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SAE-AISI 4621 Steel vs. EN 1.8503 Steel

Both SAE-AISI 4621 steel and EN 1.8503 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4621 steel and the bottom bar is EN 1.8503 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 27
16
Fatigue Strength, MPa 270
600
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 320
610
Tensile Strength: Ultimate (UTS), MPa 500
1000
Tensile Strength: Yield (Proof), MPa 360
910

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
440
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 46
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 3.3
3.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.6
2.3
Embodied Energy, MJ/kg 22
33
Embodied Water, L/kg 50
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
150
Resilience: Unit (Modulus of Resilience), kJ/m3 340
2200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
35
Strength to Weight: Bending, points 18
28
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 15
29

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0.18 to 0.23
0.16 to 0.24
Chromium (Cr), % 0
1.2 to 1.5
Iron (Fe), % 96.1 to 97.1
95.8 to 97.5
Manganese (Mn), % 0.7 to 0.9
0.4 to 0.8
Molybdenum (Mo), % 0.2 to 0.3
0.65 to 0.8
Nickel (Ni), % 1.7 to 2.0
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.035
Vanadium (V), % 0
0.25 to 0.35