Product Description
Sucker Rod Couplings are manufactured from quenched and tempered alloyed steels. API 11B couplings are classified into two classes: Grade T and Grade SM (Spray Metal).
Grade SM coupling has a spray-welded metal layer on the surface. The appearance is silver-white generally, the surface hardness is high, and the wear resistance and corrosion resistance are relatively good.
Compared with Grade T couplings, Grade SM couplings have the following features:
(1) High surface hardness and good wear resistance
According to SY/T 5029-2013, the surface hardness required for Grade T couplings is HRA56~62, and the metal hardness of the spray welding layer of Grade SM couplings is ≥595HV0.2.
(2) The surface finish is high. The surface roughness required for grade T coupling is ≤ 3.2, and that of grade SM coupling is ≤ 1.6
Our sucker rod couplings, reducer couplings, small wellbore couplings, spray welded couplings and polished rod couplings can meet the requirements of API 11B. We can also produce couplings of different classes according to the requirements of our customers.
Product Parameters
Specifications
| Size |
5/8" |
3/4" |
7/8" |
1" |
1 1/8" |
1 1/2" |
| Grade |
T / SM |
| Standard |
API 11B |
Grade T Sucker Rod Coupling
Polished Rod Coupling
Polished rod coupling is designed to connect polished rod and sucker rod. Sucker rod coupling cannot be used to connect polished rod; polished rod coupling can be used to connect sucker rod.
Company Profile
About Us
Maierda, located in Central China, is a professional supplier of petroleum equipment and tools.
Our factory has more than 15 years' experience in the R&D, production, sales and service of oilfield equipment and machinery.
Our sales team has more than 10 years importing & exporting experiences in the oil & gas industry.
Main Products
We are mainly engaged in oil field equipment and tools including polished rod couplings, sucker rod couplings, polished rod clamps, sucker rod centralizers (guides), polished rod, sucker rod, tubing couplings, casing couplings, crossovers, pup joints, etc.
We also provide some other competitive products in the oil & gas field including casing centralizers, stop collar, tubing centralizer, drill pipe centralizer, float equipment (collar and shoe), cementing plugs, cementing heads, stage collars, cement baskets, hammer unions, chiksan swivel joints, etc.
Our Services
We are committed to providing high-quality and cost-effective products and services to our customers.
We guarantee and uphold the highest standards in customer service, client satisfaction, and quality product delivery in the oilfield industry.
Hope to have a good cooperation with you!
Detailed Photos
API 11b Oil Drilling Tools Grade Sm Sucker Rod Coupling
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