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SAE-AISI 1074 Steel vs. EN 1.4539 Stainless Steel

Both SAE-AISI 1074 steel and EN 1.4539 stainless steel are iron alloys. They have 48% 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 EN 1.4539 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 250
200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 14
38
Fatigue Strength, MPa 290 to 350
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
79
Shear Strength, MPa 440 to 490
430
Tensile Strength: Ultimate (UTS), MPa 740 to 820
630
Tensile Strength: Yield (Proof), MPa 450 to 570
260

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 50
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
31
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.4
5.7
Embodied Energy, MJ/kg 19
78
Embodied Water, L/kg 46
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
190
Resilience: Unit (Modulus of Resilience), kJ/m3 550 to 860
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26 to 29
22
Strength to Weight: Bending, points 23 to 25
20
Thermal Diffusivity, mm2/s 14
3.2
Thermal Shock Resistance, points 24 to 26
14

Alloy Composition

Carbon (C), % 0.7 to 0.8
0 to 0.020
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 98.3 to 98.8
43.1 to 51.8
Manganese (Mn), % 0.5 to 0.8
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0
24 to 26
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
0 to 0.7
Sulfur (S), % 0 to 0.050
0 to 0.010