410 Cb Martensitic Stainless Steel (UNS S41040)

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410 Cb Martensitic Stainless Steel (UNS S41040)
Categories:	Metal; Ferrous Metal; Martensitic; Stainless Steel; T 400 Series Stainless Steel
Material Notes:	Fe-11.9Cr-0.24Si-0.19Mn-0.15Nb-0.12C-0.027Mo-0.021P-0.04S Typically used for molds, bearings, turbine components, aircraft structural parts, medical instruments, and cutlery
Key Words:	UNS S41040
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Physical Properties	Metric	English	Comments

Density	7.73 g/cc	0.279 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell B	>= 89	>= 89
Hardness, Rockwell C	<= 32	<= 32
Tensile Strength, Ultimate	655 - 1248 MPa	95000 - 181000 psi
Tensile Strength, Yield	503 - 1034 MPa @Strain 0.2 %	73000 - 150000 psi @Strain 0.2 %
Elongation at Break	15 - 26 %	15 - 26 %
Modulus of Elasticity	204 - 215 GPa	29600 - 31200 ksi
Bulk Modulus	166 GPa	24100 ksi
Poissons Ratio	0.283	0.283
Shear Modulus	83.9 GPa	12200 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000570 ohm-cm	0.0000570 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	>= 9.90 µm/m-°C	>= 5.50 µin/in-°F
Specific Heat Capacity	0.460 J/g-°C	0.110 BTU/lb-°F
Thermal Conductivity	24.8 W/m-K	172 BTU-in/hr-ft²-°F

Component Elements Properties	Metric	English	Comments
Carbon, C	0.12 %	0.12 %
Chromium, Cr	11.9 %	11.9 %
Iron, Fe	87.312 %	87.312 %	As Balance
Manganese, Mn	0.19 %	0.19 %
Molybdenum, Mo	0.027 %	0.027 %
Niobium, Nb (Columbium, Cb)	0.15 %	0.15 %
Phosphorus, P	0.021 %	0.021 %
Silicon, Si	0.24 %	0.24 %
Sulfur, S	0.040 %	0.040 %

References for this datasheet.

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