Minimum hardness of Mild steel is about 140 Vickers hardness.
it is 90
You heat your object until its hot red and then you cool it quickly in water
Non-uniform grey and black colour.
It is a popular type of steel because it is cheap and its material properties fit into many product applications.Mild steel has a relatively low tensile strength, but it is cheap and malleable and its surface hardness can be increased through carburizing.etc
IS 2062 standard does not specify any Hardness Limit for the material. As such, even the equivalent SA36 does not specify anything on Hardness. But this being a P No.1 material in properties, the commonly accepted Hardness limit is 200HB or 93 HRB. Again there can be variation based on specific application/project requirements.
it is 90
200 bhn max.
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heating mild steel to 200c
You heat your object until its hot red and then you cool it quickly in water
The hardness of steel is incomprehensible. It is very hard.
Non-uniform grey and black colour.
It is a popular type of steel because it is cheap and its material properties fit into many product applications.Mild steel has a relatively low tensile strength, but it is cheap and malleable and its surface hardness can be increased through carburizing.etc
mild steel is heavier
mild steel
Mild steel
Mild steel, not copper.