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EN 1.4451 Stainless Steel vs. SAE-AISI 1146 Steel

Both EN 1.4451 stainless steel and SAE-AISI 1146 steel are iron alloys. They have 61% 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 EN 1.4451 stainless steel and the bottom bar is SAE-AISI 1146 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
190 to 200
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 25
13 to 17
Fatigue Strength, MPa 370
240 to 400
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
72
Tensile Strength: Ultimate (UTS), MPa 750
670 to 730
Tensile Strength: Yield (Proof), MPa 540
360 to 630

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
51
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 20
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.4
Embodied Energy, MJ/kg 53
18
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
93 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 710
340 to 1050
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
24 to 26
Strength to Weight: Bending, points 23
22 to 23
Thermal Diffusivity, mm2/s 4.5
14
Thermal Shock Resistance, points 16
20 to 22

Alloy Composition

Carbon (C), % 0 to 0.030
0.42 to 0.49
Chromium (Cr), % 25 to 27
0
Copper (Cu), % 2.8 to 3.5
0
Iron (Fe), % 56.2 to 64.6
98.3 to 98.8
Manganese (Mn), % 0 to 1.5
0.7 to 1.0
Molybdenum (Mo), % 2.5 to 3.5
0
Nickel (Ni), % 5.0 to 7.0
0
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.025
0.080 to 0.13