ASTM A36 Carbon Steel
Description
ASTM A36 is a low-carbon steel known for its excellent strength, formability, and weldability. It is commonly used in structural and construction applications due to its versatility and cost-effectiveness.
Applications
ASTM A36 steel is widely used in various industries for general structural purposes. It is commonly used in buildings, bridges, and other structural components where high strength and good formability are required.
Blacksmith Applications
ASTM A36 steel can be used by blacksmiths for various applications such as forging tools, decorative pieces, and sculptures. Its ability to be easily shaped and manipulated makes it suitable for artistic blacksmithing.
ASTM A36 Forging Temperature
Forging of ASTM A36 steel is typically carried out between 900°F - 1200°F (482°C - 649°C), followed by slow cooling in a furnace or insulating material.
ASTM A36 Heat Treatment
ASTM A36 Annealing Temperature
Annealing of ASTM A36 steel is performed at 1450°F - 1600°F (788°C - 871°C) for a sufficient amount of time, followed by slow cooling in the furnace to relieve internal stresses and improve machinability.
ASTM A36 Normalizing Temperature
Normalizing can be done at 1650°F - 1700°F (899°C - 927°C) for a suitable soak time, followed by air cooling. This process improves the mechanical properties and grain structure of the steel.
ASTM A36 Hardening Temperature
Hardening of ASTM A36 steel is not commonly performed as it is a mild steel. However, if necessary, it can be heated to 1500°F - 1600°F (816°C - 871°C) and then quenched in water or oil.
ASTM A36 Tempering Temperature
Tempering of ASTM A36 steel is generally not required due to its low carbon content. However, if desired, tempering can be done in the range of 300°F - 700°F (149°C - 371°C) to enhance toughness.
Machinability
ASTM A36 steel has a machinability rating of 72, indicating good machinability with appropriate cutting tools and techniques. It can be easily drilled, turned, and shaped.
Weldability
ASTM A36 steel has excellent weldability. It can be easily welded using any conventional welding method. Preheating and post-weld heat treatment are generally not required.
Chemical Analysis
The chemical make up of this steel.
Chemical | Content (%) |
---|---|
Carbon (C) | 0.25-0.29 |
Manganese (Mn) | 0.80-1.20 |
Phosphorus (P) | 0.040 |
Sulfur (S) | 0.050 |
Silicon (Si) | 0.15-0.40 |
Iron (Fe) | Balance |