ASTM A588 Grade K 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. When properly exposed to the atmosphere, ASTM A588 Grade K 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.
ASTM A588 Grade K steel chemical composition
|
C |
Mn |
P |
S |
Si |
Ni |
Cr |
Mo |
Cu |
V |
|
≤0.17 |
0.5-1.2 |
≤0.04 |
≤0.05 |
0.25-0.5 |
≤0.4 |
0.4-0.7 |
0.1 |
0.3-0.5 |
0.005-0.05 |
ASTM A588 Grade K steel mechanical properties
|
Thickness |
Yield Strength
Mpa |
Tensile Strength
Mpa |
Elongation
%
in 200mm |
Elongation
%
in 50mm |
|
less 100mm |
≥345 |
≥485 |
18 |
21 |
|
100-125mm |
≥315 |
≥460 |
|
125-200mm |
≥290 |
≥435 |
Not only we could produce A588 Grade K plate according to ASTM A588/A588M, but also the below specifications are listed could be added by customers:
1, Simulated Post-Weld Heat Treatment of Mechanical Test Coupons
2, Charpy V-Notch Impact Test
3, Drop-Weight Test(for Material 0.625 in.[16 mm] and over in Thickness)
4, Ultrasonic Examination
Besides, we also could do various of heat treatment, please contact us freely for more information.
