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Material
3A21
Standard
GB /T 3190-2008
Standard
GB /T 3195-2016
Aluminium and aluminium alloys drawn round wires
Standard
GB /T 3190-2020
Chemical Compositions of wrought aluminum and aluminium alloys
Standard
GB /T 3191-2019
Extrusion rods and bars of aluminium and aluminium alloys
Standard
GJB 2053A-2008
Specification for aluminium alloys structural sheet for aerospace
Standard
GJB 2379-1995
Specification for aluminium and aluminium alloys drawn(rolled) tubes for aerospace
Chemical Composition
(%)
Standard
Material Designation
Chemical Composition (%)
GB /T 3190-2008
3A21
(
LF21
)
Min
Max
GB /T 3195-2016
Aluminium and aluminium alloys drawn round wires
3A21
(
LF21
)
Min
Max
GB /T 3190-2020
Chemical Compositions of wrought aluminum and aluminium alloys
3A21
(
LF21
)
Min
Max
GB /T 3191-2019
Extrusion rods and bars of aluminium and aluminium alloys
3A21
Min
Max
GJB 2053A-2008
Specification for aluminium alloys structural sheet for aerospace
3A21
(
LF21
)
Min
Max
GJB 2379-1995
Specification for aluminium and aluminium alloys drawn(rolled) tubes for aerospace
LF21
(
二十一号工防锈铝
)
(
3A21
)
Min
Max
For Reference Only
