| After-sales Service: | 12 Months |
|---|---|
| Warranty: | 12 Months |
| Manufacturing Process: | Forging |
| Surface Treatment: | Polishing |
| Operation Pressure: | Atmospheric Pressure |
| Material: | Cast Steel |
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier API 11B Full-Size Slim Hole Sucker Rod Coupling
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
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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
|
1) About Packing
Inner packing: white box, color boxes (upon request), Outer packing: cartons or pallets
2) Terms of payment:
We accept T/T,L/C
3)Terms of Shipment:
About 30 days after receiving the advance payment,or according to both parties agreement
4)Ports of shipment:
Tianjin,Qingdao, shanghai or other required Port, by sea or air
5)Guarantee:
One year since delivery.
6)Inspection:
100% testing before delivery.
Shandong Yacheng Petroleum Technology Co.,Ltd.(YCPT) is located in the second largest oilfield in Dongying city. We are the subsidiary of Xincheng Petroleum of Xincheng Petroleum Group,which was founded since 2003. We are first class supplier in vendor list of CNPC,SINOPEC,and CNOOC,and member of CCOIC, CCPIT and so on.
We have 19 years of experience in research,development and manufacturing of oil drilling equipment and drilling string, We have professional sales and after-sales service teams We are committed to develop, manufacture and supply of oilfield equipment, like oil and gas Gate Valve, Mud Pump and Spare Parts, Handling Tools,Drilling String, Well Control Equipments.
We have established a complete quality control system, all products & equipment manufactured as per international standard ISO 9001 and API standard. Based on our talented experienced technician team and sincerely marketing strategy, we have exported our products to more than 30 countries. The positive feedback from our clients are encouraging us to do much better and more strict on self-requirement. We will continue to provide quality products with favorable prices to all customers!
Welcome to Dongying city and visit our company. Let's open the delightful business cooperation!
1. who are we?
We are based in Shandong Province, China, start from 2016,sell to Eastern Europe(17.00%),Mid East(16.00%),Southeast Asia(16.00%),South America(15.00%),North America(14.00%),Eastern Asia(10.00%),Western Europe(8.00%),Oceania(2.00%),Africa(2.00%). There are total about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
API 6A Gate Valve / Mud Pump Spare Parts / Handling Tools / Drilling String / API 16A Well Control Equipments
4. why should you buy from us not from other suppliers?
we have been exporting drill pipe, handing tools,mud pump parts and well control equipments to well-known oil service companies in the world .We are the first class supplier of CNPC,SINOPEC,and CNOOC.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,CIP,FCA,CPT,Express Delivery;
Accepted Payment Currency:null;
Accepted Payment Type: T/T,L/C,Credit Card,PayPal,Western Union,Cash;
Language Spoken:English,Chinese,Russian.
Suppliers with verified business licenses
Audited Supplier 
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