14xx " Carbon Steel
23xx " Nickel Steel
33xx " Nickel Chromium Steel
Nickel Chromium Steel
40xx " Molybdenum Steel
41xx " Chromium, Molybdenum Steel
43xx " Nickel, Chrome, Molybdenum
46xx " Nickel, Molybdenum Steel
50xx " Chrome Steel 61xx "
Chrome, Vanadium Steel is considered to be an alloy when the maximum of the range given for the
content of alloying elements exceeds one or more of the following limits,
Manganese 1.65%, Silicon 0.60%, Copper 0.60%, or in which a definite range or a definite minimum
quantity of any of the following elements is specified or required within the limits of the recognized field
of constructional alloy steels,
Aluminum, boron, chromium up to 3.99%, cobalt, and so on.
Manganese, Contributes to strength and is major importance in increasing hardening ability.
Silicon increases the resiliency of steel for spring applications and raise the critical temperature for heat
treatment.
Nickel, Lowers the critical temperature of steel, and widens the temperature range for successful heat
treatment.
Nickel is used to promote resistance to corrosion. Chromium, Is used in steels to increase hardness,
improve harden ability, and is the essential element in stainless and heat resisting steels.
Molybdenum, In common with manganese and chromium, has a major effect on increasing
harden-ability, and a strong effect in increasing the high temperature tensile strength. Vanadium
Produces a fine grain.