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Material
20A
Standard
ISO 683-13-1986
Heat-treatable steels,alloy steels and free-cutting steels--Part 13: Wrought stainless steels
Standard
GJB 1951-1994
Specification for quality structure steel bars for avication
Standard
HB /Z 136-2000
Heat treatment process of aviation structural steel
Chemical Composition
(%)
Standard
Material Designation
Chemical Composition (%)
ISO 683-13-1986
Heat-treatable steels,alloy steels and free-cutting steels--Part 13: Wrought stainless steels
20a
Min
Max
GJB 1951-1994
Specification for quality structure steel bars for avication
20A
Min
Max
HB /Z 136-2000
Heat treatment process of aviation structural steel
20A
Min
Max
For Reference Only
