Steel A573 Gr70
📌 Overview and Technical Specifications
Steel A573 Gr70 is a high-strength, low-alloy structural steel commonly used in applications requiring improved toughness and durability. It is primarily used in the construction of pressure vessels, storage tanks, and structural components.
🛠 Specifications:
- Hardness: ≤ 250 HB
- Thickness: from 6 mm to 100 mm
- Yield strength: ≥ 485 MPa
- Tensile strength: 550–690 MPa
- Elongation: 17–21%
🧪 Chemical Composition
- Carbon (C): ≤ 0.26%
- Silicon (Si): 0.15 – 0.40%
- Manganese (Mn): 1.00 – 1.60%
- Phosphorus (P): ≤ 0.035%
- Sulfur (S): ≤ 0.040%
- Copper (Cu): ≤ 0.20%
- Balance: Iron (Fe)
⚙ Applications
Steel A573 Gr70 is widely used in the following industries:
- 🏗 Structural applications, including bridges and buildings
- 🛢 Storage tanks and pressure vessels
- 🚛 Heavy machinery and transportation equipment
- 🏭 Industrial equipment and structural supports
- ⚡ Energy and petrochemical industry
🌟 Features
- ✅ High strength and toughness
- ✅ Good weldability and formability
- ✅ Excellent resistance to mechanical stress
- ✅ Suitable for heavy-duty structural applications
- ✅ Enhanced durability in demanding environments
| Forms of supply of steels ASTM A573 Gr. 70 | ||||
| Steel Grade | Dimensions in mm | |||
| Thickness | Width | Length up to | ||
| ASTM A573 Gr. 70 | 6 — 200 | 1000 — 3000 | 16000 | |




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