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SAE-AISI M3 Class 1 Steel vs. EN 1.0303 Steel

Both SAE-AISI M3 class 1 steel and EN 1.0303 steel are iron alloys. They have 80% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M3 class 1 steel and the bottom bar is EN 1.0303 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
290 to 410

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1610
1470
Melting Onset (Solidus), °C 1570
1430
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 26
53
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
1.8
Density, g/cm3 8.3
7.9
Embodied Carbon, kg CO2/kg material 10
1.4
Embodied Energy, MJ/kg 150
18
Embodied Water, L/kg 100
46

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 72
10 to 15
Strength to Weight: Bending, points 22 to 44
12 to 16
Thermal Diffusivity, mm2/s 7.2
14
Thermal Shock Resistance, points 24 to 67
9.2 to 13

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Carbon (C), % 1.0 to 1.1
0.020 to 0.060
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.9 to 82.9
99.335 to 99.71
Manganese (Mn), % 0.15 to 0.4
0.25 to 0.4
Molybdenum (Mo), % 4.8 to 6.5
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.2 to 0.45
0 to 0.1
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.3 to 2.8
0