Question

Difference between low alloy steel and high alloy steel

Answer 1

Low Alloy steel:

1)      Low alloy steel contains 1.5% to 5% total alloy content. Common alloying elements are vanadium, silicon, nickel, manganese, chromium and molybdenum. Low alloy steel is a combination of  4 or 5 of  these alloys. The amount these alloys may differ.

2)      They have high tensile and yield strengths.
3)      They are used in truck frames, railroad cars, heavy equipment, etc.

4)      They cannot withstand at high temperatures. Chromium or molybdenum are added to provide strength.

High Alloy steel:

1)      High alloy steel have more than 10% of alloy mixture. They are expensive.

2)      High level of carbon and manganese are added to provide austenitic nature to steel.

3)      Due to the high chromium content, high alloy steels can resist corrosion.

4)      Used for service in  extreme hot gases and liquids and at high temperatures (> 650°C)