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ASTM A572 steel plate is a popular grade of high-strength low-alloy (HSLA) steel that is typically used in structural applications. A572 steel contains chemical alloys that enhance the material’s hardness and ability to bear weight, and this material is lightweight relative to steel grades with similar compositions.
There are five different grades of A572 steel plate: Grade 42, Grade 50, Grade 55, Grade 60 and Grade 65. Each of these grades have slight differences in their mechanical properties and chemical compositions, which may make them more fitting for certain applications. A572-50, however, is the most common A572 grade.
EQUIVALENT GRADE OF ASTM A572 Grade 50
| ASTM/ASME/SAE | Europe EN 10025 | Germany DIN | ISO | Japan JIS | China GB |
| A572 Gr.50 | S355JR | ST52-3 | S355 | SPFC590 | Q345,Q355 |
CHEMICAL COMPOSITION
| ASTM A572 Gr50 Plate Chemical Composition | ||||||
| Element | C | Si | Mn | P | S | Nb |
| Content | 0.20% | 0.40% | 1.50% | 0.04% | 0.05% | 0.005~0.05% |
APPLICATIONS
A572 material is widely used in engineering structures, construction steel structures, construction machinery, mining and mountain machinery, trucks, bridges, pressure vessels, etc., especially for construction and engineering machinery components that require good weldability and toughness. For example, riveted or bolted structures or welded structures for bridges and other applications.
