Class SM Sucker Rod Coupling
USD $0.8 - $80 /Piece
Min.Order:1000 Pieces
Puyang Zhongshi Group Co., Ltd.
full size Coupling
Size(in) | Coupling O.D W(mm) (+0.13,-0.25) | Length L(mm) (+1.57,-0.00) | Thread D.(in) | Length of Wrench Square (mm) | Hardness(HRA) |
5/8" | 38.10 | 101.6 | 15/16" | 31.8 | 56-62 |
3/4" | 41.28 | 1-1/16" | |||
7/8" | 46.00 | 1-3/16" | |||
1" | 55.60 | 1-3/8" | 38.1 | ||
1-1/8" | 60.33 | 114.3 | 1-9/16" |
Slim Hole Coupling
Size(in) | Coupling O.D W(mm) (+0.13,-0.25) | Length L(mm) (+1.57,-0.00) | Thread D.(in) | Length of Wrench Square (mm) | Hardness(HRA) |
5/8" | 31.75 | 101.6 | 15/16" | 31.8 | 56-62 |
3/4" | 38.10 | 1-1/16" | |||
7/8" | 41.30 | 1-3/16" | |||
1" | 50.80 | 1-3/8" | 38.1 |
Full Size Sub-coupling
Size(in) | Coupling O.D W(mm) (+0.13,-0.25) | Length L(mm) (+1.57,-0.00) | Small End Thread D. | Big End Thread D. | Hardness(HRA) |
5/8"-3/4" | 41.28 | 101.6 | 15/16" | 1-1/16" | 56-62 |
3/4"-7/8" | 46.00 | 1-1/16" | 1-3/16" | ||
7/8"-1" | 55.60 | 114.3 | 1-3/16" | 1-3/8" | |
1"-1-1/8" | 60.33 | 127.0 | 1-3/8" | 1-9/16" |
Slim Hole Sub-coupling
Size(in) | Coupling O.D W(mm) (+0.13,-0.25) | Length L(mm) (+1.57,-0.00) | Small End Thread D. | Big End Thread D. | Hardness(HRA) |
5/8"-3/4" | 38.10 | 101.6 | 15/16" | 1-1/16" | 56-62 |
3/4"-7/8" | 41.30 | 1-1/16" | 1-3/16" | ||
7/8"-1" | 50.80 | 114.3 | 1-3/16" | 1-3/8" |
Full Size Polished Connection
Size(in) | Coupling O.D W(mm) (+0.13,-0.25) | Length L(mm) (+1.57,-0.00) | Thread D.(in) | Vanish Cone | Hardness(HRA) |
5/8" | 38.10 | 101.6 | 15/16" | 9O | 56-62 |
3/4" | 41.28 | 1-1/16" | |||
7/8" | 46.00 | 1-3/16" | |||
1" | 55.60 | 1-3/8" | |||
1-1/8" | 60.33 | 114.3 | 1-9/16" |
Slim Hole Polished Connection
Size(in) | Coupling O.D W(mm) (+0.13,-0.25) | Length L(mm) (+1.57,-0.00) | Thread D.(in) | Vanish Cone | Hardness(HRA) |
5/8" | 31.75 | 101.6 | 15/16" | 9O | 56-62 |
3/4" | 38.10 | 1-1/16" | |||
7/8" | 41.30 | 1-3/16" | |||
1" | 50.80 | 1-3/8" |
Coupling Mechanical Properties
Tensile Strength Rm(Mpa) | Yield Strength Rel(Mpa) | Elongation Percentage A(%) | Reduction Percentage of Area Z(%) |
≥655 | ≥405 | ≥16 | ≥48 |
1) Coupling Material: 40Cr 45# 35CrMo
2)Smoothness: 3.1*10-3
3)Coat Thickness(in): 0.01in ~ 0.02in
4)Basic hardness: HRC 16-23
5)Surface Hardness: HRC 55-62
6)Bonding Strength(Mpa): 484
7)Hole rate: <2%
8)Min. Hardness of the layer: 595HV0.2
9)Min. Tensile Strength: 655 Mpa
10)Operating Temperature: -1000~400 Centigrade Temperature
11)Life: > 180 days
12) Package: wooden case, 1000pcs each case.
13) Usage: oil exploration equipment, accessories, oil sucker rod coupling
Restructured from SINOPEC in 1997, Puyang Zhongshi Group Co., Ltd has 18 years manufacturing experience of petroleum machinery products till now, we have competitive prices of our main products of casing accessories likebow spring centralizer, solid rigid centralizer,float equipment, cementing plug etc.
We have 9 factories, more than 500 employees, and many kinds of production equipments.
We have certificates of API 5CT,6A,10D,11AX,11E, ISO 14001 and 9001.
With 10 years exporting experience,we have exported to more than 30 countries such as America,Canada,Russia,Venezuela,Columbia,Thailand,Indonesia ,UAE,Saudi Arabia,Kazakhstan etc.