Grade T9A
Corresponding Standard YB /T 5058-2005
Cold-rolled spring and tool steel strips
Classification Carbon Steel
T9A Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu
Minimum Value 0.85 - - - - - - -
Maximum Value 0.94 0.35 0.4 0.03 0.02 0.25 0.2 0.3
T9A Mechanical Properties
Tensile Strength
σb
Mpa
Elongation or Extension Rate
δ
%
0.10~3.00, annealed steel strip ≤735 ≥10
0.10~3.00, cold hard steel strip 735~1175
T9A Corresponding Standards(Same grade name, different standards)

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