What is the equivalent of A283 steel?
A283 steel is a low to intermediate tensile strength carbon steel commonly used for general structural purposes. It is often used in construction projects like bridges, buildings, and storage tanks. Several international steel standards provide equivalent grades that share similar properties, making them interchangeable in many applications.
Mechanical Properties of A283 Steel and Its Equivalents:
| Property | A283 Steel | EN S275JR (Europe) | DIN ST44-2 (Germany) | JIS SS400 (Japan) | GB Q235B (China) |
|---|---|---|---|---|---|
| Tensile Strength | 55-75 ksi (380-515 MPa) | 53-70 ksi (355-485 MPa) | 50-70 ksi (345-485 MPa) | 58-80 ksi (400-550 MPa) | 58-75 ksi (400-515 MPa) |
| Yield Strength | 30-50 ksi (205-345 MPa) | 36 ksi (250 MPa) | 36 ksi (250 MPa) | 33-49 ksi (230-340 MPa) | 33-49 ksi (230-340 MPa) |
| Hardness | 120-170 HB | 130-170 HB | 130-170 HB | 130-170 HB | 120-180 HB |
| Carbon Content | 0.26% max | 0.22% max | 0.22% max | 0.24% max | 0.12-0.20% |
| Weldability | Excellent | Excellent | Excellent | Excellent | Excellent |
How do the mechanical properties of A283 steel compare to its international equivalents?
Compared to internationally recognized steels such as A36 (ASTM) and S235JR (EN), ASTM A283 steel typically has lower yield strength and tensile strength, but higher elongation, making it suitable for low-stress applications such as pressure vessels. ASTM A36 steel has higher yield strength (≥250 MPa) and tensile strength (400-550 MPa), making it an ideal choice for general structural applications; while A283 C grade steel has lower yield strength (≥205 MPa) and tensile strength (380-515 MPa), but higher elongation (20-25%).
In what industries or applications can A283 steel and its equivalents be used interchangeably?
A283 and its equivalents are often used in the following sectors and applications:
| Application | A283 Steel | EN S275JR (Europe) | DIN ST44-2 (Germany) | JIS SS400 (Japan) | GB Q235B (China) |
|---|---|---|---|---|---|
| Building Construction | Used in structural frames and supports for general buildings | Common in frame structures, beams, and columns | Suitable for structural beams and columns | Frequently used in frame construction and reinforced structures | Ideal for frame work in low to medium-rise buildings |
| Bridges | Widely used in bridge supports and beams | Used in bridge construction where moderate strength is required | Common for bridge construction | Used for road and railway bridges | Ideal for bridge structures where moderate load-bearing is needed |
| Storage Tanks | Used in storage tanks for water, oil, and chemical storage | Suitable for chemical and oil storage tanks | Used in pressure vessels for storing chemicals | Common for storage tanks in the chemical industry | Ideal for water and gas storage tanks |
| Heavy Equipment | Used in the construction of machinery frames and support structures | Used in crane frames and heavy-duty machinery | Often used for machine frames and components | Common in machinery like excavators and cranes | Suitable for heavy-duty machinery parts |
| Railway Infrastructure | Used for railroad ties and support beams | Frequently used in railroad bridges and tracks | Used in railroad components | Common in railway bridge and track construction | Ideal for railway infrastructure components |
| Fabricated Steel Structures | Widely used in welded steel structures, frames, and supports | Used in general structural fabrication and steelworks | Often used in fabrication of medium-strength components | Common in welded steel structures and factory buildings | Used in steel frame buildings and industrial structures |
