Class Sm Full Size Coupling

• After-sales Service: Provided
• Warranty: 1 Year or 2000hours
• Manufacturing Process: Casting
• Surface Treatment: Sand Blast
• Operation Pressure: Vacuum
• Material: Cast Steel
• Model NO.: Class SM Full Size Coupling
• Transport Package: Skid
• Specification: 8, 350 x 2, 400 x 3, 000 mm
• Trademark: SAINTWAH
• Origin: Saintwah Inc.
• HS Code: 8207801000
• Production Capacity: 10000

Product Description

Class SM Full Size Coupling

The sucker rod coupling have the same box thread size in each end are used for connecting sucker rod and/or pony rod, and/or sinker bars with sucker rod threads.

Product Description

Introduction

1. Introduction of rod coupling

The sucker rod coupling have the same box thread size in each end are used for connecting sucker rod and/or pony rod, and/or sinker bars with sucker rod threads.
The polished rod coupling have the same box thread size in each end are used for connecting polished rod and/or sinker bars with polished rod threads to the sucker rod string.

The sub-coupling have different sizes of box threads in each end are used for connecting two sizes of sucker rods or a polished rod to a sucker rod string.

2. Manufacturing specification: API 11B

3. Material

3.1. Chemical Composition
The material shall be per manufacturer's specification and shall have a maximum sulfur content of 0.05%.

3.2. Mechanical Properties

Mechanical properties shall be in accordance with the manufacturer's specification with a minimum tensile strength of 95,000psi(655MPa). One of the following means shall be used to conform to the tensile requirements:

---Determination of the metal material hardness of 56 to 62 HRA inclusive; or

---Material test report per 6.3.2.2 for the heat of steel from the original mill if further processing does not change mechanical properties; or

---A tensile test per ASTM A370, OR ISO 6892 with s minimum of two tests performed after final thermal processing.

Nominal value	Outer diameter mm+0.13 -0.25	Length mm +1.57 0	Wrench square length mm	Wrench square intervalmm 0-0.8	Mechanical performance	Hardness	Surface roughness
5/8 SH	31.8	101.6	-	-	Grade T, GradeSM strength of extension ≥655MPa	Grade T Matrix Hardness56-62 HRA;Grade SM Spray coating hardness ≥595HV200 Thickness of coating layer 0.254-0.508mm	Grade T ≤1.6μm 2,Grade SM:≤0.2μm
5/8 FS	38.1	101.6	31.8	34.9
5/8 SH	38.1	101.6	-	-
3/4 FS	41.3	101.6	31.8	38.1
7/8 SH	41.3	101.6	-	-
7/8 FS	46	101.6	31.8	41.3
1 SH	50.8	101.6	-	-
1FS	55.6	101.6	31.8	47.6
1 1/8 SH	55.6	114.3	-	-
1 1/8	60.3	114.3	41.3	53.9

 

Grade & Steel for Coupling

Product	Type	Grade	Steel (AISI)
coupling	Sucker Rod Couplings Sub couplings Polished Rod Connections	T	5140, 1045
		SM	5140, 1045
		K	4620,4720
		KD	4330
		UHS	4142,4130,4330

 

 

Production

 

 

Our Company

 

SAINTWAH INC. sophisticated production equipment,detection means complete, strong technical force. Mainly includes the 800 tons of fully automatic intelligent horizontal forging machine, intelligent friction welding machine, 1000 tons of hydraulic straightening machine, 800 tons of hydraulic upsetting units and the most advanced heat treatment production line; Company has a staff of 268 people, including senior professional and technical personnel more than 50 people.

In 2008 the company officially became a member of China national petroleum corporation supplies suppliers. Products exported to Canada, the United States, Germany, Mexico, Australia, Turkey, Syria, Venezuela, Malaysia, Kazakhstan, Indonesia, India and so on more than 20 countries and regions.

We can accept the special requirement of order and technical cooperation, we are willing to work with global customers a friendly, equal and mutually beneficial trade.