Home
>
Material
U20302
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
30
(
U20302
)
(
30#
)
Min
Max
GB /T 699-2015
Quality carbon structure steels
30
(
U20302
)
Min
Max
GB /T 710-2008
Hot-rolled quality carbon structural steel sheets and strips
30
(
U20302
)
(
30#
)
Min
Max
For Reference Only