Grade A steel
|
A
|
Comparison of steel grades
|
|
|
Norske Veritas
|
A
|
|
|
Germanischer Lloyds
|
A
|
|
|
Bureau Veritas
|
A
|
|
|
American Bureau of Shipping
|
A
|
|
|
USSR Register
|
A
|
|
|
Nippon Kaigi Kyoka
|
A
|
|
Chemical analysis -% by mass*
|
Grades
|
C
max
|
Si max
|
Mn.
max
|
P
max
|
S
max
|
Cr max
|
Cu max
|
Ni max
|
|
A
|
0.2
|
0.5
|
0.55
|
0.04
|
0.04
|
0.3
|
0.3
|
0.3
|
Mechanical properties
|
Grades
|
Yield Strength
ReH[N/mm2]
transv.min.
|
Tensile
Strength
Rm[N/mm2]transv.
|
Fracture
Elongation
[%]transv. min.
|
Impact bending test
|
||
|
Thickness
mm
|
Test temperature
°C
|
Impact work, KV,
J, min
|
||||
|
A
|
235
|
400 - 490
|
22
|
5.5 – 7.0
|
-40
|
19
|
|
7.5 – 9.5
|
-20
|
24
|
||||
|
≥10
|
0
|
27
|
||||
Source:
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