Available Shapes
070M20 Carbon Steel
070M20 Engineering steel
070M20 is general engineering steel, suitable in applications where heavy stresses and heat treatment are not involved, such as welded and riveted structures, forgings, machined parts, and hot pressing. We Stock this in a range of sizes and shapes.
It is a bright drawn, or turned, mild steel with good machinability. Ideal for use in a variety of general engineering applications. This Steel can be case hardened and is normally supplied in the as drawn / as a turned condition. 070M20 steel will withstand a moderate amount of cold deformation and only offers low strength but good machinability. The material has good weldability characteristics however it has poor hardenability.
Applications
Analysis
Annealing
Hardening
Heat Treatment
Applications
070M20 steel is widely used for a variety of applications in the used in the automotive and engineering industries for toolholders and other such components. Typical applications such as valve bodies, pumps and fittings, Shaft, the high load of wheel, bolts, double-headed bolts, gears, etc
Analysis
Carbon | 0.16-0.24% | Phosphorous | 0.05% max |
Manganese | 0.50-0.90% | Sulphur | 0.05% max |
Silicon | 0.10-0.40% |
Annealing
070M20 is commonly supplied bright drawn or as rolled condition. If annealing is required heat to 880-910°C then furnace cool.
Hardening
As it is a low carbon unalloyed steel grade 070M20 is not ideally suited for heat treatment (080M40 or 080M46 may be a better option). If hardening is required heat to a temperature of 880-910°C. Quench in water and then temper.
Heat Treatment
Heat treatment temperatures, including rate of heating, cooling and soaking times will vary due to factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult your heat treatment provider for full guidance on heat treatment of 070M20 carbon steel.