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414 Stainless Steel, tempered at 678°C
Categories: Metal; Ferrous Metal; Heat Resisting; Stainless Steel; T 400 Series Stainless Steel

Material Notes: 16 mm diameter bar, heated to 980°C for 30 minutes, oil quenched, tempered at 28°C above test temperature

Key Words: UNS S41400, AMS 5615, ASTM A276, ASTM A314, ASTM A473, ASTM A511, ASTM A580, FED QQ-S-763, SAE J405 (51414), martensitic
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Physical PropertiesMetricEnglishComments
Density 7.80 g/cc0.282 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 304
@Temperature 650 °C
304
@Temperature 1200 °F
Converted from Rockwell C Hardness
Hardness, Knoop 326
@Temperature 650 °C
326
@Temperature 1200 °F
Converted from Rockwell C Hardness
Hardness, Rockwell C 32
@Temperature 650 °C
32
@Temperature 1200 °F
before testing
Hardness, Vickers 316
@Temperature 650 °C
316
@Temperature 1200 °F
Converted from Rockwell C hardness.
Tensile Strength, Ultimate 275 MPa
@Temperature 650 °C
39900 psi
@Temperature 1200 °F
Tensile Strength, Yield 230 MPa
@Strain 0.2 %,
Temperature 650 °C
33400 psi
@Strain 0.2 %,
Temperature 1200 °F
Elongation at Break 33.5 %
@Temperature 650 °C
33.5 %
@Temperature 1200 °F
in 50 mm
Tensile Modulus 200 GPa29000 ksi
Izod Impact 30.0 - 80.0 J22.1 - 59.0 ft-lbhardened and tempered
 70.0 - 110 J51.6 - 81.1 ft-lbannealed
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000700 ohm-cm
@Temperature 20.0 °C
0.0000700 ohm-cm
@Temperature 68.0 °F
 
Thermal PropertiesMetricEnglishComments
CTE, linear  10.4 µm/m-°C
@Temperature 0.000 - 100 °C
5.78 µin/in-°F
@Temperature 32.0 - 212 °F
 11.0 µm/m-°C
@Temperature 0.000 - 315 °C
6.11 µin/in-°F
@Temperature 32.0 - 599 °F
 12.1 µm/m-°C
@Temperature 0.000 - 540 °C
6.72 µin/in-°F
@Temperature 32.0 - 1000 °F
 12.4 µm/m-°C
@Temperature 0.000 - 650 °C
6.89 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
 28.7 W/m-K
@Temperature 500 °C
199 BTU-in/hr-ft²-°F
@Temperature 932 °F
Melting Point 1425 - 1480 °C2597 - 2700 °F
Solidus 1425 °C2597 °F
Liquidus 1480 °C2700 °F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C <= 0.15 %<= 0.15 %
Chromium, Cr 12.5 %12.5 %
Iron, Fe 83 %83 %
Manganese, Mn <= 1.0 %<= 1.0 %
Nickel, Ni 1.88 %1.88 %
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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