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SAE-AISI 1021 Steel vs. EN 1.4541 Stainless Steel

Both SAE-AISI 1021 steel and EN 1.4541 stainless steel are iron alloys. They have 70% 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 1021 steel and the bottom bar is EN 1.4541 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 150
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 27
14 to 40
Fatigue Strength, MPa 190 to 300
190 to 330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 310 to 320
410 to 550
Tensile Strength: Ultimate (UTS), MPa 480 to 530
600 to 900
Tensile Strength: Yield (Proof), MPa 260 to 450
220 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
940
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
16
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.2
Embodied Energy, MJ/kg 18
46
Embodied Water, L/kg 46
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 110
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 530
120 to 830
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 19
21 to 32
Strength to Weight: Bending, points 17 to 18
20 to 27
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 15 to 17
14 to 20

Alloy Composition

Carbon (C), % 0.18 to 0.23
0 to 0.080
Chromium (Cr), % 0
17 to 19
Iron (Fe), % 98.8 to 99.22
65.2 to 74
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Nickel (Ni), % 0
9.0 to 12
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.015
Titanium (Ti), % 0
0 to 0.7