oil well API 11B sucker rod coupling

Rod are manufactured from hot rolled alloy steel. Rod bars are machine straightened and cold drawn to the required size. The rod bar ends are hot forged according to API designed sizes. The rods are then heat treated over the full length.As per requirement of mechanical properties, the rods are normalized and tempered to the specified level or quenched and tempered to the required hardness and strength. Care is taken to achieve metallographic structure with no residual stresses in the rod.A sample specimen is cut from the heat treated material and is tested for ultimate tensile strength, yield strength and elongation. The rod is then again checked for straightness. The forged ends are properly aligned with its body. Rods are cleaned by shot-blasting to remove any scale and oxidation. The forged ends are machined on C.N.C. Lathe machines as per API dimensions and checked with API approved gauges.

1. Are you manufacturer or trader company?

We are manufacturer and we could supply more professional technical services and goods.
The goods are new or used, if you will make technical drawing and production plans for us?
All our goods are new ones, the production schedule will offer to you once getting your purchase order.

2. Do you have related inspection equipments?

Yes, our factory is equipment all test equipments, and I could send their pictures and test documents to you.

3. Could you tell me if your price includs the third party inspection charges?

No, our price do not include the third party inspection charge, and we will notice on our Quotation.

4. Where did your products sell out?

United States, Canada, Mexico, Venezuela, Colubia, and other South American Region Russica, Azerbaijan and Central Asia Countires, UAE, Saudi Arabia and Mddle East Counties.


we are a professional manufacturer of oil downhole tools , high quality and reasonable price . 
Any problem about our products , welcome here .
Contact person :Alisa