Tungsten Plated Polished Rod
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Tungsten Plated Polished Rod
Introduction
It adopts the tungsten plated process with multicomponent alloy of tungsten, nickel and phosphorus. The thickness of tungsten alloy layer is 0.08-0.10mm，hardness≥780HV.The layer is high strength and crack free and dense. Compared with unit or binary electroplating, our process can ensure higher plating adhesive strength, higher hardness, better wear resistance and anti-corrosion performance. It has high finish and can effectively solve eccentric wear of sucker rod surface. It’s mainly applicable to oilfield with corrosion and has excellent corrosion resistance under electrochemical corrosion, H2S and CO2 condition, significantly prolong the service life of rod string.
Mechanical Property
|
级别Grade
|
HL
|
HY
|
|
抗拉强度
Tensile Strength Rm |
965～1195MPa
|
965～1195MPa
|
|
屈服强度
Yield Strength Rel |
≥793MPa
|
/
|
|
断面收缩率
Reduction of area Z |
≥45%
|
/
|
|
延伸率
Elongation A（200mm） |
≥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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