Grade EA1T
Corresponding Standard YB /T 4324-2013
Steel Billet for High Speed and Heavy Load Train Axles
Classification Alloy Steel
EA1T Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo V
Minimum Value - - - - - - - - - -
Maximum Value 0.4 0.5 1.2 0.02 0.02 0.3 0.3 0.2 0.08 0.06
EA1T Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Impact Energy Absorption
KV2
J
550~700 ≥350① ≥24 KU②:
Longitudinal, 20°C: ≥40
Transverse, 20°C: ≥25

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