Products Description
A656 steel plate refers to a high-strength, low-alloy (HSLA) structural steel plate that conforms to the ASTM A656/A656M specification. The ASTM A656/A656M specification covers hot-rolled structural steel plates for use in truck frames, crane booms, rail cars, and similar applications.
A656 steel plates are characterized by their high strength and improved formability compared to regular carbon steels. They offer excellent weldability and impact toughness, making them suitable for applications that require high strength and durability.

A656 steel plates are typically produced through controlled rolling or thermo-mechanical controlled processing (TMCP). This manufacturing process helps optimize the mechanical properties of the steel, including its strength and toughness.
Material Properties
| Grade | Yield Point (ksi) | Tensile Strength (ksi) | Min. 8" Elongation % |
| 50 | 50 | 60 | 20 |
| 60 | 60 | 70 | 17 |
| 70 | 70 | 80 | 14 |
| 80 | 80 | 90 | 12 |
| 100 | 100 | 110 | 12 |
Chemical Composition
| A656 (All Grades) Type 3 | |
| Carbon max | 0.18% |
| Manganese max | 1.65% |
| Phosphorus max | 0.025% |
| Sulfur max | 0.030% |
| Silicon max | 0.60% |
| Columbium | 0.008-0.10% |
| Vanadium max | 0.08% |
| Nitrogen max | 0.030% |
| A656 (All Grades) Type 7 | |
| Carbon max | 0.18% |
| Manganese max | 1.65% |
| Phosphorus max | 0.025% |
| Sulfur max | 0.030% |
| Silicon max | 0.60% |
| Columbium | 0.10% max |
| Vanadium max | 0.15% |
| Nitrogen max | 0.030% |
| A656 (All Grades) Type 8 | |
| Carbon max | 0.18% |
| Manganese max | 1.65% |
| Phosphorus max | 0.025% |
| Sulfur max | 0.030% |
| Silicon max | 0.60% |
| Columbium | 0.10% max |
| Vanadium max | 0.15% |
| Titanium max | 0.15% |
| Nitrogen max | 0.030% |
ASTM A656 Equivalent Material Table
| Equivalent Material | European | Germany | Italy | France | Japan |
|---|---|---|---|---|---|
| ASTM A656 | S335J2 S335K2 S335K2+N |
FE510DD | E36-4 | SS490YA |
STOCK SIZES
| Grade | Gauge (Inches) | Width (Inches) | Length (Inches) |
|---|---|---|---|
| A656 | 0.1875 | 96 | 240/480 |
| A656 | 0.2500 | 96 | 240/480 |
| A656 | 0.3125 | 96 | 240/480 |
| A656 | 0.3750 | 96 | 240/480 |
| A656 | 0.5000 | 96 | 240/480 |
| A656 | 0.6250 | 96 | 240/480 |
| A656 | 0.7500 | 96 | 240/480 |
| A656 | 0.8750 | 96 | 240/480 |
| A656 | 1.0000 | 96 | 240/480 |
Products Application
ASTM A656 steel plate is a series of high-strength low-alloy steels that can improve weldability, formability, and notch toughness in the rolled condition.
It typically offers yield strengths ranging from 50 ksi (345 MPa) to 80 ksi (550 MPa), with tensile strengths between 70 ksi (485 MPa) and 95 ksi (655 MPa), depending on the grade (such as A656 Grade 50, 60, 70, or 80). This material demonstrates good impact toughness at temperatures as low as –50°F (–45°C).
ASTM A656 steel plate is widely used in construction equipment, crane booms, automobile frames, and general manufacturing, where a combination of high strength, light weight, and durability is required. It also performs reliably in low-temperature environments, maintaining structural integrity under demanding conditions.

About Us
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