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EN 1.4378 Stainless Steel vs. SAE-AISI 1548 Steel

Both EN 1.4378 stainless steel and SAE-AISI 1548 steel are iron alloys. They have 66% 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 SAE-AISI 1548 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 340
220 to 250
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 34
11 to 16
Fatigue Strength, MPa 340 to 550
270 to 430
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 510 to 680
440 to 500
Tensile Strength: Ultimate (UTS), MPa 760 to 1130
730 to 830
Tensile Strength: Yield (Proof), MPa 430 to 970
420 to 690

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
1.8
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.4
Embodied Energy, MJ/kg 39
19
Embodied Water, L/kg 150
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 220
79 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 2370
470 to 1280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 41
26 to 30
Strength to Weight: Bending, points 24 to 31
23 to 25
Thermal Shock Resistance, points 16 to 23
23 to 27

Alloy Composition

Carbon (C), % 0 to 0.080
0.44 to 0.52
Chromium (Cr), % 17 to 19
0
Iron (Fe), % 61.2 to 69
98 to 98.5
Manganese (Mn), % 11.5 to 14.5
1.1 to 1.4
Nickel (Ni), % 2.3 to 3.7
0
Nitrogen (N), % 0.2 to 0.4
0
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050