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SAE-AISI M4 Steel vs. AWS E309L

Both SAE-AISI M4 steel and AWS E309L are iron alloys. They have 66% of their average alloy composition in common. There are 22 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 E309L.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
580

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 Conductivity, W/m-K 25
15
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 25
20
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 14
3.7
Embodied Energy, MJ/kg 210
52
Embodied Water, L/kg 110
180

Common Calculations

PREN (Pitting Resistance) 30
25
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 72
21
Strength to Weight: Bending, points 23 to 45
20
Thermal Diffusivity, mm2/s 6.9
4.0
Thermal Shock Resistance, points 24 to 68
15

Alloy Composition

Carbon (C), % 1.3 to 1.4
0 to 0.040
Chromium (Cr), % 3.8 to 4.8
22 to 25
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 75.9 to 81.4
55.9 to 65.5
Manganese (Mn), % 0.15 to 0.4
0.5 to 2.5
Molybdenum (Mo), % 4.3 to 5.5
0 to 0.75
Nickel (Ni), % 0 to 0.3
12 to 14
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