ASTM A588 Grade K Steel is a kind of high-strength low-alloy, and intended primarily for use in welded bridges and buildings where savings in weight or added du
ASTM A588 Grade K Steel is a kind of high-strength low-alloy, and intended primarily for use in welded bridges and buildings where savings in weight or added durability are important. The atmospheric corrosion resistance of ASTM A588 Grade K in most environments is substantially better than that of carbon structural steels with or without copper addition.
ASTM A588 Grade K Steel Plate Chemical Composition
| Grade |
C |
Mn |
P |
S |
Si |
Ni |
Cr |
Cu |
V |
Mo |
|
A588 Grade K |
≤0.17 |
0.5-1.2 |
≤0.04 |
≤0.05 |
0.25-0.5 |
≤0.4 |
0.4-0.7 |
0.20-0.5 |
0.02-0.1 |
0.1 |
ASTM A588 Grade K Steel Plate Mechanical Properties
| Grade |
Thickness |
Yield Strength |
Tensile Strength |
Elongation |
Elongation |
|
A588 Grade K |
less 100mm |
≥345 |
≥485 |
18 |
21 |
|
100-125mm |
≥315 |
≥460 |
|||
|
125-200mm |
≥290 |
≥435 |
ASTM A588 Grade K steel plate is used for all kinds of welding, fastening and riveting structures such as steel frame structure, channel, reservoir and container, vehicle and tool structure. When properly exposed to the atmosphere, ASTM A588 Grade K steel plate is suitable for many applications in the bare(unpainted) condition. In general, the ASTM A588 Grade K plate is up to 8 in.[200 mm] inclusive in thickness.
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