MO40 steel rebar is in the group of heat treatable steels (high quality alloys). In some cases, about 0.2% nickel is used to remove the brittleness of chromium in MO40 steel rebars.

Melting and preparation of this alloy takes place in electric arc furnaces as well as in induction furnaces. A noteworthy point in MO40 steel smelting is its complete slag, which is why MO40 steels are known for their high quality alloys.

MO40 steel has high thermal conductivity, ductility and high durability

Steel 4140

4140 steel is another standard of MO40 steel that is produced and supplied by the United States.

Naming of MO40 steel rebar according to different standards:

IASC MARK Isfahan alloy steel brand	7225 IASC
DIN Gemany	1,7225
SARSTAHL ROCHLING   Zarshtal (Roshliting)	MO40
B.S. Britain	708M40
SWEDEN Sweeden	42CrMo4
A.I.S.I.   SAE/ASTM  USA	4140 SAE

Applications

MO40 steel in various industries such as cement industry rollers, steel industry rollers, connecting rods, gear wheels, Darfpinions, car axles, steering gears, rigid screws, connecting rods, armor of bullet mills raw materials, diaphragm mill Raw materials, klinger mill hammers, pressure vessels and aircraft structures are used.