19in FS API Class SM coupling (China)

3/4 " FS API Class SM coupling

1-Type: SM FS 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: <2%

7-Min. Hardness of the layer: 595HV0.2

8-Standard: API Spec 11B

9-Coupling diameter: 3/4 "

10-Weight: 0.60 KG/Pcs

11-Package: wooden cases

12-Payment Terms: T/T