Sucker Rod Coupling Class T
Sucker Rod CouplingClass T
Our company producedClass T Coupling,subcouplingand spray coupling, they are design according to API Spec 11 Bstandard.Usingthe high quality carbon steel or alloy steel (the equivalent of AISI 1045 and AISI 4135) and plating metal is a kind of surface hardening technology, is the nickel,chromium,boron and silicon powder coated on the substrate metal and fused with the laser processing, after the process,the metal surface makes harder,density higher and more uniform, the friction coefficient is very low and the corrosion resistance is very high.Slim hole (SH) diameter and standard size (FS) of conventional sucker rodand polished rod have plating metal (SM) .Under normal circumstances, there is two wrenchon the coupling and the outside circle, but according to user we can also provide no wrench square.Hardness of couplingT is HRA56-62after heat treatment, with good corrosion resistance and wear resistance, when using sucker rod coupling,is connectingwiththe same sizerod, sub-coupling is used for connectingto differencesize of the sucker rod or connect the polished rod and rod string .Coupling type: Class T (full sizeandslim hole ) ,Class SM (full sizeandslim hole ).
CHEMICAL COMPOSITION
|
Nominal Size |
5/8 in. |
3/4 in. |
7/8 in. |
1 in. |
1-1/8 in. |
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|
mm |
mm |
mm |
mm |
mm |
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|
Full Size Sucker Rod Coupling、Full Size Polished Rod Coupling and Full Size Sub-Coupling |
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|
ODªOutsside Dimension |
Size |
46 |
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|
Tolerance |
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|
-0.01 |
-0.25 |
-0.01 |
-0.25 |
-0.01 |
-0.25 |
-0.01 |
-0.25 |
-0.01 |
-0.25 |
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|
Size |
4 |
4 |
4 |
4 |
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|
Lª |
|||||||||||
|
Length |
Tolerance |
||||||||||
|
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
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|
D2ª |
Size |
||||||||||
|
Minimum |
|||||||||||
|
D3ª; |
Size |
35 |
|||||||||
|
Tolerance |
|||||||||||
|
-0.055 |
-1.39 |
-0.073 |
-1.85 |
-0.073 |
-1.85 |
-0.073 |
-1.85 |
-0.073 |
-1.85 |
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|
BC1ₑ Maximun |
Size |
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|
Slim Hole Sucker Rod Coupling、Slim Hole Polished Rod Coupling and Slim Hole Sub-Coupling |
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|
Size |
2 |
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|
ODª |
|||||||||||
|
Outsside Dimension |
Tolerance |
||||||||||
|
-0.01 |
-0.25 |
-0.01 |
-0.25 |
-0.01 |
-0.25 |
-0.01 |
-0.25 |
||||
|
Size |
4 |
4 |
4 |
4 |
|||||||
|
Lª |
|||||||||||
|
Length |
Tolerance |
||||||||||
|
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
||||
|
D2ª |
Size |
||||||||||
|
Minimum |
|||||||||||
|
Size |
35 |
||||||||||
|
D3ª |
Tolerance |
||||||||||
|
-0.035 |
-0.89 |
-0.073 |
-1.85 |
-0.073 |
-1.85 |
-0.073 |
-1.85 |
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|
BC1ₑ Maximun |
Size |
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|
a As shown in figure C.1 |
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|
b The nominal size of the coupling is the same size as the sucker rod |
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|
c Slim hole coupling is the reduces of the outer diameter |
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|
d The size of the outer diameter and length shall be determined by the maximum thread size |
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|
e See figure c.2. The type is selected by the manufacturer |
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|
f For the full size and slim hole diameter coupling of 1 inch L=4.500in.(114.3mm) |
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|
g For the full size sub-coupling of 1-1/8 inch L=5.000in.(127.0mm) |
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|
Coupling Chemical Component |
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|
AISI |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
V |
Cu |
Al |
|
1541 |
≤0.04 |
≤0.04 |
≤0.3 |
≤0.35 |
≤0.06 |
≤0.35 |
≤0.035 |
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|
5140 |
≤0.025 |
≤0.025 |
≤0.3 |
/ |
/ |
≤0.2 |
/ |
||||
|
4135 |
≤0.025 |
≤0.025 |
≤0.3 |
/ |
≤0.2 |
/ |
|||||
|
4120 |
≤0.025 |
≤0.025 |
≤0.3 |
/ |
≤0.2 |
/ |
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|
Tensile Strength（MPa） |
Yield Strength（MPa） |
Elongation（%） |
Reduction of Area（%） |
|
≥655 |
≥405 |
≥16 |
≥48 |
|
Hardness |
GRADE T |
GRADE SM |
|
56HRA-62HRA |
＞595HV200 |
|
Hardness |
GRADE T |
GRADE SM |
|
56HRA-62HRA |
＞595HV200 |
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