| Customization: | Available |
|---|---|
| After-sales Service: | Yes |
| Warranty: | 1 Year |
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Grade C sucker rods are made of high-quality alloy steel, with moderate strength, great plasticity and good corrosion resistance etc. Grade C sucker rods can be used in weakly acidic media without sulfurized stress fracture.
Grade D sucker rods are made of high-quality alloy steel, with moderate strength, great plasticity and lifespan after heat treatment. Grade D sucker rods can be used in rather deep oil wells with a corrosion-free or mildly corrosive environment.
Grade K sucker rods are made of high-quality alloy steel with a rather high content of Ni, with moderate strength, great plasticity and good corrosion resistance etc. Grade K sucker rods can be used in acidic media.
Grade KD sucker rods combined the material of Grade K and the performances of Grade D, achieving high strength and certain corrosion resistance at the same time. Grade KD sucker rods can be used in rather deep oil wells with a corrosive environment.
Grade HL sucker rods (ultra-high strength) share the same structure and size with Grade D. Through appropriate heat treatment, the strength of Grade HL is 22% greater than Grade D's, without sacrificing plasticity. Grade HL sucker rods can be used deep or large pumping oil wells with a corrosion-free or mildly corrosive environment.
Grade HY sucker rods (ultra-high strength) basically share the same structure, size and parameters with Grade D, with a strength 22% greater than that of Grade D. Grade HY sucker rods are made of high-quality alloy steel. On the basis of the heat pre-treatment, the surface goes through secondary quenching by induction heating, so that the surface can bearing greater pressure and the strength and lifespan of the sucker rods are improved.
Pony rod is the sucker rod shorter than 25 ft, and they vary in length. They are most commonly placed adjacent to the polished rod at the top of the rod string, on top of the downhole pump for handling purposes, and on top of the polished rod with appropriate couplings to prevent the string from falling downhole if the polished-rod clamp slips
| nch Nominal Size | mm O.D. of Rod | In Nominal Diameter of the Thread | Width for the Spanner | Length | ||
| mm | Inch | mm | ft | |||
| 5/8 | 15.88 | 1 5/16 | 22.2 | 7/8 | 7518 9042 |
25 30 |
| 3/4 | 19.05 | 1 1/16 | 25.4 | 1 | ||
| 7/8 | 22.23 | 1 3/16 | 25.4 | 1 | ||
| 1 | 25.40 | 1 3/8 | 33.3 | 1 5/16 | ||
| 1 1/8 | 28.58 | 1 9/16 | 38.1 | 1 1/2 | ||
| Length of the pony rod: 20, 44, 68, 92, 116 inches | ||||||
API Grades |
||||
| Grade D | ||||
| D Carbon | D Alloy | KD | D Special | |
| Steel | 4130 | 4142 | 4720 | 4330 |
| C | 0.26-0.33 | 0.38-0.45 | 0.19-0.23 | 0.29-0.37 |
| Mn | 0.40-0.70 | 0.80-1.00 | 0.80-1.05 | 0.70-0.95 |
| Si | 0.17-0.37 | 0.15-0.35 | 0.15-0.35 | 0.15-0.35 |
| Ni | 0.30Max | 0.45Max | 0.90-1.20 | 1.65-2.00 |
| Cr | 0.80-1.10 | 0.80-1.10 | 0.80-1.05 | 0.80-1.10 |
| Mo | 0.15-0.25 | 0.15-0.25 | 0.24-0.30 | 0.20-0.30 |
| MECHANICAL PROPERTIES | ||||
| YS(Ksi) | 85Min | 85Min | 85Min | 85Min |
| UTS(Ksi) | 115-140 | 115-140 | 115-140 | 115-140 |
| HEAT TREATMENT | ||||
| Quenched | Normalized | Normalized | Normalized | |
| Tempered | Tempered | Tempered | Tempered | |
| Rod OD | 5/8″, 3/4″, 7/8″, 1″,11/8″ | |||
| (mm) | (15.88), (19.05), (22.23), (25.40) , (28.58) | |||
| Rod Length | 25', 30' (+/- 2.0″per API requirement) | |||
| (m) | (7.62), (9.14) (+/- 50.80mm per API requirement) | |||
| 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 | -- | -- | -- |
Dongying Zhaoxin Industry and Trade Co.,Ltd is an ISO-9001, ISO-14001, OHSAS-18001 certified company and has all the quality systems in place for design, planning,manufacturing and quality monitoring & traceability to ensure that Dongying Zhaoxin Industry and Trade Co.,Ltd products match the highest quality & reliability Standards similar to any International major in this field.
Dongying Zhaoxin Industry and Trade Co.,Ltd with perfect attitude, product and service, is going to make further development together with customers at home and abroad .
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