3/4 "SH API Class SM coupling
1)Type: SM SH coupling
New: Both-way Protection Globoidal Coupling
Full size SM coupling with big chamfer
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: less than 2%
7)Min. Hardness of the layer: 595HV0.2
8)Standard: API Spec 11B
9)Coupling diameter: 3/4 "
10)Weight: 0.47 KG/Pcs
11)Package: wooden cases
12)Payment Terms: T/T