Product Details

API Drill Collar AISI 4145H
Standard
Grade
Thickness 0.28, 0.60
Section Shape Round
Outer Diameter 79.4 - 279.4 mm
Place of Origin Shandong, China
Secondary Or Not Non-secondary
Application Oil Pipe
Technique Hot Rolled
Certification API
Surface Treatment Other
Special Pipe API Pipe
Alloy Or Not Is Alloy

Product Features

Specifications

1. Drill Collar
2.AISI 4145H modified steel
3.OD size; 3 1/8"-11"

Drill Collar

1.Drill collars are manufactured from AISI 4145H modified steel

2. Drill Collars are supplied in the "as rolled" surface finish condition.

3.Alternative surface finishes are available.

 

Size of drill collar

Model of connection

DD

ID

Length

mm

DF

mm

Bending Strength Ratio

mm

in

mm

in

NC23-31

79.4

3 1/8

31.8

1 1/4

9150

76.2

2.57:1

NC26-35(2 3/8IF)

88.9

3 1/2

38.1

1 1/2

9150

82.9

2.42:1

NC31-41(2 7/8IF)

104.8

4 1/8

50.8

2

9150

100.4

2.43:1

NC35-47

120.7

4 3/4

50.8

2

9150

114.7

2.58:1

NC3850(3 1/2IF)

127.0

5

57.2

2 1/4

9150

121.0

2.38:1

NC44-60

152.4

6

57.2

2 1/4

9150 or 9450

144.5

2.49:1

NC44-62

158.8

6 1/4

57.2

2 1/4

9150 or 9450

149.2

2.91:1

NC46-62(4IF)

158.8

6 1/4

71.4

2 13/16

9150 or 9450

150.0

2.63:1

NC46-65(4IF)

165.1

6 1/2

57.2

2 1/4

9150 or 9450

154.8

2.76:1

NC46-65(4IF)

165.1

6 1/2

71.4

2 13/16

9150 or 9450

154.8

3.05:1

NC46-67(4IF)

171.4

6 3/4

57.2

2 1/4

9150 or 9450

159.5

3.18:1

NC50-67(4 1/2IF)

171.4

6 3/4

71.4

2 13/16

9150 or 9450

159.5

2.37:1

NC50-70(4 1/2IF)

177.8

7

57.2

2 1/4

9150 or 9450

164.7

2.54:1

NC50-70(4 1/2IF)

177.8

7

71.4

2 13/16

9150 or 9450

164.7

2.73:1

NC50-72(4 1/2IF)

184.2

7 1/4

71.4

2 13/16

9150 or 9450

169.5

3.12:1

NC50-77

196.8

7 3/4

71.4

2 13/16

9150 or 9450

185.3

2.70:1

NC50-80

203.2

8

71.4

2 13/16

9150 or 9450

190.1

3.02:1

6 5/8REG

209.6

8 1/4

71.4

2 13/16

9150 or 9450

195.7

2.93:1

NC61-90

228.6

9

71.4

2 13/16

9150 or 9450

212.7

3.17:1

7 5/8REG

241.3

9 1/2

76.2

3

9150 or 9450

223.8

2.81:1

NC70-97

247.6

9 3/4

76.2

3

9150 or 9450

232.6

2.57:1

NC70-100

254.0

10

76.2

3

9150 or 9450

237.3

2.81:1

8 5/8REG

279.4

11

76.2

3

9150 or 9450

266.7

2.84:1

 

 API Drill Collar AISI 4145H

 

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