AISI 1020 carbon steel is a low hardenability and low tensile carbon steel which has a nominal 0.22%C and 0.55%Mn. It has excellent weldability,good machinability ,and high ductility with Brinell hardness of 119 – 235 and tensile strength of 410-790 MPa. It is normally used in turned and polished or cold drawn condition. Due to its low carbon content, it is resistant to induction hardening or flame hardening. Due to lack of alloying elements, it will not respond to nitriding. However, carburization is possible in order to obtain case hardness more than Rc65 for smaller sections that reduces with an increase in section size. Core strength will remain as it has been supplied for all the sections. Alternatively, carbon nitriding can be performed, offering certain benefits over standard carburizing.

AISI 1020 carbon steel

AISI 1020 carbon steel SUPPLY FORM & SIZE &TOLERANCE

Form of Supply	Size(mm)	Length(mm)
Round bar	Φ6-Φ1000	3000-10000
Square bar	100 x 100-600×600	3000-6000
Flat bar/Blcoks	Thickness :120-800	2000-6000
Width:120-1500

Surface Finish	Black-Forged	Black-Rolled	Rough Turned	Grinding	Polished	Peeled	Cold Drawn
Tolerance	(0，+5mm)	(0，+1mm)	(0，+3mm)	Best h9	Best h11	Best H11	Best H11

AISI 1020 carbon steel CHEMICAL COMPOSITION & RELATED SPECIFICATIONS

Grade	C	Si	Mn	P	S
1020	0.17-0.23	≤ 0.4	0.30-0.60	≤ 0.04	≤ 0.05

Germany	UK	China	Japan
C22/1.0402	EN3/070M20	20#	S20C

1020 STEEL PHYSICAL PROPERTY

Modulus of elasticity [10^3x N/mm2]: 210
Density [g/cm^3]: 7.70
Thermal conductivity [W/m.K]: 51.9
Electric resistivity [Ohm mm^2/m]: 0.11
Specific heat capacity[J/g.K]: 0.46

AISI 1020 carbon steel

AISI 1020 carbon steel MECHANICAL PROPERTY

Diameter mm	Tensile Strength Mpa	Yield Strength Mpa	Elongation %	Reduction of area %	Condition
≤ 16	500 – 650	≥ 340	≥20	≥50	Quenched and tempered
>16 – 40	470 – 620	≥290	≥22	≥50
≤ 16	≥430	≥240	≥24		Normalised
>16 – 100	≥410	≥3210	≥25