JIS 3106 SM490YA,SM490YB steel plate application:
SM490YA,SM490YB steel are kind of hot rolled steels to be used for bridges, ships, rolling stocks, petroleum storage tanks,containers and other contstructions that are required superiority in weldability.
Symbol of grade
Symbol of grade |
Applicable thickness mm |
|
|
SM490YA |
Steel plates ,coil, sections, and flat 100 or under |
|
|
SM490YB |
Steel plates ,coil, sections, and flat 100 or under |
|
SM 490YA,SM 490YB chemical composition
GRADE |
Si |
Mn |
P |
S |
|
|
≤ |
|||||
|
SM490YA |
≤0.20 |
≤0.55 |
≤1.60 |
0.035 |
0.035 |
|
SM490YB |
≤0.20 |
≤0.55 |
≤1.60 |
0.035 |
0.035 |
SM 490YA,SM 490YB mechanical property
GRADE |
Tensile Strength（σb/MPa） |
Offset Yield Strength（σs/MPa） |
Elongation |
|
|
% |
||||
|
SM490YA |
490-610 |
≥365 |
15 min. |
|
|
SM490YB |
490-610 |
≥365 |
15 min. |
|
REMARK: The above data is calculated based on 16mm thickness steel plate.
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