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API 11B Class T And Class SM Sucker Rod Coupling 3/4" 7/8" 1"

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Dongying Oilman Machinery Equipment Co.,Ltd.

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Model Number :	5/8",3/4",7/8",1",1 1/8"
Certification :	API 11B
Price :	USD2-20/pc
Payment Terms :	L/C, T/T, Western Union, MoneyGram
Supply Ability :	50000 pieces per month
Delivery Time :	25-30 work days

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API 11B Class T And Class SM Sucker Rod Coupling 3/4" 7/8" 1"

API 11B Class T and Class SM Sucker Rod Coupling 3/4" 7/8" 1"

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 T coupling is using AISI 5140 to manufacture.The coupling is coated using phosphate chemical treatment or black oxide on customer's request.For Class SM coupling, the spray metal is a specification hardening process and is applied on the base metal.
The couplings are available in full size, slim hole and over size.Also, combination couplings are available for different diameters (sub-coupling) for both Class T and Class SM couplings.
We recommend changing sucker rod couplings after three make-ups, provided the connection threads have been inspected and deemed acceptable for reuse.

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

OD		Coupling OD	Length	Wrench length	Wrench width
mm	in	(inch- mm)	(inch- mm)	mm	mm
16	5/8	38.1(1.500)	101.6(4.000)	31.8	34.9
19	3/4	41.3(1.625)	101.6(4.000)	31.8	38.1
22	7/8	46.0(1.812)	101.6(4.000)	31.8	41.3
25	1	55.6(2.187)	101.6(4.000)	31.8	47.6
29	1 1/8	60.3(2.375)	114.3(4.500)	41.3	53.9

API 11B Class T And Class SM Sucker Rod Coupling 3/4" 7/8" 1"

If any needs, pls contact us freely:

Dongying OilMan Machinery Equipment Co.

Address: North Two Road, Dongying City, Shandong Province, China.

Mob/whats app/we chat:+86 13475294399

*Email: christal@oilmancn.com Website: www.oilmanchina.com

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