Yunsheng is the manufacturer offering API sucker rod couplings in Shandong China. All the rod couplings are produced in fully accordence with API Spec 11B standard and manufactured with high quality Carbon steel AISI 5140. Our sucker rod couplings are very cost-effective, including class SM sucker rod coupling, class T sucker rod coupling, Sub sucker rod coupling, Full Size sucker rod coupling, Slim Hole sucker rod coupling. They are available in 5/8", 3/4", 7/8 ",1"and 1-1/8".

And we can also provide API sucker rod, pony rod, polished rod for you without any extra profit from our brotherhood company.

3/4"Full Size Spray Metal Sucker Rod Coupling

1) Material: Seamless Alloy Steel 40Cr (AISI 5140)

2) Standard: API Spec 11B

3) Main specification:

OD:1-5/8" (41.28mm)

ID: 1-1/16"(26.99mm)

Length: 4" (101.6mm)

Weight: 0.60kg

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℃

13)Life: > 180 days

OUR NEW SPECIAL PRODUCTS

Both-way Protection Globoidal Sucker Rod Coupling

Full Size Spray Metal Coupling with Big Chamfer

We are the special manufacturer, supply more excellent quality products in reasonable price , with the hope to build a long-term business relationship with you.