A.I.S.I.-S.A.E. Tool Steel Type-None
GENERAL
CHARACTERISTICS
The well-balanced chemical
composition of PYROTEM readily lends itself to general hot work applications
such as closed press and forging machine dies. It is particularly
suitable for drop hammer applications requiring increased
compressive strength and higher resistance to the softening
effect of heat. PYROTEM was
designed for those applications where the standard die steel does
not provide the desired die life PYROTEM should not
be confused with 2714 as its performance is far superior to that
of the 2714 type material.
PYROTEM is also used for cold applications such as Shear
Blades.
ANNEALING
Heat to 1400/1425°F, hold at temperature
until heated through and cool slowly in furnace to 680°F
Note: If greater softness is desired, arrest cooling at
1240°F and 680°'F for four (4) hour periods.
PYROTEM and Pyroneal should always be annealed before
rehardening.
.
HARDENING
It is recommended that, in order to
minimize scaling or decarburization, the finish-machined surfaces
of dies and tools be protected against oxidizing atmospheres by
heating the steel in a controlled atmosphere furnace. If this is
not available, the steel may be heated in a neutral salt bath or
in a conventional furnace with the steel completely packed in
spent pitch coke, or similar material.
.
TYPICAL
APPLICATIONS
| Hammer Dies Press Dies Upsetter Dies Insert Dies |
Gripper Dies Header Dies Shear Blades Piercing Mandrels |
PYROTEM Die Blocks are furnished prehardened and tempered in commercially machinable ranges of hardness, ready to use after machining of the impression and offered in two standard hardness ranges:
PYROTEM A = Hardness-Rc 41/45
PYROTEM B = Hardness-Rc 36/40
Pyroneal can be furnished in the annealed condition for hardening by the customer to same hardness greater than the commercial machinable hardness ranges offered in PYROTEM.