤ 0.8
13 ~
16
18.5
~
22.0
1.0 ~ 3.0
0.4 ~ 0.80
0.30
~
0.45
W-3
≤ 0.03
≤ 0.8
16.5 ~ 18.5
18.5
~
22.0
1.0 ~ 3.0
0.4 ~ 0.80
0.50
~
0.80
Mechanical properties
Grade
Outer diameter range
Yield strength
Tensile strength
Elongation A
%
Charpy impact energy
Hardness ( HB )
millimeter
MPa
ksi
MPa
ksi
21°C
-25℃
W-1
79.4 -174.6
≥758
≥110
≥ 827
≥ 120
≥20
≥ 85
≥ 40
285-400
177.8-279.4
≥689
≥100
≥ 758
≥ 110
W-2
79.4 -174.6
≥827
≥120
≥896
≥130
≥25
≥ 150
≥ 40
285-365
177.8-279.4
≥758
≥110
W-3
79.4 -174.6
≥965
≥140
≥1034
≥150
≥20
≥ 100
≥ 40
300-400
177.8-279.4
≥896
≥130
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