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EN 1.7378 Steel vs. EN 1.4935 Stainless Steel

Both EN 1.7378 steel and EN 1.4935 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.7378 steel and the bottom bar is EN 1.4935 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17
16 to 18
Fatigue Strength, MPa 330
350 to 400
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 430
480 to 540
Tensile Strength: Ultimate (UTS), MPa 700
780 to 880
Tensile Strength: Yield (Proof), MPa 490
570 to 670

Thermal Properties

Latent Heat of Fusion, J/g 260
270
Maximum Temperature: Mechanical, °C 460
740
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
24
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
9.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.3
2.9
Embodied Energy, MJ/kg 33
42
Embodied Water, L/kg 61
100

Common Calculations

PREN (Pitting Resistance) 5.8
16
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
130
Resilience: Unit (Modulus of Resilience), kJ/m3 630
830 to 1160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25
28 to 31
Strength to Weight: Bending, points 22
24 to 26
Thermal Diffusivity, mm2/s 10
6.5
Thermal Shock Resistance, points 20
27 to 30

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0015 to 0.0070
0
Carbon (C), % 0.050 to 0.1
0.17 to 0.24
Chromium (Cr), % 2.2 to 2.6
11 to 12.5
Iron (Fe), % 94.6 to 96.1
83 to 86.7
Manganese (Mn), % 0.3 to 0.7
0.3 to 0.8
Molybdenum (Mo), % 0.9 to 1.1
0.8 to 1.2
Nickel (Ni), % 0
0.3 to 0.8
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0.15 to 0.45
0.1 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0.050 to 0.1
0
Tungsten (W), % 0
0.4 to 0.6
Vanadium (V), % 0.2 to 0.3
0.2 to 0.35