SAE AISI 1020 Steel Properties: Discover the robust characteristics of C1020 Carbon Steel, including its impressive yield strength and equivalent materials.
ASTM SAE AISI 1020 Steel: Premium Quality Carbon Steel for Diverse Industrial Applications.
AISI 1020 steel, also known as C1020 steel, is a versatile plain carbon steel renowned for its excellent machinability and weldability. Typically available in cold worked conditions such as cold rolled or cold drawn, it can also be hot rolled. This steel is often presented in turned and polished or cold drawn states. Its low carbon content restricts it from induction or flame hardening, making it ideal for various non-hardened applications.
AISI SAE 1020 Steel Properties & Specifications: Comprehensive Insights for Industry Professionals.
The following data sheet provides an in-depth look at SAE AISI 1020 steel, detailing its chemical composition, physical and mechanical properties, and more.
Chemical Composition: Detailed Breakdown of Elements in SAE AISI 1020 Steel.
Physical Properties: Essential Physical Characteristics of SAE AISI 1020 Steel.
Melting point: 1515°C (2760°F): This high melting point makes SAE AISI 1020 steel suitable for various high-temperature applications.
Density of 1020 steel: 7.87 g/cm³ (0.0361 lbs/in³): A dense and robust material suitable for a wide range of industrial applications.
Notes: 10
-6
/K = 10
-6
.K
-1
= (µm/m)/°C
Mechanical Properties of SAE AISI 1020 Mild Steel: An essential overview of its mechanical characteristics for engineering applications.
The data below highlights the mechanical properties of AISI SAE 1020 steel, including its yield strength, tensile strength, elongation, section reduction, and hardness across various conditions.
SAE AISI 1020 carbon steel Young's modulus: This modulus of elasticity, measured at 186 GPa (27×10
6
psi), underscores the steel's rigidity and structural stability.
Machinability: Optimal Performance in Industrial Applications
AISI SAE 1020 carbon steel boasts a machinability rating of 65, with 1212 steel rated at 100% for reference, making it suitable for efficient and precise machining.
SAE AISI 1020 Steel Heat Treatment: Enhance the properties of SAE AISI 1020 mild steel through various heat treatment processes, including normalizing, annealing, and austenitizing.
The heat treatment processes for SAE AISI 1020 steel include normalizing, annealing, and austenitizing, each enhancing the material's characteristics for specific applications.
Normalizing of AISI 1020: Achieve Optimal Material Properties
The standard normalizing temperature for SAE AISI 1020 mild steel is 915°C (1675°F), providing uniformity and enhanced mechanical properties.
Annealing of AISI 1020: Precise Temperature and Cooling Cycles
The recommended temperature and cooling cycle for full annealing of small carbon steel forgings (size ≤ 3 in.):
Annealing temperature ranges from 855-900°C (1575-1650°F). Cooling from 855°C (1575°F) to 700°C (1290°F) is conducted at a furnace cooling speed of 28°C/h (50°F/h), resulting in a Brinell hardness of 111-149 HB.
Reheating (Austenitizing): Crucial Temperatures for Hardening
Reheating (austenitizing) temperatures for SAE 1020 steel hardening range from 760-790°C (1400-1450°F). Common carburizing is performed at 900-925°C (1650-1700°F).
Case Hardening: Enhance Surface Hardness for Durability
The surface hardening carburization temperature for 1020 carbon steel ranges from 970 to 955 °C. This process is commonly conducted in a mixed gas atmosphere of methane and carrier gas. Hardening post-carburization is typically accomplished by direct quenching from the carburizing temperature into either water or brine for optimal results.
Typical Heat Treatment for SAE 1020 Case Hardening
- Carbonizing Temperature: 900-925 °C (1650-1700 °F). Cooling Method: Water or caustic solution;
- Reheating Temperature: 790 °C (1450 °F). Cooling Method: Water or 3% sodium hydroxide solution;
- Carbonitriding Temperature: 790-900 °C (1450-1650 °F). Cooling Method: Oil;
- Tempering Temperature: 120-205 °C (250-400 °F). This step is optional and aims at stress relief and enhancing resistance to cracking.
Typical Forging Temperature
The typical forging temperature for AISI 1020 mild steel is 1290 °C (2350 °F), ensuring optimal forging quality.
AISI 1020 Carbon Steel Welding
Recommended Preheat and Interpass Temperatures for AISI SAE C1020 Steel:
For thicknesses ≤50mm (2 in.), the recommended preheat and interpass temperature is above -12 °C for low hydrogen applications and 38 °C for other applications.
For thicknesses 50< t ≤100, the recommended preheat and interpass temperature is 93 °C for low hydrogen applications, and 150 °C for other applications.
Post-weld Heat Treatment is optional. The recommended temperature range is 590-675 °C (1100-1250 °F).
Application
ASTM AISI SAE 1020 steel comes in various semi-finished forms such as square steel bars, flat steel bars, round steel bars, and steel plates. These are ideal for manufacturing truck parts, automotive components, agricultural equipment parts like axles, mechanical parts, cold head bolts, motor shafts, pump shafts, ratchets, light gears, gear drives, worm gears, spindles, seat brackets, crane-cable drums, motor-brake wheels, and more. It is also frequently used in the production of steel channels, steel angles, I-beams, and H-beams.
AISI SAE ASTM 1020 Steel Equivalent Material
SAE ASTM AISI 1020 carbon steel is equivalent to European standards (Germany DIN EN, British BSI, French NF), Japanese JIS, and Chinese GB standards, ensuring global compatibility and versatility.
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