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Material
45A
Standard
GB /T 699-1999
Quality Carbon Structural 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 (%)
GB /T 699-1999
Quality Carbon Structural Steels
45A
(
U20453
)
Min
Max
GJB 1951-1994
Specification for quality structure steel bars for avication
45A
Min
Max
HB /Z 136-2000
Heat treatment process of aviation structural steel
45A
Min
Max
For Reference Only
