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SAE-AISI M4 Steel vs. AWS E307

Both SAE-AISI M4 steel and AWS E307 are iron alloys. They have 71% 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 E307.

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
78
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
660

Thermal Properties

Latent Heat of Fusion, J/g 260
290
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
17
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 14
3.5
Embodied Energy, MJ/kg 210
49
Embodied Water, L/kg 110
160

Common Calculations

PREN (Pitting Resistance) 30
23
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 72
24
Strength to Weight: Bending, points 23 to 45
22
Thermal Diffusivity, mm2/s 6.9
4.1
Thermal Shock Resistance, points 24 to 68
17

Alloy Composition

Carbon (C), % 1.3 to 1.4
0.040 to 0.14
Chromium (Cr), % 3.8 to 4.8
18 to 21.5
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 75.9 to 81.4
59.6 to 69.2
Manganese (Mn), % 0.15 to 0.4
3.3 to 4.8
Molybdenum (Mo), % 4.3 to 5.5
0.5 to 1.5
Nickel (Ni), % 0 to 0.3
9.0 to 10.7
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