Description
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Yosun (Tianjin) Piping Engineering Co., Ltd. is one of the most credible manufacturers and suppliers of carbon steel track bolts and nuts in China. Please feel free to wholesale customized carbon steel track bolts and nuts at competitive price from our factory. If you have any enquiry about quotation, please feel free to email us.
Chemical Requirements
|
Element, %
|
Bolts
|
Nuts
|
|
Heat-Cast
|
Heat-Cast
|
|
|
Carbon, min or range
|
0.28–0.55
|
0.30–0.55
|
|
Phosphorus, max
|
0.030
|
0.04 |
|
Sulfur, max
|
0.050
|
0.06 |
Full-Section Tension Test Requirements
|
Nominal Bolt Size, in. (mm)
|
Threads per Inch
|
Stress Area, in.2(cm2 )
|
Minimum Full-Section Test Load,
lbf (kN)
|
|
7⁄8 (22.2)
|
9 | 0.462(2.98) | 50 800 (226) |
|
15⁄16 (23.8)
|
9 | 0.540(3.48) | 59 400 (264) |
|
1 (25.4)
|
8 | 0.606(3.96) | 66 600(296) |
|
1-1⁄16 (27.0)
|
8 | 0.695(4.48) | 76 400 (340) |
|
1-1⁄8 (28.6)
|
7 | 0.763(4.92) | 83 900 (373) |
Reduced-Section Tension Test Requirements
|
Property
|
Minimum Requirement
|
|
Tensile strength, psi (MPa)
|
110 000(760) |
|
Yield point, psi (MPa)
|
80 000 (550) |
|
Elongation in 2 in. or 50 mm, %
|
12 |
|
Reduction of area, %
|
25 |
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