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EN 1.7378 Steel vs. AISI 414 Stainless Steel

Both EN 1.7378 steel and AISI 414 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.7378 steel and the bottom bar is AISI 414 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
17
Fatigue Strength, MPa 330
430 to 480
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 430
550 to 590
Tensile Strength: Ultimate (UTS), MPa 700
900 to 960
Tensile Strength: Yield (Proof), MPa 490
700 to 790

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Maximum Temperature: Mechanical, °C 460
750
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
8.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.3
2.1
Embodied Energy, MJ/kg 33
29
Embodied Water, L/kg 61
100

Common Calculations

PREN (Pitting Resistance) 5.8
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 630
1260 to 1590
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
32 to 34
Strength to Weight: Bending, points 22
27 to 28
Thermal Diffusivity, mm2/s 10
6.7
Thermal Shock Resistance, points 20
33 to 35

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0015 to 0.0070
0
Carbon (C), % 0.050 to 0.1
0 to 0.15
Chromium (Cr), % 2.2 to 2.6
11.5 to 13.5
Iron (Fe), % 94.6 to 96.1
81.8 to 87.3
Manganese (Mn), % 0.3 to 0.7
0 to 1.0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0
1.3 to 2.5
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0.15 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.050 to 0.1
0
Vanadium (V), % 0.2 to 0.3
0