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Henan Jianhui Construction Machinery Co.

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 Henan Jianhui Construction Machinery Co.

China

Main Product:steel products

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Non-magnetic Drill Collar
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Product：
Price： Negotiable 
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Total supply：
Delivery time： From the date of payment from the buyer within 3days of delivery
update time： 2016-07-08 05:36  Valid to：Long-term effective
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Product Information

Name: Non-magnetic Drill Collar

Material: N1310

Standard: API 7
Product Detail

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

Serial number

OD

ID

L mm

DF mm

BST

mm

in

mm

in

NC23-31

79.4

3 1/8

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

2 1/4

9150/9450

144.5

2.49:1

NC44-62

158.8

6 1/4

57.2

2 1/4

9150/9450

149.2

2.91:1

NC46-65

165.1

6 1/2

71.4

2 13/16

9150/9450

154.8

3.05:1

NC46-67

171.4

6 3/4

57.2

2 1/4

9150/9450

159.5

3.18:1

NC50-70

177.8

7

57.2

2 1/4

9150/9450

164.7

2.54:1

NC50-72

184.2

7 1/4

71.4

2 13/16

9150/9450

169.5

3.12:1

NC56-77

196.8

7 3/4

71.4

2 13/16

9150/9450

185.3

2.70:1

NC56-80

203.2

8

71.4

2 13/16

9150/9450

190.1

3.02:1

NC61-90

228.6

9

71.4

2 13/16

9150/9450

212.7

3.17:1

7 5/8REG

241.3

9 1/2

76.2

3

9150/9450

223.8

2.81:1

NC70-97

247.6

9 3/4

76.2

3

9150/9450

232.6

2.57:1

NC70-100

254.0

10

76.2

3

9150/9450

237.3

281:1

8 5/8REG

279.4

11

76.2

3

9150/9450

266.7

2.84:1

 
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