Product properties
˙ Fatigue resistance
SpecificationAMS 6411、AMS 6427、BMS 7-122
4330M
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Introduction
Industrial Applications
˙ Aerospace industry:Mainly used for aircraft landing gear, flight structure, bolt, and shaft
Specifications
Chemical composition (wt. %)
Element
C
Si
Mn
P
S
Ni
Cr
Mo
Cu
V
Min
0.28
0.2
0.8
-
-
1.65
0.75
0.35
-
0.05
Max
0.33
0.35
1
0.01
0.01
2
0.95
0.5
0.35
0.1
Physical Property
Density (g/cm^3)
7.84
Thermal Expansion Coefficient
Temperature (℃)
10^-6/℃
888
21
Thermal Conductivity
Temperature (℃)
W/m·K
269
24.3
Mechanical Property
Items
Annealed
Hardness
248 HBW max.
Size Ranges
Products
Diameter (mm)
Length (mm)
Rolled bar
10~95
3,000~5,700
Forged bar
95.2-600
3,000~5,700
Billet
130x130, 140x140, 150x150, 160x160
7,000 max
Flat bar
80x80 (min.)
Based on the customer needs
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