Smooth Finish AISI 1020 Steel Products, Round Bar and Flat Sheet

• 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

Explore the robust SAE AISI 1020 Steel Properties, a staple in the industrial world. Delve into the specifics of C1020 Carbon Steel, renowned for its dependable Yield Strength and learn about its global Equivalents that make it a versatile choice for diverse applications.

Your go-to material, ASTM SAE AISI 1020 Steel, is renowned for its reliability and efficiency in various manufacturing processes, ensuring top-notch performance and durability.

AISI 1020 steel, often referred to as C1020 steel, especially in its cold worked forms such as cold rolled or cold drawn, stands out due to its commendable machinability and weldability. As one of the most widely utilized plain carbon steels, it can be hot rolled or cold drawn, though it typically comes in a turned and polished or cold drawn form. Its low carbon content makes it less susceptible to induction or flame hardening, ensuring stable performance.

AISI SAE 1020 Steel Properties & Specification: A comprehensive guide to understanding the intricate properties and specifications that define this essential industrial material.

Discover the depth of SAE AISI 1020 steel properties, encompassing chemical composition, as well as its physical and mechanical properties, all detailed in the data sheet below.

Chemical Composition: Uncover the essential elements and proportions that give SAE AISI 1020 steel its remarkable characteristics and performance.

	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: Dive into the inherent physical traits of SAE AISI 1020 steel that contribute to its application versatility and structural integrity.

Melting point: An impressive 1515 °C (2760 °F), ideal for processes requiring high thermal stability.
Density of 1020 steel: With a density of 7.87 g/cm³ (0.0361 lbs/in³), this material offers a perfect balance of weight and strength for various applications.

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: Essential data and insights to keep you informed about the material's performance under different conditions.-6/K = 10-6.K-1 = (µm/m)/°C

Mechanical Properties of SAE AISI 1020 Mild Steel: Explore the mechanical spectrum, encompassing yield strength, tensile strength, elongation, section reduction, and hardness across various conditions.

The data below illustrates that AISI SAE 1020 steel showcases impressive mechanical properties, detailing yield strength, tensile strength, elongation, section reduction, and hardness under a variety of conditions for optimized performance.
SAE AISI 1020 carbon steel shines with a Young's modulus (modulus of elasticity) of 186 GPa (27×106 psi), ensuring resilience and flexibility across demanding 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: Witness the ease and efficiency of machining with SAE AISI 1020 carbon steel, rated at 65 based on a benchmark machinability rating of 100% for the 1212 steel, making it a favored choice for manufacturing.

AISI SAE 1020 carbon steel delivers a machinability rating of 65, benchmarked against 1212 steel, indicating its efficiency and suitability for various machining operations.

SAE AISI 1020 Steel Heat Treatment: Master the art of heat treatment, including normalizing, annealing, austenitizing, and more, to optimize the steel's properties for specific applications.

Discover the array of heat treatment processes for SAE AISI 1020 mild steel, including normalizing, annealing, and austenitizing, each designed to enhance the material's durability and performance.

Normalizing of AISI 1020: Achieve optimal material properties with a typical normalizing temperature set at 915 °C (1675 °F), fostering consistency and quality.

The optimal normalizing temperature for SAE AISI 1020 mild steel is 915 °C (1675 °F), a critical process to enhance material uniformity and strength.

Annealing of AISI 1020: Tailor the material's characteristics with recommended temperatures and cooling cycles for full annealing of small carbon steel forgings, ensuring precision and performance.

For full annealing of small carbon steel forgings (size ≤ 3 in.), adhere to a temperature range of 855-900 °C (1575-1650 °F), with a cooling cycle from 855 °C (1575 °F) to 700 °C (1290 °F), ensuring a structured cooling speed of 28 °C/h (50 °F/h) and achieving a Brinell hardness of 111-149 HB.
Annealing temperature is set at 855-900 °C (1575-1650 °F), with a precise cooling cycle from 855 °C (1575 °F) to 700 °C (1290 °F), facilitated by a furnace cooling speed at 28 °C/h (50 °F/h), resulting in a Brinell hardness of 111-149 HB.

Reheating (Austenitizing): Fine-tune your approach with exact austenitizing temperatures for hardening SAE 1020 steel, setting the stage for superior surface characteristics and durability.

Reheating (austenitizing) for hardening SAE 1020 steel requires precise temperatures of 760-790 °C (1400-1450 °F). Carburizing is generally executed at 900 to 925 °C (1650 to 1700 °F) to enhance surface hardness and durability.

Case Hardening: Elevate surface strength with strategic carburizing techniques, ensuring SAE AISI 1020 steel meets rigorous application demands.

Surface hardening through carburization for 1020 carbon steel is performed at a temperature range of 970-955 °C, predominantly in a mixture of methane and carrier gas. Post-carburizing, hardening is typically achieved by direct quenching from the carburizing temperature into water or brine, solidifying the material's toughness.

Discover the quintessential heat treatment process for SAE 1020 steel case hardening—an essential step for enhancing durability and performance.

• The carbon temperature range for optimal treatment is 900-925 °C (1650-1700 °F), with the cooling method being either water or caustic solution, ensuring a robust finish.
• Reheat this versatile steel at a temperature of 790 °C (1450 °F), followed by cooling through water or a 3% sodium hydroxide solution for superior strength and resilience.
• Conduct carbonitriding at 790-900 °C (1450-1650 °F) and cool using oil to achieve a surface engineered for longevity and wear resistance.
• Temper at a low range of 120-205 °C (250-400 °F) to relieve stress and enhance resistance to cracking, though not mandatory, it's advisable for optimal toughness.

Typical Forging Temperature

Forge AISI 1020 mild steel at a temperature of 1290 °C (2350 °F), a standard ensuring the material’s workability and integrity.

AISI 1020 Carbon Steel Welding

Follow the recommended preheat and interpass temperatures for precise welding of AISI SAE C1020 steel, ensuring robust joint performance.
For thicknesses ≤50mm (2 in.), maintain a preheat and interpass temperature above -12 °C for low hydrogen or 38 °C for other conditions to ensure consistency.
For thickness ranging between 50< t ≤100mm, a preheat and interpass temperature of 93 °C for low hydrogen and 150 °C for other conditions are advised for optimal results.
Postweld heat treatment is optional, recommended at 590-675 °C (1100-1250 °F) to enhance the weld’s mechanical properties where required.

Application

ASTM AISI SAE 1020 steel is a versatile material used in a multitude of semi-finished forms like square, flat, and round bars, plates, and structural shapes. It's crucial for manufacturing components in trucks, cars, and agricultural machinery, including axles, mechanical parts, bolts, and gear systems. Additionally, it's commonly crafted into channels, angles, and beams for construction and industrial uses.

AISI SAE ASTM 1020 Steel Equivalent Material

SAE ASTM AISI 1020 carbon steel shares equivalency with several international standards, including European EN (such as Germany's DIN EN, British BSI, French NF), Japanese JIS, and Chinese GB standards, making it a globally recognized specification.

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