AISI 1020 Steel Properties for Round Bar and Flat Plate Sheets

• Customization: Available
• Type: Carbon Steel Bar
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Model NO.: carbon steel
• Technique: Forged
• Shape: Bar
• Surface Treatment: Polished
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Die Steel Bar
• Transport Package: N/M
• Specification: 6-400mm
• Trademark: Smooth
• Origin: China
• HS Code: 7228400000
• Production Capacity: 5000ton/Month

Product Description

Dive into the world of materials with our detailed insights on SAE AISI 1020 Steel Properties, encompassing the robust C1020 Carbon Steel Yield Strength and its marked Equivalence.

Explore the versatile and highly regarded ASTM SAE AISI 1020 Steel, renowned for its performance and quality.

AISI 1020 steel, also recognized as C1020 steel in its cold-worked form, is a staple in the realm of plain carbon steels. It boasts excellent machinability and weldability, available in hot-rolled or cold-drawn forms, more commonly turned and polished or cold drawn. Its low carbon content ensures resistance to induction or flame hardening, making it a preferred choice for various applications.

Dive deep into the AISI SAE 1020 Steel Properties & Specification, understanding its comprehensive attributes and capabilities.

The comprehensive data sheet below enumerates the SAE AISI 1020 steel properties, highlighting its chemical composition, physical, and mechanical traits among others.

Chemical Composition

	AISI SAE 1020 Steel Chemical Composition (%)
AISI	C	Mn	P (≤)	S (≤)
1020	0.18-0.23	0.30-0.60	0.040	0.050

Physical Properties

Remarkably resilient, the AISI 1020 steel boasts a melting point of 1515 °C (2760 °F), suitable for high-temperature applications.
Density of 1020 steel: Remarkably stable at 7.87 g/cm3 (0.0361 lbs/in3), providing a solid structural integrity.

Material 1020 thermal conductivity
Value (W/m·K)	Temperature, °C (°F)
51.9	0 (32)
51.0	100 (212)
48.9	200 (392)

Specific Heat
Value (J/Kg·K)	Temperature, °C (°F)
486	50-100 (122-212)
519	150-200 (302-392)
599	350-400 (662-752)

Electrical Resistivity of 1020 Carbon Steel
Value (μΩ·m)	Temperature, °C (°F)
0.159	0 (32)
0.219	100 (212)
0.292	200 (392)

Coefficients of linear thermal expansion
Value (10-6/K)	Temperature, °C (°F)	Treatment or condition
11.7	20-100 (68-212)	Annealed
12.1	20-200 (68-392)
12.8	20-300 (68-572)
13.4	20-400 (68-752)
13.9	20-500 (68-932)
14.4	20-600 (68-1112)
14.8	20-700 (68-1292)

Notes: 10-6/K = 10-6.K-1 = (µm/m)/°C

Mechanical Properties of SAE AISI 1020 Mild Steel

Encompassing yield strength, tensile strength, elongation, section reduction, and hardness across different conditions, the mechanical properties of AISI SAE 1020 steel are well-rounded and dependable.
The Young's modulus (modulus of elasticity) for SAE AISI 1020 carbon steel, in its as-received condition, measures a robust 186 GPa (27×106 psi), ensuring durability and flexibility in various applications.

AISI 1020 steel mechanical properties in heat-treated or cold-worked conditions
AISI (UNS)	Tensile strength, MPa (ksi), ≥	Yield strength, MPa (ksi), ≥	Elongation in 50 mm, %, ≥	Reduction in area, %, ≥	Hardness (HB)	Processing, condition or treatment	Sample Size, mm (in.)
1020 (G10200)	380 (55)	205 (30)	25	50	111	Hot rolled	19-31.8 mm (0.75-1.25 in.)
	420 (61)	350 (51)	15	41	121	Cold drawn

Mechanical properties in the hot-rolled, normalized, and annealed condition
AISI	Tensile strength, MPa (ksi), ≥	Yield strength, MPa (ksi), ≥	Elongation in 50 mm, %, ≥	Reduction in area, %, ≥	Hardness (HB)	Processing, condition or treatment	Austenitizing temperature, °C (°F)	Quenching agent	Izod impact strength, J, (ft·lbf)	Sample Size
1020	448 (65)	331 (48)	36	59	143	As-rolled	-	Oil	87 (64)	12.8 mm (0.505 in.) machined from 25.4 mm (1 in.) rounds.
	441 (64)	346.5 (50.3)	35.8	68	131	Normalized	870 (1600)	Oil	118 (87)
	394.7 (57.3)	295 (43)	36.5	66	111	Annealed	870 (1600)	Oil	123 (91)

		Cyclic fatigue properties
UNS	Grade	Cyclic strength coefficient, MPa (ksi)	Fatigue strength coefficient, MPa (ksi)	Fatigue strength exponent	Fatigue ductility coefficient	Fatigue ductility exponent	Hardness (HB)
G10200	SAE 1020 steel	1205 (175)	850 (123)	-0.12	0.44	-0.51	108

Machinability

AISI SAE 1020 carbon steel offers an impressive machinability rating of 65, benchmarked against a perfect score of 100% for 1212 steel, showcasing its ease of use in manufacturing.

