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Material
U20402
Standard
GB /T 699-1999
Quality Carbon Structural Steels
Standard
GB /T 699-2015
Quality carbon structure steels
Standard
GB /T 710-2008
Hot-rolled quality carbon structural steel sheets and strips
Chemical Composition
(%)
Standard
Material Designation
Chemical Composition (%)
GB /T 699-1999
Quality Carbon Structural Steels
40
(
U20402
)
(
40#
)
Min
Max
GB /T 699-2015
Quality carbon structure steels
40
(
U20402
)
Min
Max
GB /T 710-2008
Hot-rolled quality carbon structural steel sheets and strips
40
(
U20402
)
(
40#
)
Min
Max
For Reference Only
