Mechanical Properties
  Table.4 Tensile Test of Weather Resistant ALSTAR
 
Symbol
Yield Point
N/mm²
Tensile Strength
N/mm²
Elongation
%
Commercial quality
C
( >225 )
( >270 )
( >23 )
Structural
quality
400N grade
K400
( >275 )
>400
( >16 )
440N grade
K440
( >345 )
>440
( >12 )
Note. Figures in parentheses are representative samples.
  
  Table.5 Bending Test of Weather Resistant ALSTAR
 
Symbol
Bending Angle
Inside Radius
Commercial quality
C
180º

1tR
t=thickness

Structural quality400N grade
K400
440N grade
K440
Note.The bending test shall be done by bending a test specimen by 180º at a right angle to the rolling direction. The outside of the bend shall be free from exfoliation of the coating and from cracking and breaking of base metal. This dose not apply to those parts of the specimen that are within 7mm of either edge.
 
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