API sucker rod couplings, class SM

1. API SPEC 11B
2. Basic Material: AISI 5140
Coat layer: Ni60A
3.Used to connect the sucker rod for the oil extraction.

API Class SM Full Size Sucker Rod Coupling

1) Material: Seamless Alloy Steel 40Cr (AISI 5140)
2) Standard: API Spec 11B
3) Size: 5/8'';3/4";7/8";1";1-1/8"
4)Smoothness: 3.1*10-3
5)Coat Thickness(in): 0.01in ~ 0.02in
6)Basic hardness: HRC 16-23
7)Surface Hardness: HRA 58-62
8)Intergrate intension(Mpa): 484
9)Hole rate: <2%
10)Min. Hardness of the layer: 595HV0.2
11)Min. Tensile Strength: 655 Mpa
12)Operating Temperature: -1000~400 centigrade
13)Life: > 180 days
14) Package: wooden case, 1000pcs each case.
15) Usage: oil exploration equipment, accessories, oil sucker rod coupling

7/8 SM SUCKER ROD COUPLINGS


NEW PRODUCTS:
7/8 FULL SIZE SUCKER ROD COUPLING WITH BIG CHAMFER


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