420 Stainless Steel, hardened and tempered bar

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420 Stainless Steel, hardened and tempered bar
Categories:	Metal; Ferrous Metal; Heat Resisting; Stainless Steel; T 400 Series Stainless Steel
Key Words:	UNS S42000, AMS 5506, AMS 5621, ASTM A276, ASTM A314, ASTM A473, ASTM A580, FED QQ-S-763, FED QQ-S-766, FED QQ-W-423, MIL SPEC MIL-S-862, SAE J405 (51420), B.S. 420 S 37, B.S. CDS-18 (U.K), martensitic, DIN 1.4021, AFNOR Z 20 C 13 (Fr), UNI X 20 Cr 13, JIS SUS 420 J1, SS14 2303 (Sweden), ISO 683/13 4
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Physical Properties	Metric	English	Comments

Density	7.80 g/cc	0.282 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	<= 205	<= 205
Hardness, Vickers	373	373	Converted from Brinell
Tensile Strength, Ultimate	760 - 1702 MPa	110000 - 246900 psi
Tensile Strength, Yield	515 - 1380 MPa @Strain 0.2 %	74700 - 200000 psi @Strain 0.2 %
Elongation at Break	7.0 - 22 %	7.0 - 22 %	in 50 mm
Modulus of Elasticity	200 GPa	29000 ksi
Poissons Ratio	0.24	0.24	Calculated
Shear Modulus	80.7 GPa	11700 ksi
Charpy Impact	14.0 J @Temperature 23.0 °C	10.3 ft-lb @Temperature 73.4 °F
	100 J @Temperature 23.0 °C	73.8 ft-lb @Temperature 73.4 °F

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000550 ohm-cm @Temperature 20.0 °C	0.0000550 ohm-cm @Temperature 68.0 °F

Thermal Properties	Metric	English	Comments
CTE, linear	10.3 µm/m-°C @Temperature 0.000 - 100 °C	5.72 µin/in-°F @Temperature 32.0 - 212 °F
	10.8 µm/m-°C @Temperature 0.000 - 315 °C	6.00 µin/in-°F @Temperature 32.0 - 599 °F
	11.7 µm/m-°C @Temperature 0.000 - 540 °C	6.50 µin/in-°F @Temperature 32.0 - 1000 °F
	12.2 µm/m-°C @Temperature 0.000 - 650 °C	6.78 µin/in-°F @Temperature 32.0 - 1200 °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	24.9 W/m-K @Temperature 100 °C	173 BTU-in/hr-ft²-°F @Temperature 212 °F
Melting Point	1455 - 1510 °C	2651 - 2750 °F
Solidus	1455 °C	2651 °F
Liquidus	1510 °C	2750 °F
Maximum Service Temperature, Air	620 °C	1150 °F	Continuous Service
	735 °C	1360 °F	Intermittent

Component Elements Properties	Metric	English	Comments
Carbon, C	>= 0.15 %	>= 0.15 %
Chromium, Cr	13 %	13 %
Iron, Fe	85 %	85 %
Manganese, Mn	<= 1.0 %	<= 1.0 %
Phosphorus, P	<= 0.040 %	<= 0.040 %
Silicon, Si	<= 1.0 %	<= 1.0 %
Sulfur, S	<= 0.030 %	<= 0.030 %

References for this datasheet.

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MQ420O / 13077

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