USA 800.323.1233 CANADA 800.268.4977 HEAT TREATMENT 800.265.0862
www.schmolz-bickenbach.us www.schmolz-bickenbach.ca
THYROTHERM
®
2344 Magnum
Technical Data Sheet
Chemistry
Comparable Standard: Premium Grade AISI H13 ESR
Typical
C
Si
S
Cr
Mo
V
Analysis % 0.4 1.00 .003 max. 5.3 1.4 1.0
Description
• THYROTHERM® 2344 Magnum is an electro slag remelted
(ESR) hot work die steel, designed to meet all die casting in-
dustry specifications.
Characteristics
• Excellent toughness
•
Excellent resistance to thermal shock and fatigue
•
Excellent hardenability
•
Good high-temperature strength
•
Good polishability
Applications
•
High pressure die cast dies
•
Hot forging dies
•
Hot extrusion tooling
•
Forming dies
•
Plastic molds
•
Shot sleeves
Physical Properties
(Hardened and tempered to 46 HRC)
Mechanical Properties
Density:
0.281 lbs/in
3
(room temperature)
Toughness (CVN): 10 ft-lbs. minimum at 44-46 HRC
Tensile Properties: (room temperature)
Hard-
ness
HRC
Y.S
(0.2%)
ksi
T.S.
Ksi
EL
(%)
RA
(%)
52
48
44
220
190
170
260
230
200
12
13
14
35
38
40
Coefficient of
Thermal
Expansion
70
0
F – 200
0
F
6.0 X 10
-6
/
0
F
70
0
F – 400
0
F
6.6 X 10
-6
/
0
F
70
0
F – 750
0
F
7.0 X 10
-6
/
0
F
Thermal
Conductivity
70
0
F
177 Btu/in/ft
2
/
hr/
0
F
650
0
F
191 Btu/in/ft
2
/
hr/
0
F
1300
0
F
210 Btu/in/ft
2
/
hr/
0
F
Heat Treatment
Welding
Soft Annealing
Stress Relieving
Hardening (Refer to TTT diagram on page 2)
Tempering (See tempering diagram on page 2)
• Tempering hardness is approximate and based on two hours at
temperature
• In order to achieve faster quench rates, generous radii and ma-
chining stock should be left on during rough machining.
• Optimal heat treatment parameters should be followed to achieve
maximum potential die life.
• Please contact your Schmolz & Bickenbach heat treat representa-
tive for more detailed in
formation.
Temperature
Cooling
Hardness
1380
o
F - 1470
o
F
Furnace 20
o
F/hour to 1200
o
F
Then air cool.
230 HB
Max
Temperature
Cooling
Hardness
1200
o
F for 2
hours
Cool slowly to 930
o
F in air
230 HB
Max
Temperature
Cooling
Hardness
1850
o
F - 1880
o
F
Hold at
temperature for
30 minutes
Vacuum quench at 50
o
F/min.
to 1000
o
F then cool to below
150
o
F
54 HRC
Max
Quenched
Temperature
o
F
752
932
1022
1112
1202
1292
Hardness
HRC
54
56
54
50
42
34
THYROTHERM® 2344 Magnum can be welded in an annealed and
hardened condition if machining errors, design changes or minor
cracking have occurred. TIG (Tungsten Inert Gas) should preferably
be used.
Welding Guidelines
Welding Temperatures
Process
Tig/MMA
Current
D.C.
Amperage (A)
100-150
Electrode
Tungsten Thorium
Electrode Diameter
0.10 – 0.17
Protective Gas
Argon Helium
Flow (L/mm)
10
Filler Rod
AISI H-13
Preheat
Temp.
Maintained
Temperature
during
welding
Cool
Down to:
Stress Relieve
700
o
F to
800
o
F
Above 600
o
F 150
o
F 1050
o
F for 2 hours
Polishing
For highly cosmetic applications, the tool should be heat treated to the
highest hardness possible. Size of the tool will determine the maxi-
mum hardness. A-1 polish is achievable when proper procedures are
followed. A Schmolz & Bickenbach
representative should be con-
sulted when
determining the hardness.
