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EN 1.4805 Stainless Steel vs. SAE-AISI 1044 Steel

Both EN 1.4805 stainless steel and SAE-AISI 1044 steel are iron alloys. They have 52% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is EN 1.4805 stainless steel and the bottom bar is SAE-AISI 1044 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 9.0
18
Fatigue Strength, MPa 130
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 490
620
Tensile Strength: Yield (Proof), MPa 250
340

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 14
51
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 26
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.7
1.4
Embodied Energy, MJ/kg 66
18
Embodied Water, L/kg 180
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
94
Resilience: Unit (Modulus of Resilience), kJ/m3 150
320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
22
Strength to Weight: Bending, points 18
21
Thermal Diffusivity, mm2/s 3.7
14
Thermal Shock Resistance, points 11
20

Alloy Composition

Carbon (C), % 0.2 to 0.5
0.43 to 0.5
Chromium (Cr), % 19 to 23
0
Iron (Fe), % 44.9 to 56.8
98.8 to 99.27
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 23 to 27
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050