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SAE-AISI 1049 Steel vs. AISI 414 Stainless Steel

Both SAE-AISI 1049 steel and AISI 414 stainless steel are iron alloys. They have 85% 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 AISI 414 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
17
Fatigue Strength, MPa 250 to 400
430 to 480
Poisson's Ratio 0.29
0.28
Reduction in Area, % 34 to 46
50
Shear Modulus, GPa 72
76
Shear Strength, MPa 420 to 450
550 to 590
Tensile Strength: Ultimate (UTS), MPa 680 to 750
900 to 960
Tensile Strength: Yield (Proof), MPa 370 to 640
700 to 790

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
750
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
25
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
8.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.1
Embodied Energy, MJ/kg 18
29
Embodied Water, L/kg 46
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 75 to 99
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 370 to 1090
1260 to 1590
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 27
32 to 34
Strength to Weight: Bending, points 22 to 23
27 to 28
Thermal Diffusivity, mm2/s 14
6.7
Thermal Shock Resistance, points 22 to 24
33 to 35

Alloy Composition

Carbon (C), % 0.46 to 0.53
0 to 0.15
Chromium (Cr), % 0
11.5 to 13.5
Iron (Fe), % 98.5 to 98.9
81.8 to 87.3
Manganese (Mn), % 0.6 to 0.9
0 to 1.0
Nickel (Ni), % 0
1.3 to 2.5
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030