API Sub coupling
1）Type: T&SM FS, SH
2）Coupling diameter:
5/8"*3/4",
3/4"*7/8",
7/8"*1",
1"*1-1/8"
3) Weight: 0.43-1.56 KG/Pcs
4）Material: AISI 5I40
5）Spray Material of SM Coupling ：Ni60A Alloy Coating
6)Basic Hardness: HRC 16-23
7）Surface Hardness of SM Coupling: HRC 55-62
8）Hole rate of SM Coupling : ＜2%
9）Min. Hardness of the layer of SM Coupling: 595HV0.2
10) Operating Temperature: -1000~400℃
11) Life: Class SM Sub Coupling > 180 days;
Class T Sub Coupling > 90 days
12）Standard: API Spec 11B
13)Package: wooden case
14)Payment Terms: T/T
Our New Products
1) SM Coupling with great bevel edge
2) Two-way Cambered Protection Coupling
If you have any interest in our sucker rod couplings, please do not hesitate to let we know, and we’ll supply you with our high quality products and best services.
TEL : 86-535-6728219 / FAX : 86-535-6908536
Dongxing Road Shandong Yantai China [CN]
Company Advantage
Detail Company Introduction
Yantai Yunsheng Petroleum Machine Fittings Co., Ltd., is a modern high-tech enterprise specialized in manufacturing petroleum machine accessories--sucker rod coupling . The company can itself research and develop to produce the Deflection-proof and Abrasion-proof Sucker Rod Coupling，Common Coupling and Sub couplings,which have passed the ISO 9001 and API SPEC11B Quality Management System Certifications，Industrial Production Permit of China，and Import& Export Licence. The excellent value for money makes Yunsheng Petroleum Machine Fittings enjoying high and long-standing reputation home and abroad.
ECROBOT CO., Ltd, Business Registration Number : 220-88-71747, CEO J.W.Park, TEL : +82-2-552-7676, E-mail : E-mail : Contact us Address : (Hwanghwa B/D 11F, Yeoksam-dong)320, Gangnam-daero, Gangnam-gu, Seoul, South Korea
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