API 11b 3/4" 7/8" 1" Sm Grade Sucker Rod Coupling

• After-sales Service: Yes
• Warranty: 1 Year
• Manufacturing Process: CNC Milling
• Surface Treatment: Galvanized
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Model NO.: 3/4"
• Product Name: Sucker Rod Coupling
• Type: Sm
• Size: 3/4" 7/8" 1"
• Transport Package: Wooden Box
• Specification: 5/8 3/4 7/8 1
• Trademark: ZX
• Origin: China

Product Description

Product Description

Class T and Class SM coupling for sucker rods are manufactured as per API Specification 11B. For the thread cutting, we are using cold form rolled by displacing rather than by removing of material for making the coupling thread. The thread rolling cutting results in a compressive stress at the root of the thread, giving maximum strength to the traditional weak point of cut-thread couplings.
Class SM coupling, the spray metal is a specification hardening process and is applied on the base metal.
1)Type: SM sucker rod coupling
2)Standard: API Spec 11B

3)Material: AISI 5I40

4)Spray Material: Ni60A Alloy Coating

5)Basic Hardness: HRC 16-23

6)Surface Hardness: HRC 55-62

7)Hole rate: <2%

8)Min. Hardness of the layer: 595HV0.2

 

Product Parameters

ype	grade	O.D(mm)	Minimum lengh(mm)	Hardness	Weight(kg)	Standard
						reference
3/4"	19-T	41.05~41.43	101.6~103.17	56-62HRA	0.65	API 11B
7/8"	22-T	45.75~46.13	45.75~46.13	56-62HRA	0.8	API 11B
1"	25-T	55.35~55.73	55.35~55.73	12-23HRA	1.15	API 11B

Chemical Properties, %: Class T Coupling
Steel	AISI    5140
C	0.37~0.44
Si	0.17~0.37
Mn	0.50~0.80
P	≤0.040
S	≤0.040

Spray Metal Coating Chemical  Properties, %: Class SM Coupling
Carbon	0.50~1.00
Silicon	3.50~5.50
Phosphorus	0.00~0.02
Sulfur	0.00~0.02
Chromium	12.00~18.00
Boron	2.50~4.50
Iron	3.00~5.50
Cobalt	0.00~0.10
Titanium	0.00~0.05
Aluminum	0.00~0.05
Zirconium	0.00~0.05
Nickel	Balance

Packaging & Shipping

 

 

Company Profile

Dongying Zhaoxin Industry and Trade Co.,Ltd is an ISO-9001, ISO-14001, OHSAS-18001 certified company and has all the quality systems in place for design, planning,manufacturing and quality monitoring & traceability to ensure that Dongying Zhaoxin Industry and Trade Co.,Ltd products match the highest quality & reliability Standards similar to any International major in this field.

Dongying Zhaoxin Industry and Trade Co.,Ltd with perfect attitude, product and service, is going to make further development together with customers at home and abroad .