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SAE-AISI 1049 Steel vs. EN 1.4520 Stainless Steel

Both SAE-AISI 1049 steel and EN 1.4520 stainless steel are iron alloys. They have 82% 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 SAE-AISI 1049 steel and the bottom bar is EN 1.4520 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
180
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 17
26
Fatigue Strength, MPa 250 to 400
160
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 420 to 450
310
Tensile Strength: Ultimate (UTS), MPa 680 to 750
480
Tensile Strength: Yield (Proof), MPa 370 to 640
220

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
870
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
20
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
8.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.2
Embodied Energy, MJ/kg 18
32
Embodied Water, L/kg 46
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75 to 99
100
Resilience: Unit (Modulus of Resilience), kJ/m3 370 to 1090
120
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 27
17
Strength to Weight: Bending, points 22 to 23
18
Thermal Diffusivity, mm2/s 14
5.4
Thermal Shock Resistance, points 22 to 24
17

Alloy Composition

Carbon (C), % 0.46 to 0.53
0 to 0.025
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 98.5 to 98.9
80.1 to 83.9
Manganese (Mn), % 0.6 to 0.9
0 to 0.5
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.8