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SAE-AISI 1046 Steel vs. EN 1.4859 Stainless Steel

Both SAE-AISI 1046 steel and EN 1.4859 stainless steel are iron alloys. They have 46% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1046 steel and the bottom bar is EN 1.4859 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 210
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 14 to 17
23
Fatigue Strength, MPa 240 to 390
140
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Tensile Strength: Ultimate (UTS), MPa 660 to 740
490
Tensile Strength: Yield (Proof), MPa 370 to 610
210

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
1050
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
13
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 12
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
36
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.4
6.2
Embodied Energy, MJ/kg 18
88
Embodied Water, L/kg 46
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 95
91
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 990
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 26
17
Strength to Weight: Bending, points 22 to 23
17
Thermal Diffusivity, mm2/s 14
3.4
Thermal Shock Resistance, points 23 to 25
11

Alloy Composition

Carbon (C), % 0.43 to 0.5
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Iron (Fe), % 98.4 to 98.9
40.3 to 49
Manganese (Mn), % 0.7 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
31 to 33
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0.5 to 1.5
Sulfur (S), % 0 to 0.050
0 to 0.030