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Crucible Steel 440C Chromium Steel

Category Metal , Ferrous Metal , Stainless Steel , T 400 Series Stainless Steel
Manufacturer Crucible Steel
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Crucible Steel 440C Chromium Steel.pdf
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Material Notes:
Crucible 440C is a hardenable chromium steel. It has one of the highest attainable hardnesses of the corrosion and heat resisting grades. This grade is magnetic at all times.Information provided by Crucible Industries
Physical Properties Metric English Comments
Density 7.64 g/cc
0.276 lb/in³
Mechanical Properties Metric English Comments
Hardness, Brinell 230
230
Hardness, Rockwell C 59
59
as quenched
51

@Tempering Temp. 538 °C
51

@Tempering Temp. 1000 °F
54

@Tempering Temp. 316 °C
54

@Tempering Temp. 600 °F
55

@Tempering Temp. 427 °C
55

@Tempering Temp. 800 °F
56

@Tempering Temp. 204 °C
56

@Tempering Temp. 400 °F
59

@Tempering Temp. 100 °C
59

@Tempering Temp. 212 °F
Tensile Strength, Ultimate 758 MPa
110000 psi
Tensile Strength, Yield 448 MPa
65000 psi
Elongation at Break 14 %
14 %
in 2"
Reduction of Area 25 %
25 %
Modulus of Elasticity 200 GPa
29000 ksi
Thermal Properties Metric English Comments
CTE, linear 10.3 µm/m-°C

@Temperature 0.000 - 100 °C
5.70 µin/in-°F

@Temperature 32.0 - 212 °F
10.8 µm/m-°C

@Temperature 0.000 - 316 °C
6.00 µin/in-°F

@Temperature 32.0 - 600 °F
Specific Heat Capacity 0.460 J/g-°C
0.110 BTU/lb-°F
Thermal Conductivity 2.02 W/m-K
14.0 BTU-in/hr-ft²-°F
Melting Point 1370 - 1480 °C
2500 - 2700 °F
Solidus 1370 °C
2500 °F
Liquidus 1480 °C
2700 °F
Component Elements Properties Metric English Comments
Carbon, C 0.95 - 1.2 %
0.95 - 1.2 %
Chromium, Cr 16 - 18 %
16 - 18 %
Iron, Fe >= 79.1 %
>= 79.1 %
as balance
Manganese, Mn <= 1.0 %
<= 1.0 %
Molybdenum, Mo <= 0.75 %
<= 0.75 %
Phosphorous, P <= 0.40 %
<= 0.40 %
Silicon, Si <= 1.0 %
<= 1.0 %
Sulfur, S <= 0.030 %
<= 0.030 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.0000599 ohm-cm
0.0000599 ohm-cm
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