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Class T Full Size and Slim hole Coupling
Our company produces coupling including sucker rod coupling, sub-coupling and spray metal coupling, they are design according to API Spec 11 B standard. These API Class T couplings are made of 4135 alloy steel and offer excellent resistance to hydrogen embrittlement. They are furnished with all Weatherford sucker rods unless otherwise specified.
Product Description
Introduction
The sucker rod couplings are used for connecting sucker rods, polished rods and sinker bars.
-The main types of sucker rod couplings are sucker rod couplings, polished rod couplings and sub-couplings.
- All of the three types have two classes: class T(through-hardened)and class SM (sprayed metal).
-Material: carbon steel, alloy steel.
-Specification:5/8", 3/4", 7/8"1", 1 1/8"
API 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 Grade T Sucker Rod Coupling
These API Class T couplings are made of 4135 alloy steel and offer excellent resistance to hydrogen embrittlement. They are furnished with all Weatherford sucker rods unless otherwise specified.
Grade SM Sucker Rod Coupling
These SM Sucker Rod Couplings are made of 4135 alloy steel and offer excellent resistance to hydrogen embrittlement. This provides a strong metallurgical bond between base metal and the spray metal coating
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 |
Production
For common sucker rod
Raw Material Test → Cold Straighten → Cut → Forge → Hot Treatment → Hot Alignment → Shot Blasting → Rod Head Machining → Assembly → Protective Cap → Package → Aczoiling Treatment.
For extra high tensile sucker rod
Raw Material Test → Cold Straighten → Cut → Forge → Quenched And Tempered → Hot Treatment → Hot Alignment → Shot Blasting → Rod Head Machining → Surface Quenched → Assembly → Protective Cap → Package → Aczoiling Treatment.
Shot blasting
Packing
For More Information Talk to Our Product Service Experts
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+86 393 4805 739
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Zhongyuan Oilfield, Puyang City, Henan Province, China
Puyang Zhongshi Group Co., Ltd. we have competitive prices of our main products of casing tools like casing centralizer, floating equipment, cementing plug, cementing
