Kaji eksperimen pengaruh hardening dan tempering terhadap kekuatan tarik dan kekerasan pada baja karbon sedang

This study aims to determine the effect of hardening and tempering on tensile strength (ASTM E 8) hardness (Rockwell) applied medium carbon steel. The heat treatment process is heated by a furnace at temperature 900 °C 920 then held for 30 minutes cooled quickly further processed Tempering with each being tempered 500 slowly. results obtained are in variation °C, value increases from raw material 5.7 HRC 7.52 has increased again 8.08 HRC. 900/ above 7.24 HRC, down 920/500 6.4 For testing against utimate stress, 516,095 MPa, °C/451,065 MPa °C/389,625 MPa. yield 477.4165 900°C/270.8395 920°C/256.4555 modulus 347.53 GPa, 900°C/3452605 , °C/338.206 elongation 7.871%, °C/11.392%, °C/16.448 %. stress 900/500 417,5635 372.416 900/500°C 304.1745 269.818 /500°C 353.1525 366.5695 11.392%, ° C 13.7665%.