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SAE-AISI M4 Steel vs. AWS E3155

Both SAE-AISI M4 steel and AWS E3155 are iron alloys. They have 41% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M4 steel and the bottom bar is AWS E3155.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 76
81
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
770

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1560
1410
Specific Heat Capacity, J/kg-K 440
450
Thermal Conductivity, W/m-K 25
13
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 25
70
Density, g/cm3 8.3
8.4
Embodied Carbon, kg CO2/kg material 14
7.7
Embodied Energy, MJ/kg 210
110
Embodied Water, L/kg 110
300

Common Calculations

PREN (Pitting Resistance) 30
35
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 26 to 72
26
Strength to Weight: Bending, points 23 to 45
22
Thermal Diffusivity, mm2/s 6.9
3.3
Thermal Shock Resistance, points 24 to 68
20

Alloy Composition

Carbon (C), % 1.3 to 1.4
0 to 0.1
Chromium (Cr), % 3.8 to 4.8
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 75.9 to 81.4
23.3 to 36.3
Manganese (Mn), % 0.15 to 0.4
1.0 to 2.5
Molybdenum (Mo), % 4.3 to 5.5
2.5 to 3.5
Nickel (Ni), % 0 to 0.3
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 5.3 to 6.5
2.0 to 3.0
Vanadium (V), % 3.8 to 4.5
0