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Crucible Steel CHRO-MOW® Tool Steel, AISI H12

Category Metal , Ferrous Metal , Tool Steel , Hot Work Steel
Manufacturer Crucible Steel
Trade Name CHRO-MOW®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Crucible Steel CHRO-MOW® Tool Steel, AISI H12.pdf
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Material Notes:
Chro-Mow is a general purpose hot work tool steel, combining good high-temperature strength with moderate toughness and heat check resistance. It is suited for applications where drastic coolants are used. It may be used up to tool temperatures of about 1000F, with brief exposures up to about 1100F.Information provided by Crucible Industries
Physical Properties Metric English Comments
Density 7.78 g/cc
0.281 lb/in³
Mechanical Properties Metric English Comments
Hardness, Brinell 192 - 235
192 - 235
Hardness, Rockwell C 30 - 32

@Tempering Temp. 621 °C
30 - 32

@Tempering Temp. 1150 °F
air cooled from 1850°F then tempered
40 - 42

@Tempering Temp. 593 °C
40 - 42

@Tempering Temp. 1100 °F
air cooled from 1850°F then tempered
44 - 46

@Tempering Temp. 566 °C
44 - 46

@Tempering Temp. 1050 °F
air cooled from 1850°F then tempered
51 - 53

@Tempering Temp. 538 °C
51 - 53

@Tempering Temp. 1000 °F
air cooled from 1850°F then tempered
Modulus of Elasticity 207 GPa
30000 ksi
Charpy Impact 10.8 J

@Tempering Temp. 538 °C
8.00 ft-lb

@Tempering Temp. 1000 °F
air cooled from 1850°F then tempered; V-notch
14.9 J

@Tempering Temp. 566 °C
11.0 ft-lb

@Tempering Temp. 1050 °F
air cooled from 1850°F then tempered; V-notch
17.6 J

@Tempering Temp. 593 °C
13.0 ft-lb

@Tempering Temp. 1100 °F
air cooled from 1850°F then tempered; V-notch
Thermal Properties Metric English Comments
CTE, linear 11.0 µm/m-°C

@Temperature 21.1 - 93.3 °C
6.10 µin/in-°F

@Temperature 70.0 - 200 °F
11.7 µm/m-°C

@Temperature 21.1 - 204 °C
6.50 µin/in-°F

@Temperature 70.0 - 400 °F
12.6 µm/m-°C

@Temperature 21.1 - 427 °C
7.00 µin/in-°F

@Temperature 70.0 - 800 °F
13.3 µm/m-°C

@Temperature 21.1 - 649 °C
7.40 µin/in-°F

@Temperature 70.0 - 1200 °F
Thermal Conductivity 2.02 W/m-K

@Temperature 93.3 °C
14.0 BTU-in/hr-ft²-°F

@Temperature 200 °F
2.16 W/m-K

@Temperature 316 °C
15.0 BTU-in/hr-ft²-°F

@Temperature 600 °F
Component Elements Properties Metric English Comments
Carbon, C 0.35 %
0.35 %
Chromium, Cr 5.0 %
5.0 %
Iron, Fe 90.45 %
90.45 %
as balance
Manganese, Mn 0.35 %
0.35 %
Molybdenum, Mo 1.3 %
1.3 %
Silicon, Si 1.0 %
1.0 %
Tungsten, W 1.2 %
1.2 %
Vanadium, V 0.35 %
0.35 %
Chemical Properties Metric English Comments
Critical Temperature 835.0 °C
1535 °F
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