SAE AISI 1020 Steel Properties, C1020 Carbon Steel Yield Strength, Equivalent
ASTM SAE AISI 1020 Steel
AISI 1020 steel is also known as C1020 steel in cold worked (cold rolled or cold drawn) condition. 1020 carbon steel is one of the most commonly used plain carbon steels, has good machinability and weldability. SAE AISI 1020 mild steel can be hot rolled or cold drawn, but it is usually in turned and polished or cold drawn conditions. Due to its low carbon content, it is resistant to induction hardening or flame hardening.
AISI SAE 1020 Steel Properties & Specification
The data sheet below lists SAE AISI 1020 steel properties including chemical composition, physical and mechanical properties, etc.
Chemical Composition
Physical Properties
Melting point: 1515 °C (2760 °F)
Density of 1020 steel: 7.87 g/cm3 (0.0361 lbs/in3)
Notes: 10
-6
/K = 10
-6
.K
-1
= (µm/m)/°C
Mechanical Properties of SAE AISI 1020 Mild Steel
The following data shows that AISI SAE 1020 steel mechanical properties include yield strength, tensile strength, elongation, section reduction, and hardness in various conditions.
SAE AISI 1020 carbon steel Young's modulus (modulus of elasticity) in the as-received condition: 186 GPa (27×10
6
psi).
Machinability
AISI SAE 1020 carbon steel machinability rating is 65 based on a machinability rating of 100% for 1212 steel.
SAE AISI 1020 Steel Heat Treatment
The heat treatment of SAE AISI 1020 mild steel including normalizing, annealing, austenitizing, etc.
Normalizing of AISI 1020
The typical normalizing temperature for SAE AISI 1020 mild steel is 915 °C (1675 °F).
Annealing of AISI 1020
Recommended temperature and cooling cycle for full annealing of small carbon steel forgings (size ≤ 3 in.):
Annealing temperature is 855-900 °C (1575-1650 °F), cooling cycle is from 855 °C (1575 °F) to 700 °C (1290 °F), furnace cooling speed at 28 °C/h (50 °F/h), Brinell hardness is 111-149 HB.
Reheating (Austenitizing)
Reheating (austenitizing) temperatures for hardening of SAE 1020 steel is 760-790 °C (1400-1450 °F). Carburizing is commonly carried out at 900 to 925 °C (1650 to 1700 °F).
Case Hardening
The surface hardening carburization temperature of 1020 carbon steel is 970-955 °C, and most of them are carried out in a mixed gas of methane and carrier gas. Hardening after carburizing is usually achieved by direct quenching from the carburizing temperature into water or brine.
Typical Heat Treatment for SAE 1020 Case Hardening: Discover the optimal heat treatment methods for SAE 1020 case hardening to ensure superior durability and performance.
- Carbon Temperature: Set between 900-925 °C (1650-1700 °F). Cooling Method: Utilize water or caustic for rapid cooling to achieve desired material characteristics.
- Reheat Temperature: Achieve an excellent reheat at 790 °C (1450 °F). Cooling Method: Employ water or a solution of 3% sodium hydroxide for effective cooling.
- Carbonitriding Temperature: Maintain temperature between 790-900 °C (1450-1650 °F). Cooling Method: Use oil for an efficient cooling process, enhancing the steel's surface characteristics.
- Temper Temperature: Keep between 120-205 °C (250-400 °F). Implement for stress relief and to improve resistance to cracking, though it is not mandatory.
Typical Forging Temperature: Unlock the potential of AISI 1020 mild steel through precision forging.
Typical Forging Temperature for AISI 1020 Mild Steel: Forge at an optimum temperature of 1290 °C (2350 °F) to achieve the best results.
AISI 1020 Carbon Steel Welding: Master the art of welding with these professional guidelines.
Recommended Preheat and Interpass Temperatures for AISI SAE C1020 Steel: Ensure high-quality welds with the right temperature settings.
For Thickness ≤50mm (2 in.): Maintain preheat and interpass temperature above -12 °C for low hydrogen applications; 38 °C for other applications.
For Thickness Between 50mm and 100mm: Follow recommended preheat and interpass temperatures of 93 °C for low hydrogen and 150 °C for other applications.
Postweld Heat Treatment: Optional, but beneficial. Temperature: 590-675 °C (1100-1250 °F) to enhance weld integrity.
Application: Explore the versatile uses of ASTM AISI SAE 1020 steel in various industries.
ASTM AISI SAE 1020 Steel Applications: This versatile steel is ideal for manufacturing truck, automotive, and agricultural equipment parts, including 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. It is also suited for creating steel channels, angles, I-beams, and H-beams.
AISI SAE ASTM 1020 Steel Equivalent Material: Know the equivalent standards of this reliable steel.
SAE ASTM AISI 1020 Carbon Steel: Equivalent to European EN (Germany DIN EN, British BSI, French NF), Japanese JIS, and Chinese GB standards, ensuring global compatibility and high performance.
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