Sucker Rod

1. Definition

Steel or fiber reinforced plastic rod of standard length and diameter with externally threaded ends, typically used for transmitting mechanical power to the subsurface pump.

2. Applications

The sucker rod is widely used in the oil extraction industries. The different grade sucker rod can be applied in different well conditions.

Grade C sucker rod: Moderate strength, has a certain degree of resistance to the sulfide stress cracking, it is suitable for sour environments.

Grade D sucker rod: The grade D sucker rod is manufactured from high-quality heat-treated steel alloy, which has high tensile and yield strength, it is can be used in the non-corroding or mildly corroding environments.

Grade K sucker rod: The grade K sucker rod has a good corrosion resistance in H2S, CO2, and NaCl media, it is widely used in corrosion environments.

Grade H sucker rod: This is a type of sucker rod with extra high tensile strength it is ideal for deep and large wells.

Mechanical Properties

3. Specifications

Material: high quality carbon steel or alloy steel.

Grade: C, D, K, H.

Rod diameter: 5/8", 3/4", 7/8", 1" and 1-1/8".

Length:

25', 26' and 30' for sucker rod.

2', 4', 6', 8', 10' for pony rod.

Dimensions

4. Production Process

For common sucker rod:

Raw Material Test → Cold Straighten → Cut → Forge → Hot Treatment → Hot Alignment → Shot Blasting → Rod Head Machining → Assembly → Protective Cap → Package → Aczoiling Treatment.

For extra high tensile sucker rod:

Raw Material Test → Cold Straighten → Cut → Forge → Quenched and Tempered → Hot Treatment → Hot Alignment → Shot Blasting → Rod Head Machining → Surface Quenched → Assembly → Protective Cap → Package → Aczoiling Treatment.

5. Package and loading

Package:

Metal pallet for saving space and convenient to transport.

Sucker rods are packaged by the metal pallet