Customization: | Available |
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After-sales Service: | Yes |
Warranty: | 1 Year |
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The polished rod is manufactured from high quality alloy steel, which is high tensile strength, smooth surface and long service life. All of the polished rod is produced in accordance with API Spec 11B. The polished rod is mainly has two types: regular grade D polished rod and end upsetting polished rod. The regular grade D polished rods are connected by the polished rod coupling, and the end upsetting polished rods are connected to the sucker rod directly for usage.
There is another type of polished rod, which has ultra-high tensile strength, long stoke and corrosion resistant polished rod. This type of sucker rod is made of 20CrMo alloy steel. It is heat treated by quenching and tempering and the rod surface is metal sprayed with nickel-based alloy (Ni35) to make the rod be better resistance to the corrosion.
1) Material: Carbon steel, Alloy Steel
2) Product Name: Spray Metal Polished Rod
3) Standard: API 11B
4) API and ISO certified
5) Size: 1 1/8''-1 1/2"
6) Application of Polished Rod
Polished rods are designed for connecting sucker rod strings to beam pumping units via polished rod packing. The rods are round cross-section bars.
7) Features of Polished Rod
a. They are all designed in accordance with API Spec 11B
b. They are all manufactured through cold-drawing, rolled threading, and surface grinding, etc.
c. It has high strength, good toughness, smooth surface and long lifetime etc.
8) Parameters of Polished Rod
Name | Size | Grade | Mechanical properties | Length (m) |
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Rel | Rm | A | Z | ||||
(MPa) | (MPa) | (%) | (%) | ||||
Polished rod-upset on one end | φ25 | H | ≥795 | 965~1195 | ≥ 10 | ≥ 45 | 6.00 8.00 9.50 10.00 |
φ29 | D | ||||||
φ32 | |||||||
φ38 | ≥ 590 | 795~965 | ≥ 10 | ≥ 50 | |||
Polished rod-normal type | φ25 | H | ≥795 | 965~1195 | ≥ 10 | ≥ 45 | |
φ29 | D | ||||||
φ32 | |||||||
φ38 | ≥ 590 | 795~965 | ≥ 10 | ≥ 50 | |||
Polished rod-metal spray | φ32 | H | ≥795 | 965~1195 | ≥ 10 | ≥ 45 | 6.00 8.00 9.14 |
Combined with packing set in packing box to seal wellhead and prevent oil,gas,water disclosure.
Interim connector between sucker rod and mule head hanger.
Finishing indicator diagram test.
Complete various wellhead operation, such as pump striking, regulating pump setting.
Mechanical Properties Of Steel Sucker Rod:
Sucker Rod Weight List | |||||||
Size | 5/8" | 3/4" | 7/8" | 1" | 1-1/8" | 1-1/4" | 1-1/2" |
kg/m | 1.68 | 2.4 | 3.2 | 4.2 | 5.3 | 6.4 | 9.5 |
Mechanical Property OF Steel Polished Rod | |||||||||||
GRADE | Minimum Yield Strength(0.2% Residual Deformation) | Minimum Tensile Strength | Maxmum Tensile Strength | Elongation200mm% | Reduction of Area Z% | HRC | HB | Fatigue Life | |||
psi | MPa | psi | MPa | psi | MPa | ≥13 | ≥50 | ≥1.0X106 | |||
C | 60000 | 414 | 90000 | 621 | 115000 | 793 | ≥13 | ≥50 | |||
D | 85000 | 586 | 115000 | 793 | 140000 | 965 | ≥13 | ≥50 | |||
KD | 85000 | 590 | 115000 | 795 | 140000 | 965 | ≥13 | ≥50 | |||
H | 115000 | 795 | 140000 | 965 | 173339 | 1195 | ≥13 | ≥45 | |||
EHL | / | / | 188500 | 1300 | 217500 | 1500 | / | / | ≥50 | ≥320 | ≥2.5X106 |
Note: When the minimum yield strength cannot be measured, it should be considered to be processed into standard sample and install extensometer to measure. | |||||||||||
a It is generally made of high quality carbon steel, which can reach the mechanical properties of the table b A molybdenum steel (but not limited to this type of steel) is generally used, and the effective heat treatment can achieve the mechanical properties of this table |
Chemical Composition OF Commonly Used Sucker Rod | |||||||||||
AISI | C | Si | Mn | P | S | Cr | Ni | Mo | V | Cu | Al |
4130 | 0.26-0.33 | 0.17-0.37 | 0.4-0.7 | ≤0.025 | ≤0.025 | 0.8-1.1 | ≤0.3 | 0.15-0.25 | / | ≤0.2 | / |
4140 | 0.38-0.45 | 0.17-0.37 | 0.5-0.8 | ≤0.025 | ≤0.025 | 0.9-1.2 | ≤0.3 | 0.15-0.25 | 0.04-0.09 | ≤0.2 | / |
4142 | 0.38-0.45 | 0.17-0.37 | 0.5-0.8 | ≤0.025 | ≤0.025 | 0.9-1.2 | ≤0.3 | 0.15-0.25 | 0.04-0.09 | ≤0.2 | / |
4330 | 0.3-0.35 | 0.15-0.35 | 0.8-1.1 | ≤0.025 | ≤0.025 | 0.8-1.1 | 1.65-2.0 | 0.2-0.3 | 0.05-0.10 | ≤0.2 | / |
4720 | 0.19-0.23 | 0.15-0.35 | 0.85-1.05 | ≤0.025 | ≤0.025 | 0.8-1.05 | 0.9-1.2 | 0.22-0.30 | 0.02-0.05 | 0.40-0.60 |
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