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Specifications
Type: sucker rod couplingMaterial: carbon steel, stainless steel
Connection: Male, female
Head: thread
Specifications
API 5CT Oilwell sucker rod coupling
1.Size: from 3/4" to 1" slim hole full size
2.Placement: female
3.Technics: hot rolling
4.Grade: T,SM
Detailed product description
Couplings produced by our factory include sucker rod coupling, sub-coupling, API 5CT tubing and casing coupling. Sucker rod coupling and sub-coupling are designed in accordance with API Spec 11B, the material is high quality alloy steel. Normally, there are 2 wrench flats on the outside diameter. Class T coupling hardness is HRA56-62 after heat treatment, possesing better anti-corrosion property and abrasion-proof property.
Sucker rod coupling is used for connecting the same size of sucker rods. Sub-coupling is used for connecting the two sizes of sucker rods or polished rod to a sucker rod string.
Technical Parameters
API 5CT Oilwell sucker rod coupling
Size (in) |
3/4 |
7/8 |
1 |
Coupling O.D (+0.13,-0.25) (mm) |
41.3 |
46.0 |
55.6 |
Threaded D.(in) |
11/16 |
13/16 |
13/8 |
Lengh of wrench square (mm) |
31.8 |
31.8 |
38.1 |
Lengh (+1.57,0.00) (mm) |
101.6 |
||
Hardness(HRA) |
56-62 |
||
Machanical Properties
API 5CT Oilwell sucker rod coupling
Tensile Strength Rm(N/mm2) |
≥655 |
Yield Strengh Rel(N/mm2) |
≥405 |
Percentage Elongation A(%) |
≥24 |
Contraction Percentage of Area Z(%) |
≥48 |
API 5CT Oilwell sucker rod coupling
API 5CT Oilwell sucker rod coupling
:
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