SINCE 1997
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+86 186 3939 2017
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SINCE 1997
API CERTIFIED
PHONE:
+86 186 3939 2017
E-MAIL SUPPORT:
Sucker Rod
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
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.
Product Description
● Introduction
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.
● Specification
Material: high quality carbon steel or alloy steel.Grade: C, D, K, H. | Rod diameter: 5/8", 3/4", 7/8", 1" and 1-1/4".Length: 25', 26' and 30' for sucker rod. 2', 4', 6', 8', 10' for pony rod. |
Grade D Sucker Rod Mechanical Properties
● Type specification table
| Nominal Value | Φ16（5/8"） | Φ19（3/4"） | Φ22（7/8"） | Φ25（1"） | Φ29（11/8"） |
| Rod Body Diameter | 15.88+0.18-0.36 （0.625+0.007-0.014） | 19.05+0.20-0.41 （0.750+0.008-0.016） | 22.23+0.20-0.41 （0.875+0.008-0.016） | 25.40+0.23-0.46 （1.000+0.009-0.018） | 28.58+0.25-0.51 （1.125+0.010-0.020） |
Outer Diameter Of External Thread Shoulder | 31.8+0.13-0.25 （1.250+0.005-0.010） | 38.1+0.13-0.25 （1.500+0.005-0.010） | 41.3+0.13-0.25 （1.625+0.005-0.010） | 50.8+0.13-0.25 （2.000+0.005-0.010） | 57.2+0.13-0.25 （2.250+0.005-0.010） |
| Wrench Width ±0.8（±0.031） | 22.2（0.875） | 25.4（1.000） | 25.4（1.000） | 33.3（1.313） | 38.1（1.500） |
| Wrench Length | 31.8（1.250） | 31.8（1.250） | 31.8（1.250） | 38.1（1.500） | 41.3（1.625） |
| API Rod Length ±50（±2.0） | 508（20） 1118（44） 1727（68） 2337（92） 2946（116） 7518（296） 9042（356） | 508（20） 1118（44） 1727（68） 2337（92） 2946（116） 7518（296） 9042（356） | 508（20） 1118（44） 1727（68） 2337（92） 2946（116） 7518（296） 9042（356） | 508（20） 1118（44） 1727（68） 2337（92） 2946（116） 7518（296） 9042（356） | 508（20） 1118（44） 1727（68） 2337（92） 2946（116） 7518（296） 9042（356） |
Domestic Rod Length±50 | 900，1400，1900, 2400,2900,3400, 7900,9900 | 900，1400，1900, 2400,2900,3400, 7900,9900 | 900，1400，1900, 2400,2900,3400, 7900,9900 | 900，1400，1900, 2400,2900,3400, 7900,9900 | 900，1400，1900, 2400,2900,3400, 7900,9900 |
| Upset Flange Diameter | 31.1+0.13-3.17 （1.219+0.005-0.125） | 35.7+0.13-3.17 （1.406+0.005-0.125） | 38.1+0.13-3.17 （1.500+0.005-0.125） | 48.4+0.13-3.17 （1.906+0.005-0.125） | 55.6+0.13-3.17 （2.188+0.005-0.125） |
| AR±3.2（±0.125） | 47.6（1.875） | 57.1（2.250） | 66.7（2.625） | 76.2（3.000） | 85.7（3.375） |
| CR+1.59-0.40 （+0.063-0.016） | 3.2（0.125） | 3.2（0.125） | 4.8（0.188） | 4.8（0.188） | 4.8（0.188） |
● Mechanical Properties Of Steel Sucker Rod
| Grade | Minimum Yield Strength(0.2% Residual Deformation） | Minimum Tensile Strength | Maximum Tensile Strength | Elongation 200mm% | Reduction Of Area Z% | Surface Hardness HRC | Core Hardness HB | Fatigue Life | |||
| K | 60000 | 414 | 90000 | 621 | 115000 | 793 | ≥13 | ≥50 | / | / | / |
| 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 | / | / | / |
| HL | 115000 | 795 | 140000 | 965 | 173339 | 1195 | ≥13 | ≥45 | / | / | / |
| HY | / | / | 140000 | 965 | 173339 | 1195 | / | / | ≥42 | ≥224 | / |
| EHL | / | / | 188500 | 1300 | 217500 | 1500 | / | / | ≥50 | ≥320 | ≥2.5X106 |
| Note: when the yield strength cannot be measured, it should be considered to be processed into standard sample installation drawing | |||||||||||
| a It is generally made of high quality carbon steel, which can reach the mechanical properties of the table. b Molybdenum steel (but not limited to this type of steel) is generally used, and the mechanical properties of this table can be achieved through effective heat treatment. | |||||||||||
● Chemical Composition Of Common Sucker Rod
| AISI | C | Si | Mn | P | S | Cr | Ni | Mo | V | Cu | Al |
| 1541 | 0.36-0.45 | 0.15-0.35 | 1.35-1.65 | ≤0.04 | ≤0.04 | ≤0.3 | ≤0.35 | ≤0.06 | 0.04-0.09 | ≤0.35 | ≤0.035 |
| 4120 | 0.17-0.24 | 0.17-0.37 | 0.4-0.7 | ≤0.025 | ≤0.025 | 0.8-1.1 | ≤0.3 | 0.15-0.25 | / | ≤0.2 | / |
| 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 | / |
| 4138 | 0.37-0.45 | 0.17-0.37 | 0.9-1.2 | ≤0.025 | ≤0.025 | 0.9-1.2 | ≤0.3 | 0.2-0.3 | / | ≤0.2 | / |
| 4138M | 0.37-0.45 | 0.17-0.37 | 0.9-1.2 | ≤0.025 | ≤0.025 | 0.9-1.2 | ≤0.3 | 0.2-0.3 | 0.04-0.09 | ≤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 | / |
| 3130 | 0.22-0.29 | 0.15-0.35 | 0.71-1.0 | ≤0.025 | ≤0.025 | 0.42-0.65 | 0.72-1.0 | 0.01-0.06 | / | ≤0.2 | / |
| 4320 | 0.18-0.42 | 0.15-0.35 | 0.8-1.0 | ≤0.025 | ≤0.025 | 0.7-0.9 | 1.15-1.5 | 0.2-0.3 | 0.04-0.09 | ≤0.35 | ≤0.035 |
| 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 | / |
| 4621 | 0.18-0.23 | 0.17-0.37 | 0.7-0.9 | ≤0.025 | ≤0.025 | ≤0.35 | 1.65-2.0 | 0.2-0.3 | / | ≤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 | / |
● 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 |
Production
● 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.
● Forging machine
● Quenched-tempered heat treatment
● HY sucker rod heat treatment
Mechanical processing
● Applications
The sucker rod is widely used in the oil extraction industries. The different grade sucker rod can be applied in different applications.
Grade C sucker rod: suitable for use in shallow Wells and non-corrosive 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.
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