Short hook tail frame
update：2016-11-28 09:16 Click：times
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Short hook tail frame Introduction of main performance index Name Maximum permanent deformation (mm) at 3940kN loading Minimum ultimate load (KN) Strength requirement 0.8 4060 Mechanical properties Yield strength tensile strength Elongation
introduce
Short hook tail frame
Introduction of main performance index
| Name | Maximum permanent deformation (mm) at 3940kN loading | Minimum ultimate load (KN) |
| Strength requirement | 0.8 | 4060 |
Mechanical properties
|
Yield strength |
tensile strength | Elongation rate | Section shrinkage | hardness | To attack |
| V- type gap（-40℃） | |||||
| (MPA) | (MPA) | % | % | (HB) | (J) |
| ≥850 | ≥950 | ≥16 | ≥55 | 269～321 |
≥50 |
1 Product Name: short forged hook tail frame
2 weight: 80kg
3 forging material: 25MnCrNiMoA
4 induction heating
5 grain size is not less than 6
6 non metallic inclusions maximum grade 2
7 heat treatment: normalizing + tempering
8 the surface of the forging is not allowed to crack, fold.
9 ultrasonic testing and magnetic particle testing
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