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SAE 1020 STEEL SHEET

SAE 1020 STEEL SHEET

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Carbon steel is a category of steel, which contains 0.12 to 2% carbon. This grade of steel gains hardness and strength with heat treatment when the percentage of carbon increases but the ductility is reduced.

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SAE 1020 carbon steel is a commonly used common carbon steel. It has a good combination of strength and ductility and can be hardened or case hardened.

The following sections have details on SAE 1020 carbon steel.

CHEMICAL COMPOSITION SAE 1020

element Content (%)
Manganese, Mn 0.30-0.60
carbon, C 0.18-0.23
sulfur, S 0.05 (max)
Phosphorus, P 0.04 (max)
iron, iron balance

 

PHYSICAL PROPERTIES SAE 1020

properties Metric voltage
density 7.87 g / cm 3 0.284 lb/in 3
 

 

MECHANICAL PROPERTIES SAE 1020

properties

Metric

voltage
tensile strength 420 MPa 60900 psi
yield strength 350 MPa 50800 psi
modulus of elasticity GPa 205 29700 ksi
Shear modulus (typical for steel) 80 GPa 11600 ksi
Poisson's coefficient 0.29 0.29
Stretching in the interval (in 50 mm) 15% 15%
hardness 121 121
     
     
     

SAE 1020 DESIGNATIONS

Other designations that are equivalent to SAE 1020 carbon steel include the following specifications.

AMS 5054 AMS 5045C SAE J1397 ASTM A513 (MT 1020) ASTM A512 (1020, MT 1020)
AMS 5045 AMS 5032B SAE J412    
AFNOR CC 20 AMS 5032 SAE J403 MIL S-11310 (CS 1020) ASTM A29
SS 1450 AMS 5046 SAE J414 ASTM A830 MIL S-7952
DIN 1.0402 BS 070 M 20 ASTM A635 ASTM A787 (MT 1020) MIL S-16788
UNI C 20 BS 040 TO 20 ASTM A827 ASTM A794 ASTM A108
MIL T-3520 ASTM A510 ASTM A519 ASTM A544 ASTM A575
ASTM A576 ASTM A659      
   

 

MACHINING

The machinability of SAE 1020 carbon steel is good, 65% compared to SAE 1112 carbon steel.

FORMABILITY

It is easy to work SAE 1020 carbon steel using all conventional methods as this alloy is highly ductile.

WELDING

SAE 1020 carbon steel can be easily welded using all traditional methods.

HEAT TREATMENT

SAE 1020 carbon steel can be hardened by heating to 815-871°C (1500 - 1600°F), which must be followed by water cooling. So it must be tempered.

FORGING

SAE 1020 carbon steel must be forged at 1260°C (2300°F) to 982°C (1800°F).

HOT WORK

SAE 1020 carbon steel can be hot worked in the range of 482 to 649 °C (900 to 1200 °F).

COLD WORK

Cold working SAE 1020 carbon steel is possible using all conventional methods. In case of prolonged cold work, strain relief treatment is recommended.

ANNELING

Full annealing of this alloy can be achieved between 871-982 °C (1600 to 1800 °F) followed by slow furnace cooling. This will provide the alloy with a tensile strength of about 65 ksi. A strain relief ring can be performed if necessary at 538°C (1000°F).

TEMPERA

Tempering should be followed by heat treatment and quenching at 315 to 538 °C (600 to 1000 °F) based on the required strength level. For example, quenching at 538 °C (1000 °F) gives the alloy a tensile strength of 90 ksi.

HARDNESS

SAE 1020 carbon steel can be hardened by cold working and by heat treatment, quenching and tempering.

 

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