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SAE-AISI M4 Steel vs. AWS E209

Both SAE-AISI M4 steel and AWS E209 are iron alloys. They have 66% of their average alloy composition in common. There are 20 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 M4 steel and the bottom bar is AWS E209.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
770

Thermal Properties

Latent Heat of Fusion, J/g 260
300
Melting Completion (Liquidus), °C 1610
1420
Melting Onset (Solidus), °C 1560
1370
Specific Heat Capacity, J/kg-K 440
480
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 25
21
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 14
4.4
Embodied Energy, MJ/kg 210
63
Embodied Water, L/kg 110
180

Common Calculations

PREN (Pitting Resistance) 30
33
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 72
28
Strength to Weight: Bending, points 23 to 45
24
Thermal Shock Resistance, points 24 to 68
19

Alloy Composition

Carbon (C), % 1.3 to 1.4
0 to 0.060
Chromium (Cr), % 3.8 to 4.8
20.5 to 24
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 75.9 to 81.4
51.5 to 64.3
Manganese (Mn), % 0.15 to 0.4
4.0 to 7.0
Molybdenum (Mo), % 4.3 to 5.5
1.5 to 3.0
Nickel (Ni), % 0 to 0.3
9.5 to 12
Nitrogen (N), % 0
0.1 to 0.3
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
0
Vanadium (V), % 3.8 to 4.5
0.1 to 0.3