Sinker Bar
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Sinker Bar
Introduction
The sinker bar we manufactured is formed to API Spec 11B-2010(27th).It is made of high quality alloy steel. Structure and all sizes of sinker bar and coupling are fully compliance with above standard. Both ends of sinker bar are standard structure of pin thread, connected with couplings.
Mechanical Property
|
等 级Grade
|
抗拉强度Rm
Tensile Strength Mpa |
屈服强度REl
（0.2%的残余变形）Mpa Yield Strength |
伸长率A 200mm%
Elongation |
端面收
Reduction of area 缩率Z% |
|
C（1级）
|
621-793
|
≥414
|
≥13
|
≥50
|
|
K（2级）
|
621-793
|
≥414
|
≥13
|
≥60
|
|
D（3级）
|
793-965
|
≥586
|
≥10
|
≥50
|
|
KD（4级）
|
793-965
|
≥586
|
≥10
|
≥50
|
Technical Parameters
|
规格Spec
|
杆体直(mm)
Rod Dia. |
螺纹名义直径（in）
Thread Nominal Dia. |
螺纹直径(mm)
Thread Dia. |
长度L(mm)
Length |
|
28
|
28.6
|
5/8"
|
23.81
|
6000
7620 8000 9140 |
|
32
|
31.75
|
5/8"
|
23.81
|
|
|
35
|
34.93
|
3/4"
|
26.99
|
|
|
38
|
38.1
|
3/4"
|
26.99
|
|
|
41
|
41.28
|
7/8"
|
30.16
|
|
|
44
|
44.45
|
7/8"
|
30.16
|
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