The main purpose of the 8407 mold steel

Main purpose

8407 is mainly used for all kinds of metal casting molds, extrusion dies, high quality requirements of plastic molds, such as: the engine die, automotive car

Lights such as mold.
8407 mold steel chemical composition (chemical composition):
8407 die steel the carbon (C) 0.38, chromium (Cr) 5.3, the manganese (Mn) of 0.4, the molybdenum (MO) 1.3, silicon (Si) 1.0, vanadium (V) 0.9 8407 Heat Treatment

Of quenching its grinding technology
Ball annealing
Steel mold in a protected environment heated to 850 ℃, 10 ℃ / h soaking furnace cooled to 600 ° C, and then

Cooling in air.
To stress tempering
Steel mold the rough shall die steel is heated to 650 ° C, 2 hours soaking in the furnace cooling to 550 ℃, and then

Cooling in air.

Advantage

· Excellent heat shock and anti-cracking
· High temperature strength.
· Irrespective of their sizes, high toughness and ductility and isotropic
· Workability and excellent polishing properties
· Excellent hardenability
· Good heat dimensional stability