Durable AISI 1020 Steel Round Bar with Various Sizes Available

• 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

Uncover the marvels of SAE AISI 1020 Steel: Dive deep into the core properties of C1020 Carbon Steel, including its exceptional Yield Strength and Equivalents.

Introducing the Industry Standard: ASTM SAE AISI 1020 Steel - where resilience meets versatility.

AISI 1020 Steel, often celebrated as C1020 Steel, shines in its cold-worked form, be it cold rolled or drawn. This plain carbon steel is a staple across industries due to its excellent machinability and weldability. Typically offered in turned, polished, or cold-drawn conditions, its low carbon content makes it resilient against induction or flame hardening.

Dive into the Details: AISI SAE 1020 Steel Properties & Comprehensive Specification.

Explore the Comprehensive Data Sheet on SAE AISI 1020 Steel: Delve into chemical composition, along with its physical and mechanical properties.

Chemical Composition: Unlocking the Building Blocks of SAE AISI 1020 Steel.

	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: Discover the Intrinsic Qualities of SAE AISI 1020 Steel.

Melting Point Marvel: Witness the transformation at 1515 °C (2760 °F).
Density of 1020 Steel: Experience a robust 7.87 g/cm3 (0.0361 lbs/in3), showcasing its solid framework.

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: Unleash the Strength and Flexibility.

Explore the Mechanical Mastery of AISI SAE 1020 Steel: Yield and tensile strength, elongation, section reduction, and hardness across diverse conditions.
SAE AISI 1020 Carbon Steel Young's Modulus: A testament to elasticity at 186 GPa (27×106 psi), demonstrating its robust flexibility in the as-received condition.

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: Experience Seamless Engineering with AISI SAE 1020 Carbon Steel.

AISI SAE 1020 Carbon Steel boasts a commendable machinability rating of 65, benchmarked against the 100% rating of 1212 Steel.

SAE AISI 1020 Steel Heat Treatment: Elevate its Potential through Precision Techniques.

Master the Art of Heat Treatment for SAE AISI 1020: Embrace normalizing, annealing, austenitizing, and other transformative processes.

Normalizing of AISI 1020: Achieving Uniformity through Heat.

The Standard Normalizing Temperature for SAE AISI 1020 Mild Steel is a precise 915 °C (1675 °F), ensuring optimal uniformity.

Annealing of AISI 1020: Tailored Temperature and Cooling for Perfect Softness.

For small carbon steel forgings (size ≤ 3 in.), the annealing process requires specific temperatures and a regimented cooling cycle:
Annealing Temperature: 855-900 °C (1575-1650 °F). Cooling Cycle: From 855 °C (1575 °F) to 700 °C (1290 °F), with a furnace cooling rate of 28 °C/h (50 °F/h), resulting in a Brinell hardness of 111-149 HB.

Reheating (Austenitizing): Preparing for Hardening.

Reheating (Austenitizing) Temperatures for Hardening SAE 1020 Steel range from 760-790 °C (1400-1450 °F). Carburizing is typically conducted between 900 to 925 °C (1650 to 1700 °F).

Case Hardening: Surface Strength Reinvigorated.

The surface hardening carburization of 1020 Carbon Steel occurs at 970-955 °C, often in a methane and carrier gas mix. Post-carburizing hardening is usually achieved by direct quenching from the carburizing temperature into water or brine, fortifying the surface.

Immerse yourself in the details of the typical heat treatment process for SAE 1020 case hardening, a transformative procedure that enhances the material's durability and toughness.

• To achieve optimal results, maintain a carbon temperature of 900-925 °C (1650-1700 °F), followed by a precise cooling method using either water or caustic solutions.
• Reheating is crucial, set at an effective temperature of 790 °C (1450 °F), and employ a cooling strategy with water or a 3% sodium hydroxide solution to ensure the desired properties.
• Carbonitriding combines the best of two worlds at temperatures ranging from 790-900 °C (1450-1650 °F), using oil for cooling to achieve an enhanced hard surface.
• For stress relief and crack resistance, tempering at 120-205 °C (250-400 °F) is recommended, though it's not mandatory yet beneficial for specific applications.

Typical Forging Temperature

For AISI 1020 mild steel, the forging temperature reaches a peak of 1290 °C (2350 °F), ideal for shaping and enhancing the steel's formidable strength.

Mastering AISI 1020 Carbon Steel Welding

Optimize performance with recommended preheat and interpass temperatures tailored for AISI SAE C1020 steel.
For thicknesses less than or equal to 50mm (2 in.), maintain a preheat and interpass temperature above -12 °C for low hydrogen applications, and 38 °C for others.
When dealing with thickness between 50 and 100 mm, ensure preheat and interpass temperatures are 93 °C for low hydrogen and 150 °C for non-low hydrogen applications.
Postweld heat treatment, an optional yet beneficial step, involves maintaining temperatures between 590-675 °C (1100-1250 °F) to enhance weld integrity.

Applications

ASTM AISI SAE 1020 steel supports a variety of semi-finished products like square, flat, and round steel bars, and steel plates, tailored for the construction of trucks, automotive, and agricultural equipment parts. Common applications include axles, mechanical parts, bolts, motor shafts, pump shafts, ratchets, light gears, gear drives, worm gears, spindles, seat brackets, crane-cable drums, motor-brake wheels, and more. It's also crafted into structural elements like steel channels, angles, I-beams, and H-beams.

AISI SAE ASTM 1020 Steel Equivalent Material

Discover the equivalence of SAE ASTM AISI 1020 carbon steel with major international standards, such as the European EN (Germany DIN EN, British BSI, French NF), Japanese JIS, and Chinese GB.

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

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