 Daido's
Dream Series
DRM3 |
|
| Cold
Forging Die Steel |
 High
hard and tough high speed tool steel with excellent
hardenability
Features
Conventional grade MH88 has
been improved to DRM3. High hardness and tough DRM3 with
excellent hardenability is suitable for high precision cold
working tools.
- Applicable with the
maximum hardness 66HRC
- Fine carbides contribute
higher toughness and fatigue strength than those of MH51
equivalent to SKH51
- Greater hardenability
results in high performance even in large dies and gas
quenching in vacuum furnace.
- Double melting realizes
clean and homogeneous steel with less non-metallic
inclusions
Applications
- Cold forging dies and
punches
- Cold work roll, emboss
roll
- Tools quenched by gas in
vacuum furnace
Heat
treatment
| DRM3 |
Harden
1120C (2048F) |
Draws
(minimum of 2) |
Maximum
toughness |
620C
(1148F) HRC62 |
| Recommend
a minimum 6 barr quench |
Good
toughness & wear |
590C
(1094F) HRC64 |
|
|
|
Maximum
wear |
550C
(1022F) HRC66 |
Re-forging
Temperature |
Heat
treatment conditions (șC) |
Hardness |
| Annealing |
Quenching |
Tempering |
Annealed |
Hardening/Tempering |
| Requested
to inquire |
800~880
Slow cooling |
1100~1140
OQ, GC, Salt bath |
550~620
AC, ≥ twice |
≤235HB |
62~66HRC |
OQ: Oil quenching, GC: Gas
quenching in vacuum furnace, AC: Air cooling
Microstructure
(As annealed)
Finely distributed coarse carbides.
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|
US Contact:
International Mold Steel, Inc.
6796 Powerline Drive
Florence, KY 41042 USA
Tel: (859) 342-6000 or 1-800-625-6653
Fax: (859) 342-6006
Literature: info@imsteel.com
Sales
Desk:
salesdesk@imsteel.com
Web: www.imsteel.com
|
| www.daido.co.jp |
IMPORTANT
NOTE
Please be advised that Daido Steel shall not
be held responsible for damage caused by
misunderstanding or improper use of the
technical information contained in this
brochure.
The contents of this brochure may be subject
to change without notice. Please inquire of
related department for the latest
infromation.
No portion of this brochure may be
reproduced without express permission of
Daido steel. |
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