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 |
Detail Information
| Product Name: | API 11B Class T And Class SM Sucker Rod Coupling 3/4" 7/8" 1" | Keywords: | Sucker Rod Couplings |
|---|---|---|---|
| Usage: | Oil Production | Size: | 5/8",3/4",7/8",1",1 1/8" |
| Grade: | C,K,D,KD,HL,HY | Class Type: | Class T, SM |
| High Light: | API 11B Sucker Rod Coupling, Sucker Rod Coupling 3/4", Class SM Sucker Rod Coupling | ||
Product Details:
| Place of Origin: | China |
| Brand Name: | OilMan |
| Certification: | API 11B |
| Model Number: | 5/8",3/4",7/8",1",1 1/8" |
Payment & Shipping Terms:
| Minimum Order Quantity: | 100 pc |
|---|---|
| Price: | USD2-20/pc |
| Packaging Details: | Export Wooden Case |
| Delivery Time: | 25-30 work days |
| Payment Terms: | L/C, T/T, Western Union, MoneyGram |
| Supply Ability: | 50000 pieces per month |
