Polished Rod
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Polished Rod
Introduction
The polished rod we manufactured is formed to API Spec 11B-2010(27th).
The polished rod is manufactured by high quality alloy steel. The structure and all sizes of polished rod and coupling is fully compliance with above standard. Both ends is pin thread with 9 degree on last thread, connecting with couplings.
Mechanical Property
|
级别 Grade
|
D级
|
HL
|
HY
|
|
抗拉强度Rm
Tensile Strength |
793-965MPa
|
965～1195MPa
|
965～1195MPa
|
|
屈服强度Rel
Yield Strength |
≥586MPa
|
≥793MPa
|
/
|
|
断面收缩率Z
Reduction of area |
≥50%
|
≥45%
|
/
|
|
延伸率A（200mm）
Elongation |
≥10%
|
≥10%
|
/
|
|
表面硬度
Surface Hardness |
|
/
|
≥42 HRC
|
|
芯部硬度
Base Hardness |
|
/
|
≥20 HRC
|
|
淬硬层厚度The thickness of hardening layer
|
|
/
|
5%～13% of Rod Dia.
|
Technical Parameters
|
规格Spec. |
级别Grade |
杆体直径（mm） Rod Dia. |
镦粗端螺纹直径Dr（in） |
未镦粗端螺纹名义直径DT1（in） Thread Nominal Dia. Of Non-upsetting end |
匹配抽油杆 Sucker Rod （mm） |
长度L（mm） Length |
|
22(7/8＂) |
D/HL/HY |
22.23 |
3/4 SR |
M20 |
22（7/8＂） |
7620
8000
9140
10000
11000
12000 |
|
25(1＂) |
D/HL/HY |
25.4 |
7/8 SR |
5/8 SR |
22（7/8＂） |
|
|
29(1 1/8＂) |
D/HL/HY |
28.58 |
1 SR |
3/4 SR |
25（1＂） |
|
|
32(1 1/4＂) |
D/HL/HY |
31.75 |
/ |
7/8 PR |
29（1 1/8＂） |
|
|
38(1 1/2＂) |
D/HL/HY |
38.1 |
/ |
1 PR |
29（1 1/8＂） |
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