SAE AISI 1020 Steel Heat Treatment

The heat treatment process for SAE AISI 1020 mild steel includes essential techniques such as normalizing, annealing, and austenitizing, vital for enhancing its properties.

Normalizing of AISI 1020

Achieve optimal performance in SAE AISI 1020 mild steel with normalizing at a typical temperature of 915 °C (1675 °F).

Annealing of AISI 1020

For small carbon steel forgings (size ≤ 3 in.), follow the recommended full annealing temperature and cooling cycle for ultimate results.
Execute annealing within 855-900 °C (1575-1650 °F), cooling down from 855 °C (1575 °F) to 700 °C (1290 °F) with a furnace cooling speed of 28 °C/h (50 °F/h), achieving a Brinell hardness of 111-149 HB.

Reheating (Austenitizing)

For hardening SAE 1020 steel, reheating (austenitizing) within 760-790 °C (1400-1450 °F) is crucial. Carburizing typically occurs at 900 to 925 °C (1650 to 1700 °F), enhancing surface hardness.

Case Hardening

Dive into the superior capabilities of AISI 1020 carbon steel! The surface hardening carburization process occurs at an impressive temperature range of 970-955 °C. This is typically executed in a sophisticated mixture of methane and carrier gases. Post-carburizing, achieve a robust hardening effect by directly quenching from these elevated temperatures into water or brine. This ensures enhanced strength and durability.

Explore the quintessential heat treatment processes tailored for SAE 1020 steel, perfect for case hardening applications.

• Carbon temperature ranges majestically between 900-925 °C (1650-1700 °F), with cooling executed through water or caustic solutions, ensuring optimal hardness and resilience.
• Reheat this remarkable steel at a precise 790 °C (1450 °F). For cooling, choose between water or a 3% sodium hydroxide solution for superior results and structural integrity.
• Experience the art of carbonitriding within the temperature spectrum of 790-900 °C (1450-1650 °F), followed by oil cooling for an impeccable finish.
• Temper your steel masterpiece at 120-205 °C (250-400 °F). This step is essential for stress relief and significantly improves resistance to cracking, ensuring longevity and reliability, though not always compulsory.

Typical Forging Temperature: Unleash the full potential of your AISI 1020 steel with optimal forging practices.

Forge your AISI 1020 mild steel at an ideal temperature of 1290 °C (2350 °F), achieving exceptional malleability and strength.

AISI 1020 Carbon Steel Welding: Elevate your engineering projects with precise welding techniques.

For AISI SAE C1020 steel, preheat and interpass temperatures are critical, ensuring the supreme quality of your weld.
For steel thickness ≤50mm (2 in.), maintain a preheat and interpass temperature of above -12 °C for low hydrogen; shift to 38 °C for non-low hydrogen contexts.
For thickness in the range of 50
Postweld heat treatment is an optional enhancement, utilizing a temperature range of 590-675 °C (1100-1250 °F) for refined performance and structural cohesion.

Application: Discover the versatility of ASTM AISI SAE 1020 steel in various industries and applications.

ASTM AISI SAE 1020 steel is transformed into a variety of semi-finished products including square, flat, and round steel bars, as well as plates. These components are indispensable in manufacturing robust truck, automotive, and agricultural equipment parts such as axles, mechanical assemblies, motor and pump shafts, cold head bolts, ratchets, light gear systems, and more. Additional uses include creating structural elements like steel channels, angles, I-beams, and H-beams.

AISI SAE ASTM 1020 Steel Equivalent Material: Understand the global standards and equivalents.

SAE ASTM AISI 1020 carbon steel finds its equivalence with European EN (including Germany's DIN EN, British BSI, French NF), Japanese JIS, and Chinese GB standards, showcasing its global adaptability and reliability.

AISI SAE ASTM 1020 steel equivalent material
US				Germany		China		Japan		ISO
Standard	AISI (UNS)	Standard	Grade	Standard	Grade (Material Number)	Standard	Grade	Standard	Grade	Standard	Grade
AISI SAE; ASTM A29/A29M	1020 (G10200)	AMS	5032D; 5045E; 5046	DIN EN 10083-2; DIN EN 10250-2	C22E (1.1151); C22 (1.0402)	GB/T 699	20 steel	JIS G4051	S20C

Detailed Photos