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SAE-AISI 1074 Steel vs. EN 1.4029 Stainless Steel

Both SAE-AISI 1074 steel and EN 1.4029 stainless steel are iron alloys. They have 86% 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 1074 steel and the bottom bar is EN 1.4029 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
10 to 20
Fatigue Strength, MPa 290 to 350
270 to 400
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Shear Strength, MPa 440 to 490
440 to 550
Tensile Strength: Ultimate (UTS), MPa 740 to 820
700 to 930
Tensile Strength: Yield (Proof), MPa 450 to 570
410 to 740

Thermal Properties

Latent Heat of Fusion, J/g 250
270
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 50
30
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.0
Embodied Energy, MJ/kg 19
28
Embodied Water, L/kg 46
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
89 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 860
440 to 1410
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 29
25 to 33
Strength to Weight: Bending, points 23 to 25
23 to 27
Thermal Diffusivity, mm2/s 14
8.1
Thermal Shock Resistance, points 24 to 26
26 to 34

Alloy Composition

Carbon (C), % 0.7 to 0.8
0.25 to 0.32
Chromium (Cr), % 0
12 to 13.5
Iron (Fe), % 98.3 to 98.8
82.8 to 87.6
Manganese (Mn), % 0.5 to 0.8
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0.15 to 0.25