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EN 1.4378 Stainless Steel vs. EN 1.0644 Steel

Both EN 1.4378 stainless steel and EN 1.0644 steel are iron alloys. They have 67% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4378 stainless steel and the bottom bar is EN 1.0644 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 34
17
Fatigue Strength, MPa 340 to 550
380
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 510 to 680
420
Tensile Strength: Ultimate (UTS), MPa 760 to 1130
690
Tensile Strength: Yield (Proof), MPa 430 to 970
570

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 910
400
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
12

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.4
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.8
Embodied Energy, MJ/kg 39
24
Embodied Water, L/kg 150
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 220
110
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 2370
870
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 41
24
Strength to Weight: Bending, points 24 to 31
22
Thermal Shock Resistance, points 16 to 23
22

Alloy Composition

Aluminum (Al), % 0
0.010 to 0.050
Carbon (C), % 0 to 0.080
0.16 to 0.22
Chromium (Cr), % 17 to 19
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 61.2 to 69
96.1 to 98.4
Manganese (Mn), % 11.5 to 14.5
1.3 to 1.7
Molybdenum (Mo), % 0
0 to 0.080
Nickel (Ni), % 2.3 to 3.7
0 to 0.4
Niobium (Nb), % 0
0 to 0.070
Nitrogen (N), % 0.2 to 0.4
0 to 0.020
Phosphorus (P), % 0 to 0.060
0 to 0.030
Silicon (Si), % 0 to 1.0
0.1 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.035
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0.080 to 0.15