Address:
Shandong,China
Main Products:
sucker rod coupling,T coupling,Sm coupling,sucker rod
Product Description
API Class SM coupling
1)Type: SM
2)Material: Carbon steel AISI 5I40
3)Spray Material: Ni60A Alloy Coating
4)Basic Hardness: HRC 16-23
5)Surface Hardness: HRC 55-62
6)Hole rate: <2%
7)Min. Hardness of the layer: 595HV0.2
8)Standard: API Spec 11B
9)Coupling diameter: 5/8 "
10)Weight: 0.41 KG/PCS
11)Package: Wooden cases
12)Payment Terms: T/T