Plain carbon angle steel

American Standard Carbon Steel

Materials and Chemical Compositions:

- ASTM A36: This is a widely used American standard carbon steel. It typically contains carbon (about 0.25%), manganese (0.60% - 1.00%), silicon (0.15% - 0.30%), phosphorus (up to 0.04%), and sulfur (up to 0.05%).

- ASTM A572: Available in different grades, such as A572 Grade 42, Grade 50, and Grade 60. The chemical composition varies by grade but generally includes carbon (ranging from 0.15% to 0.26%), manganese (0.60% - 1.35%), silicon (0.10% - 0.40%), phosphorus (up to 0.04%), and sulfur (up to 0.05%).

Properties:

- ASTM A36: Known for its good strength and weldability. It has a relatively moderate tensile strength and good ductility. It can be easily fabricated and welded, making it suitable for a wide range of structural applications.

- ASTM A572: Offers high strength and good formability. The different grades provide varying levels of strength, with higher grades having greater tensile strength and yield strength. It is also weldable and can be used in applications where strength is a critical factor.

Applications:

- ASTM A36: Commonly used in construction for structural components such as beams, columns, and plates. It is also used in manufacturing machinery and equipment frames.

- ASTM A572: Used in the construction of bridges, buildings, and other large-scale structures where high strength is required. It is also suitable for applications in the transportation and energy sectors.

European Standard Carbon Steel

Materials and Chemical Compositions:

- S235JR: A popular European standard carbon steel. It contains carbon (up to 0.22%), manganese (0.40% - 1.40%), silicon (up to 0.35%), phosphorus (up to 0.045%), and sulfur (up to 0.045%).

- S355JR: A higher strength European carbon steel. The chemical composition includes carbon (up to 0.24%), manganese (0.90% - 1.65%), silicon (up to 0.55%), phosphorus (up to 0.045%), and sulfur (up to 0.045%).

Properties:

- S235JR: Has moderate strength and good ductility. It is easy to form and weld, making it suitable for general structural applications.

- S355JR: Offers higher strength and toughness compared to S235JR. It has better resistance to fatigue and can withstand heavier loads.

Applications:

- S235JR: Used in building construction for light to medium-duty structural elements. It is also used in manufacturing small to medium-sized machinery parts.

- S355JR: Applied in the construction of large buildings, bridges, and offshore structures. It is also suitable for heavy machinery and equipment manufacturing.

German Standard Carbon Steel

Materials and Chemical Compositions:

- St37: A commonly used German carbon steel. It contains carbon (up to 0.17%), manganese (0.35% - 0.80%), silicon (up to 0.35%), phosphorus (up to 0.04%), and sulfur (up to 0.04%).

- St52: A higher strength German carbon steel. The chemical composition includes carbon (up to 0.22%), manganese (1.00% - 1.60%), silicon (up to 0.55%), phosphorus (up to 0.04%), and sulfur (up to 0.04%).

Properties:

- St37: Known for its good formability and weldability. It has moderate strength and ductility.

- St52: Offers higher strength and toughness. It has better resistance to impact and can be used in applications where strength and durability are important.

Applications:

- St37: Used in general engineering applications, such as manufacturing of small parts, brackets, and light structural elements.

- St52: Applied in the construction of heavy machinery, bridges, and pressure vessels. It is also suitable for applications in the automotive and aerospace industries.

In conclusion, carbon steels of American, European, and German standards offer a wide range of materials with different chemical compositions, properties, and applications. Whether it's for construction, manufacturing, or other industries, these carbon steels provide reliable and cost-effective solutions. Choose the right carbon steel for your specific needs and enjoy the benefits of high quality and performance.

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