ASTM A633 Grade E mainly use the alloy element in solution strengthening, fine-grain strengthening and deposition strengthening to improve the strength of the steel, at the same time, keep the ductile-brittle transition temperature of ASTM A633 Grade E unchanged. So that ASTM A633 Grade E could get the high strength and also have good performance at low temperature.
ASTM A633 Grade E chemical composition
| C |
Si |
Mn |
P |
S |
N |
|
≤0.22 |
0.15-0.50 |
1.15-1.50 |
≤0.035 |
≤0.04 |
≤0.03 |
ASTM A633 Grade E mechanical properties
| Yield Strength Mpa |
Tensile Strength Mpa |
Elongation in 2 in. % |
|
≧380 |
515-690 |
≧23 |
The elongation of ASTM A633 Grade E is more than 23%, and ASTM A633 Grade E has good plasticity and impact resistance, can avoid brittle fracture when subjected to impact; At the same time, cold bending, welding and other processes are easy to carry out. In addition, the brittleness of ASTM A633 Grade E transformation temperature is low, even at -40 ℃, the value is still not less than 27 J. ASTM A633 Grade E has great significance and means to the engineering components of transportation such as vehicles, ships, offshore oil production platforms, containers and bridges used in cold regions.
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