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SAE-AISI M1 Steel vs. AWS E309H

Both SAE-AISI M1 steel and AWS E309H 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 M1 steel and the bottom bar is AWS E309H.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 730 to 2140
620

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1560
1410
Melting Onset (Solidus), °C 1510
1370
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 29
15
Thermal Expansion, µm/m-K 12
14

Otherwise Unclassified Properties

Base Metal Price, % relative 18
20
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 7.0
3.7
Embodied Energy, MJ/kg 99
52
Embodied Water, L/kg 98
180

Common Calculations

PREN (Pitting Resistance) 35
25
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 73
22
Strength to Weight: Bending, points 22 to 45
21
Thermal Diffusivity, mm2/s 8.0
4.0
Thermal Shock Resistance, points 23 to 66
16

Alloy Composition

Carbon (C), % 0.78 to 0.88
0.040 to 0.15
Chromium (Cr), % 3.5 to 4.0
22 to 25
Copper (Cu), % 0 to 0.25
0 to 0.75
Iron (Fe), % 81 to 84.8
55.8 to 65.5
Manganese (Mn), % 0.15 to 0.4
0.5 to 2.5
Molybdenum (Mo), % 8.2 to 9.2
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 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.0 to 1.4
0