| Customization: | Available |
|---|---|
| After-sales Service: | Yes |
| Warranty: | 1 Yea |
|
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SM class has an outer coating of nickel-chromium basis with a minimum thickness of 200 microns outer diameter thermally fused to the braked, confers to it a hardness ranging from 58 to 62 HRC, which increases wear resistance and increases corrosion resistance. The outer surface is rectified under API roughness values.
Material: high quality carbon steel or alloy steel. (AISI 1045, AISI 4135).
Thread size: 5/8", 3/4", 7/8", 1" and 1-1/8".
Length: 4", 4.5" and 5".
Grade: T and SM.
Type: sucker rod coupling, polished coupling and sub-coupling.
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Chemical Properties, %: Class T Coupling
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|
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Steel
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AISI 5140
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C
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0.37~0.44
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Si
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0.17~0.37
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Mn
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0.50~0.80
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P
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≤0.040
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S
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≤0.040
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Spray Metal Coating Chemical Properties, %: Class SM Coupling
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|
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Carbon
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0.50~1.00
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Silicon
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3.50~5.50
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Phosphorus
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0.00~0.02
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Sulfur
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0.00~0.02
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Chromium
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12.00~18.00
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Boron
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2.50~4.50
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Iron
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3.00~5.50
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Cobalt
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0.00~0.10
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Titanium
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0.00~0.05
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Aluminum
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0.00~0.05
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Zirconium
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0.00~0.05
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Nickel
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Balance
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OD
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Coupling OD
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Length
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Wrench length
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Wrench width
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|
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mm
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in
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(inch- mm)
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(inch- mm)
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mm
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mm
|
|
16
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5/8
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38.1(1.500)
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101.6(4.000)
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31.8
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34.9
|
|
19
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3/4
|
41.3(1.625)
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101.6(4.000)
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31.8
|
38.1
|
|
22
|
7/8
|
46.0(1.812)
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101.6(4.000)
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31.8
|
41.3
|
|
25
|
1
|
55.6(2.187)
|
101.6(4.000)
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31.8
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47.6
|
|
29
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1 1/8
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60.3(2.375)
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114.3(4.500)
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41.3
|
53.9
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Dongying Zhaoxin Industry and Trade Co.,Ltd is an ISO-9001, ISO-14001, OHSAS-18001 certified company and has all the quality systems in place for design, planning,manufacturing and quality monitoring & traceability to ensure that Dongying Zhaoxin Industry and Trade Co.,Ltd products match the highest quality & reliability Standards similar to any International major in this field.
Dongying Zhaoxin Industry and Trade Co.,Ltd with perfect attitude, product and service, is going to make further development together with customers at home and abroad .
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