Stainless steel polished rod
Spray Polished Rod
Function of Polish Rod
Polish rodis a kind of special sucker rod connected with sucker rod and beam hanger. It is at the top of sucker rod,need to bear the most strength,sowith bigger diameter and highersteel gradethan sucker rod,and the surfaceis very smooth.
We also provide:API AISI 4140 Polished Rod,3/4" Polished Rod.
Main function:
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.
CHEMICAL COMPOSITION
Sucker rod manufacturer:Found Petroleum Equipment
Type specification table:
|
Nominal value |
Rod body diameter D+0.127-0.254（+0.005-0.010）mm（in) |
Length Lmm士 50mm （Lft 士 2in) |
Thread nominal diameter mm（in） |
mm (in） Outer thread shoulder outer diameter |
Suitable sucker rod size mm (in) |
|
29 |
|
2438, 3353, 4877, 6707, 7315, 7925(8, 11. 16. 22. 24 , 26) |
24 （15/16） PR |
一 |
16 (5/8) |
|
27 （1 1/16） PR |
一 |
19 (3/4) |
|||
|
29 |
|
2438, 3353, 4877, 6707 , 7315, 7925 (8. 11, 16. 22 , 24 , 26) |
24 (15/16 ) SR |
16 (5/8) |
|
|
27 (1 1/16 ) SR |
19 (3/4) |
||||
|
32 |
|
3353, 4877， ,6707，7315, 7925 , 9144, 10973(11, 16, 22 . 24. 26, 30. 36) |
30 (1 3/16 ) PR |
一 |
22(7/8) |
|
32 |
|
3353, 4877， ,6707，7315, 7925 , 9144, 10973(11, 16, 22 . 24. 26, 30. 36) |
30 (1 3/16 ) SR |
22(7/8) |
|
|
38 |
|
4877, 6707，7315, 7925. 9144. 10973(16, 22. 24, 26, 30. 36) |
35（1 3/8）PR |
一 |
25(1) |
|
38 |
|
4877, 6707，7315, 7925. 9144. 10973(16, 22. 24, 26, 30. 36) |
40（1 9/16）SR |
29(1 1/8) |
Mechanical Property OF Stainless steel polished rod:
|
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 |
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Chemical Composition OF Commonly Used Sucker Rod:
|
Chemical Composition OF Commonly Used Sucker Rod |
|||||||||||
|
AISI |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
V |
Cu |
Al |
|
4130 |
≤0.025 |
≤0.025 |
≤0.3 |
/ |
≤0.2 |
/ |
|||||
|
4140 |
≤0.025 |
≤0.025 |
≤0.3 |
≤0.2 |
/ |
||||||
|
4142 |
≤0.025 |
≤0.025 |
≤0.3 |
≤0.2 |
/ |
||||||
|
4330 |
≤0.025 |
≤0.025 |
≤0.2 |
/ |
|||||||
|
4720 |
≤0.025 |
≤0.025 |
|||||||||
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