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Help CenterLifting Subs for Oil Drilling Stabilizer Equipment , 40CrMnMo Drill Stabilizers
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Certification:ISO
4145H, 4145Mod, 40CrMnMo Lifting Subs for Oil Drilling Stabilizer Equipment
Specifications:
1. Material: 4145H, 4145Mod, 40CrMnMo, etc.
2. UT: ASTM A388
Standard size for lifting subs
|
No |
Basic size D±0.08 (1/32) mm(in) |
I.D. d/mm |
Pin connection |
Lifting end |
|||||
|
Thread Type |
O.D. D±0.08(1/32) mm(in) |
Bevel Diameter DF/mm |
Tongs Space Length LPB/mm |
O.D. DB±0.08 mm |
Elevator bevel root radius RSE±0.04mm |
Tongs Space Length LB/mm |
|||
|
1 |
73.0 (2 7/8) |
31.8 |
NC23 |
79.4 (3 1/8) |
76.2 |
250.0 |
111.1 |
4.8 |
100.0 |
|
2 |
44.5 |
NC26 (2 3/8) ※ |
88.9 (3 1/2) |
82.9 |
|||||
|
3 |
88.9 (3 1/2) |
54.0 |
NC31 (2 7/8) ※ |
104.8 (4 1/8) |
100.4 |
127.0 |
|||
|
4 |
50.8 |
NC35 |
120.7 (4 3/4) |
114.7 |
|||||
|
5 |
68.3 |
NC3 (3 1/2IF) ※ |
127.0 (5) |
121.0 |
|||||
|
6 |
127.0(5) |
71.4 |
NC44 |
152.4 (6) |
144.5 |
168.3 |
6.4 |
||
|
7 |
158.8 (6 1/4) |
149.2 |
|||||||
|
8 |
82.6 95.3 |
NC46 (4IF) |
158.8 (6 1/4) |
150.0 |
|||||
|
9 |
165.1 (6 1/2) |
154.8 |
|||||||
|
10 |
171.5 (6 3/4) |
159.5 |
|||||||
|
11 |
NC50 (4 1/2IF) ※ |
177.8 (7) |
164.7 |
||||||
|
12 |
184.2 (7 1/4) |
169.5 |
|||||||
|
13 |
NC56 |
196.8 (7 3/4) |
185.3 |
300.0 |
|||||
|
14 |
203.2 (8) |
190.1 |
|||||||
|
15 |
6 5/8REG※ |
209.6 (8 1/4) |
195.7 |
||||||
|
16 |
NC61 |
228.6 (9) |
212.7 |
||||||
|
17 |
7 5/8 REG※ |
241.3 (9 1/2) |
223.8 |
||||||
|
18 |
NC70 |
247.7 (9 3/4) |
232.6 |
||||||
|
19 |
254.0 (10) |
237.3 |
|||||||
|
20 |
NC77 |
279.4 (11) |
260.7 |
Lifting subs is a special tool for lifting of the drill tools in petroleum, natural gas industry and geologic exploration.
Have better mechanical properties, grain size and metallurgical structure higher than API Spec 7-1 standard, according to a special heat treatment process the product’s hardness, strength, impact performance can be ensured. Wear layers mosaic cylindrical carbide has high-strength and durable resistance poin
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