API 11B 3/4" SM slim hole sucker eod coupling
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sucker rod coupling
Our sucker rod couplings are up to API Spec 11B standard, including class SM coupling, class T coupling, Sub coupling, Full Size coupling, Slim Hole coupling, are availbale in 5/8, 3/4, 7/8, 1 and 1 1/8. Manufactured with high quality Carbon steel AISI 5I40 /4135 . Other specification are also available as per your request. Our surface alloy thermal spray coating process of our Spray Metal Coupling has reached the international advanced level.
This is API Coupling, class SM
1) Material: seamless alloy steel,
2) Standard: API Spec 11B
3) Grade:SM. Full size
4) coupling diameter: 5/8 ",3/4",7/8",1",1-7/8"
5) Coupling Hardness: 58(-) HRA
6) Metal coating hardness: 819(+) Hv0.2
OUR NEW SPECIAL PRODUCTS
1, Both-way Protection Globoidal Sucker Rod Coupling
2, Full Size Sprey Metal Coupling with Big Chamfer
We're the special manufacturer, and the cost is much lower than some Inter-trade enterprise, but we can supply more excellent quality, to reach a longterm business relationship with you.