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SAE-AISI 52100 Steel vs. EN 1.4621 Stainless Steel

Both SAE-AISI 52100 steel and EN 1.4621 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 30 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 52100 steel and the bottom bar is EN 1.4621 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10 to 20
25
Fatigue Strength, MPa 250 to 340
190
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
78
Shear Strength, MPa 370 to 420
320
Tensile Strength: Ultimate (UTS), MPa 590 to 2010
500
Tensile Strength: Yield (Proof), MPa 360 to 560
270

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 430
970
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 47
21
Thermal Expansion, µm/m-K 12 to 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.8
Embodied Energy, MJ/kg 20
41
Embodied Water, L/kg 51
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54 to 310
110
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 840
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 72
18
Strength to Weight: Bending, points 20 to 45
18
Thermal Diffusivity, mm2/s 13
5.7
Thermal Shock Resistance, points 19 to 61
17

Alloy Composition

Carbon (C), % 0.93 to 1.1
0 to 0.030
Chromium (Cr), % 1.4 to 1.6
20 to 21.5
Copper (Cu), % 0
0.1 to 1.0
Iron (Fe), % 96.5 to 97.3
74.4 to 79.7
Manganese (Mn), % 0.25 to 0.45
0 to 1.0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.015