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SAE-AISI 1074 Steel vs. S44330 Stainless Steel

Both SAE-AISI 1074 steel and S44330 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 31 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 S44330 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 14
25
Fatigue Strength, MPa 290 to 350
160
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
78
Shear Strength, MPa 440 to 490
280
Tensile Strength: Ultimate (UTS), MPa 740 to 820
440
Tensile Strength: Yield (Proof), MPa 450 to 570
230

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
990
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
21
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 19
40
Embodied Water, L/kg 46
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
91
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 860
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 29
16
Strength to Weight: Bending, points 23 to 25
17
Thermal Diffusivity, mm2/s 14
5.7
Thermal Shock Resistance, points 24 to 26
16

Alloy Composition

Carbon (C), % 0.7 to 0.8
0 to 0.025
Chromium (Cr), % 0
20 to 23
Copper (Cu), % 0
0.3 to 0.8
Iron (Fe), % 98.3 to 98.8
72.5 to 79.7
Manganese (Mn), % 0.5 to 0.8
0 to 1.0
Niobium (Nb), % 0
0 to 0.8
Nitrogen (N), % 0
0 to 0.025
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
Titanium (Ti), % 0
0 to 0.8