API Spec 11B standard high quality anti-corrosion sucker rod for oilfield
Sucker rod is an important part of a sucker rod pumping equipment. Sucker Rod connect with coupling to be a rod string, and up through polished rod connection on the pumping unit or PCP motor, down connection on the pump piston or PCP, its role is to ground the reciprocating movement of the pumping unit horsehead suspension point is passed to the downhole pump or pass the rotation of the PCP motor torque to downhole PCP.
Ordinary sucker rod is manufactured according to API Spec 11B which mainly includes grade C and D. Grade H sucker rod is developed to suit for deep well and larger pumps.
Pony rod: A short rod for spacing out a rod string.
API 11B polished rod pony rod sucker rod
1.Sucker rod size
| SN | Normal size in(mm) | Dia. of coated rod (mm) | Wrench section width (mm) | Wrench section Length (mm) | OD of Male thread step (mm) | Nipple neck length of ascension(mm) |
| 1 | 5/8(16) | 19 | 27 | 28 | 37 | 127 |
| 2 | 3/4(19) | 22 | 29 | 28 | 43 | 127 |
| 3 | 7/8(22) | 25 | 29 | 28 | 45 | 127 |
| 4 | 1(25) | 28 | 39 | 28 | 55 | 127 |
| 5 | 1 1/8(29) | 32 | 43 | 37 | 60 | 127 |
2. Grade and Mechanical Properties
| No. | Grade | Tensile Strength Rel(Mpa) | Yield Strength Rm(Mpa) | Percentage Elongation A(%) | Contraction Percentage Of Area Z(%) |
| 1 | C | 620-795 | ≥415 | ≥13 | ≥50 |
| 2 | K | 620-795 | ≥415 | ≥13 | ≥60 |
| 3 | D | 795-965 | ≥590 | ≥10 | ≥50 |
| 4 | KD | 795-965 | ≥590 | ≥10 | ≥50 |
| 5 | HL | 965-1195 | ≥795 | ≥10 | ≥45 |
| 6 | HY | 965-1195 |
| pumping unit | multiphase flow meter station | steam injection boiler |
| sucker rod pumps | wellhead and christmas tree | casing and tubing pipes |
| Composite Plated Technology /pipes | Vacuum Insulated Tubing and Casing | precision rolling pipes |




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Step 1
Payment and order readiness
Minimum order: 10 Units
Payment terms, specifications, and order details are confirmed before preparation begins.
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Step 2
Preparation
15 days
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Step 3
Packaging and dispatch
Approx. shipping fee: $ 499,029.00 for 10 rods · Fastest delivery: Nov 6 (58 days)
Final packing, freight, and delivery dates are confirmed before dispatch.
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