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SAE-AISI M33 Steel vs. EN 1.7729 Steel

Both SAE-AISI M33 steel and EN 1.7729 steel are iron alloys. They have 77% of their average alloy composition in common. There are 22 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 M33 steel and the bottom bar is EN 1.7729 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 78
73
Tensile Strength: Ultimate (UTS), MPa 810 to 2210
910

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Melting Completion (Liquidus), °C 1550
1470
Melting Onset (Solidus), °C 1500
1430
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 20
40
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 32
3.8
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 7.7
3.3
Embodied Energy, MJ/kg 110
49
Embodied Water, L/kg 150
59

Common Calculations

PREN (Pitting Resistance) 38
4.4
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 75
32
Strength to Weight: Bending, points 24 to 46
27
Thermal Diffusivity, mm2/s 5.5
11
Thermal Shock Resistance, points 25 to 68
27

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.080
Arsenic (As), % 0
0 to 0.020
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0.85 to 0.92
0.17 to 0.23
Chromium (Cr), % 3.5 to 4.0
0.9 to 1.2
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0 to 0.2
Iron (Fe), % 71.4 to 76.3
94.8 to 97
Manganese (Mn), % 0.15 to 0.4
0.35 to 0.75
Molybdenum (Mo), % 9.0 to 10
0.9 to 1.1
Nickel (Ni), % 0 to 0.3
0 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0.15 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.015
Tin (Sn), % 0
0 to 0.020
Titanium (Ti), % 0
0.070 to 0.15
Tungsten (W), % 1.3 to 2.1
0
Vanadium (V), % 1.0 to 1.4
0.6 to 0.8