ASME SA572 ASTM A572 high-strength low-alloy structural steel plate
ASME SA572 / ASTM A572 steel plate is a high-strength, low-alloy structural steel widely used in buildings, bridges, and construction machinery.
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ASME SA572 ASTM A572 high-strength low-alloy structural steel description
We supply ASME SA572 / ASTM A572 steel plates, a cost-effective high-strength low-alloy (HSLA) steel with excellent weldability, formability, and impact resistance. Ideal for bridges, buildings, heavy equipment, and structural components, these plates provide superior durability while reducing weight and material costs. Available in Grades 42, 50, 55, 60, 65 and thicknesses from 6mm to 200mm, meeting global standards like ASTM, EN, and JIS.As a trusted manufacturer, supplier, and exporter, we offer bulk orders for construction firms, fabricators, and machinery makers seeking high-performance steel for demanding structural applications. Custom sizes & grades available for sale.
ASME SA572 ASTM A572 high-strength low-alloy structural steel Data Sheet
| ASTM A572-Chemical Composition | |||||
| Element | Grade 42 | Grade50 | Grade55 | Grade60 | Grade65 |
| Carbon (C) | 0.21 | 0.23 | 0.25 | 0.26 | 0.23 (≤1.65″ thick) 0.26 (>1.65″ thick) |
| Manganese (Mn) | 1.35 | 1.35 | 1.35 | 1.35 | 1.65 |
| Phosphorus (P) | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
| Sulfur (S) | 0.03 | 0.03 | 0.03 | 0.03 | 0.03 |
| Silicon (Si) | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 |
| Niobium (Nb) | 0.005-0.05 | 0.005-0.05 | 0.005-0.05 | 0.005-0.05 | 0.005-0.05 |
| Vanadium (V) | 0.01-0.15 | 0.01-0.15 | 0.01-0.15 | 0.01-0.15 | 0.01-0.15 |
| Copper (Cu, optional) | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 |
| Nickel (Ni, optional) | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 |
| Chromium (Cr, optional) | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Molybdenum (Mo, optional) | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
| ASTM A572- Tensile Requirements | |||||
| Property | Grade 42 | Grade 50 | Grade 55 | Grade 60 | Grade 65 |
| Yield Strength (MPa) | 290 | 345 | 380 | 415 | 450 |
| Tensile Strength (MPa) | 415 | 450 | 485 | 520 | 550 |
| Elongation (%, 200mm specimen) | 20 | 18 | 17 | 16 | 15 |
| Elongation (%, 50mm specimen) | 24 | 21 | 20 | 18 | 17 |
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ASME SA572 ASTM A572 high-strength low-alloy structural steel Application
ASME SA572 / ASTM A572 steel plates are extensively used in heavy construction and structural applications where strength-to-weight ratio matters. In bridge construction, these plates are preferred for girders, trusses, and support structures due to their high yield strength (Grades 42 to 65) and excellent fatigue resistance. For high-rise buildings and industrial facilities, SA572 provides superior load-bearing capacity while reducing material costs compared to carbon steel. The transportation sector relies on these plates for truck frames, crane booms, and heavy equipment components that require durability under dynamic loads.
Infrastructure developers and steel fabricators choose SA572 for its consistent quality, easy weldability, and cost efficiency in large-scale projects. With thicknesses ranging from 6mm to 200mm, these plates meet rigorous standards for structural integrity in seismic zones and harsh environments. EPC contractors and construction companies worldwide trust SA572 for its proven performance in demanding structural applications.
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