API Class SM 5/8 "SH sucker rod couplings
Product Description
SUCKER ROD COUPLINGS
1)Type: SM SH sucker rod 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: 5/8 "
10)Weight: 0.41 KG/Pcs
11)Package: wooden cases
12)Payment Terms:T/T
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