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Crucible Steel HALCOMB® 218 Tool Steel, AISI H11

Category Metal , Ferrous Metal , Tool Steel , Hot Work Steel
Manufacturer Crucible Steel
Trade Name HALCOMB®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Crucible Steel HALCOMB® 218 Tool Steel, AISI H11.pdf
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Material Notes:
Halcomb 218 is a general purpose hot work tool steel, combining good toughness with moderate high-temperature strength and heat check resistance. Because of its high toughness, it is particularly suited for applications where drastic coolants are used, or where gross cracking resistance is a concern.Information provided by Crucible Industries
Physical Properties Metric English Comments
Density 7.75 g/cc
0.280 lb/in³
Mechanical Properties Metric English Comments
Hardness, Brinell 192 - 235
192 - 235
Hardness, Rockwell C 26 - 28

@Tempering Temp. 649 °C
26 - 28

@Tempering Temp. 1200 °F
air cooled from 1850°F then tempered
34 - 36

@Tempering Temp. 621 °C
34 - 36

@Tempering Temp. 1150 °F
air cooled from 1850°F then tempered
40 - 43

@Tempering Temp. 593 °C
40 - 43

@Tempering Temp. 1100 °F
air cooled from 1850°F then tempered
46 - 48

@Tempering Temp. 566 °C
46 - 48

@Tempering Temp. 1050 °F
air cooled from 1850°F then tempered
52 - 54

@Tempering Temp. 538 °C
52 - 54

@Tempering Temp. 1000 °F
air cooled from 1850°F then tempered
Modulus of Elasticity 207 GPa
30000 ksi
Charpy Impact 17.6 J

@Tempering Temp. 538 °C
13.0 ft-lb

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

@Tempering Temp. 566 °C
18.0 ft-lb

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

@Tempering Temp. 593 °C
23.0 ft-lb

@Tempering Temp. 1100 °F
air cooled from 1850°F then tempered; V-notch
Thermal Properties Metric English Comments
CTE, linear 10.4 µm/m-°C

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

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

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

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

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

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

@Temperature 21.1 - 538 °C
7.10 µin/in-°F

@Temperature 70.0 - 1000 °F
13.1 µm/m-°C

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

@Temperature 70.0 - 1200 °F
Thermal Conductivity 2.16 W/m-K

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

@Temperature 200 °F
2.31 W/m-K

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

@Temperature 600 °F
Component Elements Properties Metric English Comments
Carbon, C 0.40 %
0.40 %
Chromium, Cr 5.0 %
5.0 %
Iron, Fe 91.6 %
91.6 %
as balance
Manganese, Mn 0.30 %
0.30 %
Molybdenum, Mo 1.3 %
1.3 %
Silicon, Si 0.90 %
0.90 %
Vanadium, V 0.50 %
0.50 %
Chemical Properties Metric English Comments
Critical Temperature 818.3 °C
1505 °F
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