Description:Name: Non-magnetic Drill Collar
Material: N1310
Standard: API 7
Port:Tianjin/Qingdao
Payment Terms:L/C
Supply Time:Week
Packaging Details:As your request
Product detail:
| Product Information |
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Name: Non-magnetic Drill Collar
Material: N1310
Standard: API 7
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| Product Detail |
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It's made from N1310 low carbon alloy-steel and forged by strict chemical analysis. By testing its mechanical properties, we can ensure the material's hardness, toughness, impact value and corrosion resistance conform to the standard. It has favorable low-permeability and machining properties. Magnetic permeability (MPS=1×105/4πNm)
Max:1. 010
Average Value:μr≤1. 005
Field Gradient (hot spots)
max: B≤0. 05
We have some non-magnetic drill collars with specifications of 165, 159, 121 and 105, as well as some non-magnetic short drill collar with specification of 5. 5m, 4. 5m And 3m
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Serial number
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OD
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ID
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L mm
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DF mm
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BST
|
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mm
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in
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mm
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in
|
|
NC23-31
|
79.4
|
3 1/8
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31.8
|
1 1/4
|
9150
|
76.2
|
2.57：1
|
|
NC26-35
|
88.9
|
3 1/2
|
38.1
|
1 1/2
|
9150
|
82.9
|
2.42：1
|
|
NC31-41
|
104.8
|
4 1/8
|
50.8
|
2
|
9150/9450
|
100.4
|
2.43：1
|
|
NC35-47
|
120.7
|
4 3/4
|
50.8
|
2
|
9150/9450
|
114.7
|
2.58：1
|
|
NC38-50
|
127.0
|
5
|
57.2
|
2 1/4
|
9150/9450
|
121．0
|
2.38：1
|
|
NC44-60
|
152.4
|
6
|
57.2
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2 1/4
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9150/9450
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144.5
|
2.49:1
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|
NC44-62
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158.8
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6 1/4
|
57.2
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2 1/4
|
9150/9450
|
149.2
|
2.91:1
|
|
NC46-65
|
165.1
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6 1/2
|
71.4
|
2 13/16
|
9150/9450
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154.8
|
3.05:1
|
|
NC46-67
|
171.4
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6 3/4
|
57.2
|
2 1/4
|
9150/9450
|
159.5
|
3.18:1
|
|
NC50-70
|
177.8
|
7
|
57.2
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2 1/4
|
9150/9450
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164.7
|
2.54:1
|
|
NC50-72
|
184.2
|
7 1/4
|
71.4
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2 13/16
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9150/9450
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169.5
|
3.12:1
|
|
NC56-77
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196.8
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7 3/4
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71.4
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2 13/16
|
9150/9450
|
185.3
|
2.70:1
|
|
NC56-80
|
203.2
|
8
|
71.4
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2 13/16
|
9150/9450
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190.1
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3.02:1
|
|
NC61-90
|
228.6
|
9
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71.4
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2 13/16
|
9150/9450
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212.7
|
3.17:1
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|
7 5/8REG
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241.3
|
9 1/2
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76.2
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3
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9150/9450
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223.8
|
2.81:1
|
|
NC70-97
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247.6
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9 3/4
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76.2
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3
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9150/9450
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232.6
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2.57:1
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NC70-100
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254.0
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10
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76.2
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3
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9150/9450
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237.3
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281:1
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8 5/8REG
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279.4
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11
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76.2
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3
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9150/9450
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266.7
|
2.84:1
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