ASTM A573 Grade 70 is a structural quality carbon-manganese-silicon steel with the following properties:
| Property | Value |
|---|---|
| Yield Strength (min) | 290 MPa (42 ksi) |
| Tensile Strength | 485-620 MPa (70-90 ksi) |
| Elongation in 8″ (min) | 18% |
| Elongation in 2″ (min) | 21% |
Chemical Composition:
| Element | Percentage |
|---|---|
| Carbon (max) | 0.28% |
| Manganese | 0.85-1.20% |
| Phosphorus (max) | 0.035% |
| Sulfur (max) | 0.04% |
| Silicon | 0.15-0.40% |
ASTM A573 Grade 70 steel is commonly used in:
ASTM A573 Grade 70 is typically produced through controlled rolling processes. Available dimensions include:
| Product Type | Thickness (in/mm) | Width (in/mm) | Length (in/mm) |
|---|---|---|---|
| Mill Plate | 0.188 – 1.500 / 4.78 – 38.10 | 72 – 120 / 1800 – 3050 | 120 – 1020 / 3050 – 25910 |
| Temper Leveled Plate | 0.100 – 0.500 / 2.54 – 12.7 | 48 – 96 / 1200 – 2400 | 72 – 720 / 1800 – 18300 |
ASTM A573 Grade 70 has good weldability. It is presupposed that a welding procedure suitable for the grade of steel and intended use or service will be utilized. The steel is made by fine grain practice, which contributes to its improved toughness.
| Grade | Yield Strength (min MPa) | Tensile Strength (MPa) |
|---|---|---|
| Grade 58 | 220 | 400-490 |
| Grade 65 | 240 | 450-530 |
| Grade 70 | 290 | 485-620 |
ASTM A573 Grade 70 offers a balance of strength and toughness, making it suitable for various structural applications. Its improved notch toughness compared to standard carbon steels can lead to better performance in certain service conditions, particularly at atmospheric temperatures.
At HL Steel Company, we offer high-quality ASTM A573 Grade 70 steel coils tailored for various industrial applications, ensuring optimal performance and durability for your projects.
121, Building 114, Jiangsu Street, Wuzhou International Industrial Expo City, Xinwu District, Wuxi City,Jiangsu Province,China
Building 114, Jiangsu Street, Wuzhou International Industrial Expo City, Xinwu District, Wuxi City
We will contact you within 1 working day, please pay attention to the email with the suffix “[email protected]”.
