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SAE-AISI 1049 Steel vs. EN 1.4306 Stainless Steel

Both SAE-AISI 1049 steel and EN 1.4306 stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 31 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 1049 steel and the bottom bar is EN 1.4306 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
190 to 270
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 17
14 to 45
Fatigue Strength, MPa 250 to 400
190 to 330
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 420 to 450
400 to 550
Tensile Strength: Ultimate (UTS), MPa 680 to 750
580 to 900
Tensile Strength: Yield (Proof), MPa 370 to 640
210 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
960
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.2
Embodied Energy, MJ/kg 18
45
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75 to 99
110 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 370 to 1090
110 to 820
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 27
21 to 32
Strength to Weight: Bending, points 22 to 23
20 to 27
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 22 to 24
13 to 20

Alloy Composition

Carbon (C), % 0.46 to 0.53
0 to 0.030
Chromium (Cr), % 0
18 to 20
Iron (Fe), % 98.5 to 98.9
64.8 to 72
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Nickel (Ni), % 0
10 to 12
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.015