1.Meterial: AISI 5140(40Cr) 2.Type: Class T&SM, Class SUB 3.Certificate: API SPEC 11B

product intruduce:

API Sucker Rod Coupling,7/8" Class SM Full Size

1)Standard: API Spec 11B

2)Basic Material: seamless alloy steel AISI 5140 (40Cr), 3)Coat Material:Ni60A Alloy Coating

4)Coat Thickness: 0.01-0.02 in5)Basic Hardness: HRC 16-23 (HRA 58-62)

6)Surface hardness: HRC 55-62 7)Metal coating hardness: 595 HV0.2

8)Type:Full size/Slim Hole9)Main Spec of 7/8" Class SM sucker rod coupling

   weight:0.74kg;

   O.D.:1 13/16(46.04mm)

   Type: full size   

   Length:4in(101.6mm)

10)Other Coupling diameter: 5/8 ", 3/4", 1", 1-1/8"

11)New product: Two-way Globoidal Protection sucker rod coupling

                                 Full size sucker rod coupling with big chamfer

 

Class SM sucker rod coupling is our main products, Moreover, with over 20000pcs monthly capacity, Yunsheng sucker rod couplings include T sucker rod coupling, Sub sucker rod coupling, Full Size sucker rod coupling, Slim Hole sucker rod coupling, all of them are up to API 11 B and available in size of 5/8", 3/4", 7/8", 1"and 1-1/8".

 

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