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AWS E349 vs. SAE-AISI M42 Steel

Both AWS E349 and SAE-AISI M42 steel are iron alloys. They have 73% 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 AWS E349 and the bottom bar is SAE-AISI M42 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 770
810 to 2310

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Melting Completion (Liquidus), °C 1470
1540
Melting Onset (Solidus), °C 1420
1490
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 15
20
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Base Metal Price, % relative 25
30
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 4.9
7.4
Embodied Energy, MJ/kg 72
100
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 24
38
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
28 to 79
Strength to Weight: Bending, points 24
24 to 48
Thermal Diffusivity, mm2/s 4.1
5.4
Thermal Shock Resistance, points 20
25 to 71

Alloy Composition

Carbon (C), % 0 to 0.13
1.1 to 1.2
Chromium (Cr), % 18 to 21
3.5 to 4.3
Cobalt (Co), % 0
7.8 to 8.8
Copper (Cu), % 0 to 0.75
0 to 0.25
Iron (Fe), % 60.5 to 71.1
76.3 to 81
Manganese (Mn), % 0.5 to 2.5
0.15 to 0.4
Molybdenum (Mo), % 0.35 to 0.65
9.0 to 10
Nickel (Ni), % 8.0 to 10
0 to 0.3
Niobium (Nb), % 0.75 to 1.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 0.65
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.15
0
Tungsten (W), % 1.3 to 1.8
1.2 to 1.9
Vanadium (V), % 0.1 to 0.3
1.0 to 1.4