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EN 1.4558 Stainless Steel vs. SAE-AISI 1045 Steel

Both EN 1.4558 stainless steel and SAE-AISI 1045 steel are iron alloys. They have 44% 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 1.4558 stainless steel and the bottom bar is SAE-AISI 1045 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
13 to 18
Fatigue Strength, MPa 170
220 to 370
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Shear Strength, MPa 350
380 to 410
Tensile Strength: Ultimate (UTS), MPa 510
620 to 680
Tensile Strength: Yield (Proof), MPa 200
330 to 580

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
51
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 31
1.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.5
1.4
Embodied Energy, MJ/kg 77
18
Embodied Water, L/kg 200
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
84 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 100
300 to 900
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
22 to 24
Strength to Weight: Bending, points 18
21 to 22
Thermal Diffusivity, mm2/s 3.1
14
Thermal Shock Resistance, points 12
20 to 22

Alloy Composition

Aluminum (Al), % 0.15 to 0.45
0
Carbon (C), % 0 to 0.030
0.43 to 0.5
Chromium (Cr), % 20 to 23
0
Iron (Fe), % 39.2 to 47.9
98.5 to 99
Manganese (Mn), % 0 to 1.0
0.6 to 0.9
Nickel (Ni), % 32 to 35
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.7
0
Sulfur (S), % 0 to 0.015
0 to 0.050
Titanium (Ti), % 0 to 0.6
0