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SAE-AISI M34 Steel vs. AWS E309Mo

Both SAE-AISI M34 steel and AWS E309Mo 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 M34 steel and the bottom bar is AWS E309Mo.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 800 to 2170
620

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1540
1430
Melting Onset (Solidus), °C 1500
1390
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 24
15
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 32
22
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 9.5
4.2
Embodied Energy, MJ/kg 140
59
Embodied Water, L/kg 150
180

Common Calculations

PREN (Pitting Resistance) 35
32
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 74
22
Strength to Weight: Bending, points 23 to 46
20
Thermal Diffusivity, mm2/s 6.7
3.9
Thermal Shock Resistance, points 25 to 67
15

Alloy Composition

Carbon (C), % 0.85 to 0.92
0 to 0.12
Chromium (Cr), % 3.5 to 4.0
22 to 25
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 71.3 to 76.5
53.6 to 63.5
Manganese (Mn), % 0.15 to 0.4
0.5 to 2.5
Molybdenum (Mo), % 7.8 to 9.2
2.0 to 3.0
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), % 1.4 to 2.1
0
Vanadium (V), % 1.9 to 2.3
0