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EN 1.4521 Stainless Steel vs. SAE-AISI 1547 Steel

Both EN 1.4521 stainless steel and SAE-AISI 1547 steel are iron alloys. They have 78% of their average alloy composition in common. There are 30 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 1.4521 stainless steel and the bottom bar is SAE-AISI 1547 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
11 to 17
Fatigue Strength, MPa 230
270 to 430
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 330
440 to 480
Tensile Strength: Ultimate (UTS), MPa 520
740 to 800
Tensile Strength: Yield (Proof), MPa 340
400 to 690

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 930
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
51
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.9
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.4
Embodied Energy, MJ/kg 39
19
Embodied Water, L/kg 130
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
80 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 280
430 to 1280
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
26 to 28
Strength to Weight: Bending, points 19
23 to 24
Thermal Diffusivity, mm2/s 6.2
14
Thermal Shock Resistance, points 18
23 to 25

Alloy Composition

Carbon (C), % 0 to 0.025
0.43 to 0.51
Chromium (Cr), % 17 to 20
0
Iron (Fe), % 74.6 to 81.1
97.8 to 98.2
Manganese (Mn), % 0 to 1.0
1.4 to 1.7
Molybdenum (Mo), % 1.8 to 2.5
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0 to 0.050
Titanium (Ti), % 0.15 to 0.8
0