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Yantai Yunsheng Petroleum Machine Accessories Co., Ltd. Company Brief:
Yunsheng Co.Ltd.,founded in1997, is a professional manufaturer of API Spec 11B Sucker Rod Coupling ,inclding Spray Metal coupling,class T coupling, SUB OD coupling, with various type of Full size,Slim Hole, Over Size, with Big Chamfer ,with Wrench Flat,with Bidirectional Cambered Surface Protection .And the thread size are available at 5/8",3/4",7/8",1",1_1/8.Owning world top level equipments and technicians ,the monthly production capacity is more than 30,000 pcs .All of our couplings are excellent in Quality and reasonable in Price.The production & inspection are being done fully in accordance with API Spec 11B standard.
Certificates & Honors: API
Products Brief :Sucker Rod Coupling is a joint for Sucker Rod, used in oilwell downhole for oil pumping and production. Yunsheng Sucker Rod Coupling are manufacturer from high quality Alloy Steel AISI 5140,fully in accordance with API Spec 11B standard ,inclding class SM coupling,class T coupling,Sub coupling,Full size, Slim hole and Over Size.
Main Couplings list Name Size Grade Characters Remarks Sucker Rod Coupling5/8”; 3/4”;7/8”; 1”, 1_1/8”T, SM Including the following SM Coupling, T Coupling, and SubCoupling SM Coupling5/8”; 3/4”;7/8”; 1”11/8”
SM It is processed with some special technology, sprayed with a layer of rust-proof, wear-proof and lessening friction alloy coating, based on the T Coupling.
Basic Material40Cr(AISI 5140)
Spec Full Size, Slim Hole&Over Size ,
StandardAPI Spec 11B
T Coupling5/8”; 3/4”;7/8”; 1”1_1/8”T,Full Size, Slim Hole and Over Size Couplings Sub Coupling 5/8”-3/4”;3/4”-7/8”;7/8”-1”1”-1-1/8”T, SM Connecting two sizes of sucker rod The Class T Sucker Rod Coupling:Our Class T coupling is using AISI 5140 to manufacturer.The coupling is coated using phosphate chemical treatment .The couplings are availble in full size,slim hole andover size.
Material: AISI 5140 Standard: API Spec 11B
Specification: O.D.: 1_1/2”(38.10mm) I.D.: 15/16”(23.81mm) Length: 4”(101.6mm) Weight: 0.56kg
Other Size: 3/4”; 7/8”;1”; 1_1/8”5
Features: The Class T sucker rod couplings are manufactured with a through hardness of between 16and 23 Rc. This results in high tensile and fatigue strength for the sucker rod couplings. The outside diameter of the sucker rod couplings is smooth to minimize stress concentrations, and an accurate chamfer allows for controlled contact stress.
The Spray Metal Sucker Rod Coupling: It can not only protect itself but also the rod,preventing and slowing down the wear.The coupling has many types and sizes ,and it is made of good quality steel alloy AISI 5140,covers Full sizes,Slim hole and Over size ,and has many types like Standard,Sub OD ,with Big Chamfer ,with Wrench Flat,with Bidirectional Cambered surface protection. It has three basic functions:wear proof,corrosion resisting and reducing the friction, and its lifetime is also longer,even twice of Class T coupling. API 5/8” Class SM Full Size Sucker Rod Coupling
1) Material: AISI 5140
2) Standard: API Spec 11B
3) Main specification: OD:1_1/2" (38.10mm) ID: 15/16"(23.81mm) Length: 4" (101.6mm) Weight: 0.56kg
4)Other Size: 3/4”; 7/8”;1”; 1-1/8”
5)Smoothness: 3.1*10-3
6)Coat Thickness(in): 0.01in ~ 0.02in
7)Basic hardness: HRC 16-23
8)Surface Hardness: HRC 55-62
9)Bonding Strength(Mpa): 484
10Hole rate: <2%
oilfield accessories for oil drilling equipment