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Crucible Steel 440B 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 440B Chromium Steel.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

Material Notes:

Crucible 440B Is a hardenable chromium steel which is cutlery grade having high attainable hardness and toughness. This grade is magnetic at all times. Information provided by Crucible Specialty Metals.

Physical Properties	Metric	English	Comments
Specific Gravity	7.75 g/cc	7.75 g/cc

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	220	220
Hardness, Rockwell C	49	49	tempering temperature-1000°F
	58	58	as quenched
	58	58	tempering temperature- 212°F
Tensile Strength, Ultimate	738 MPa	107000 psi
Tensile Strength, Yield	427 MPa @Strain 0.200 %	62000 psi @Strain 0.200 %
Elongation at Break	18 %	18 %	in 2"
Reduction of Area	35 %	35 %
Modulus of Elasticity	200 GPa	29000 ksi

Thermal Properties	Metric	English
CTE, linear	10.3 µm/m-°C @Temperature 26.7 - 93.3 °C	5.70 µin/in-°F @Temperature 80.0 - 200 °F
	10.8 µm/m-°C @Temperature 26.7 - 538 °C	6.00 µin/in-°F @Temperature 80.0 - 1000 °F
Specific Heat Capacity	0.460 J/g-°C @Temperature 0.000 - 100 °C	0.110 BTU/lb-°F @Temperature 32.0 - 212 °F
Thermal Conductivity	24.2 W/m-K @Temperature 93.3 °C	168 BTU-in/hr-ft²-°F @Temperature 200 °F
Melting Point	1370 - 1510 °C	2500 - 2750 °F
Solidus	1370 °C	2500 °F
Liquidus	1510 °C	2750 °F

Component Elements Properties	Metric	English	Comments
Carbon, C	0.75 - 0.95 %	0.75 - 0.95 %
Chromium, Cr	16 - 18 %	16 - 18 %
Iron, Fe	>= 78.23 %	>= 78.23 %	As Remainder
Manganese, Mn	<= 1.0 %	<= 1.0 %
Molybdenum, Mo	<= 0.75 %	<= 0.75 %
Phosphorous, P	<= 0.040 %	<= 0.040 %
Silicon, Si	<= 1.0 %	<= 1.0 %
Sulfur, S	<= 0.030 %	<= 0.030 %

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000600 ohm-cm @Temperature 23.0 °C	0.0000600 ohm-cm @Temperature 73.4 °F

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