1020 steel is used for simple structural application such as cold headed bolts. It is often used in the case hardened condition.
Formability is good by all conventional methods as the ductility of 1020 is good.
Readily weldable by all of the standard methods.
1020 may be hardened by heating to 1500 - 1600 F and then water quenching. It should then be tempered. More often it is used as case hardened by carburizing . The cost of doing any heat treatment to such a low carbon steel often precludes doing so for the modest return in mechanical properties obtained.
Forge at 2300 down to 1800 F.
Hot work in the range of 900 to 1200 F.
A full anneal is done at 1600 to 1800 F followed by slow furnace cooling. This will give a tensile strength of about 65 ksi. A stress relief anneal may be done at 1000 F.
Specific Gravity: 7.86
Melting Point: 2760
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