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EN 1.4595 Stainless Steel vs. SAE-AISI 1078 Steel

Both EN 1.4595 stainless steel and SAE-AISI 1078 steel are iron alloys. They have 84% 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 1.4595 stainless steel and the bottom bar is SAE-AISI 1078 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
11 to 14
Fatigue Strength, MPa 180
270 to 350
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Shear Strength, MPa 310
440 to 470
Tensile Strength: Ultimate (UTS), MPa 470
730 to 780
Tensile Strength: Yield (Proof), MPa 250
430 to 570

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 810
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
49
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 10
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.4
Embodied Energy, MJ/kg 34
18
Embodied Water, L/kg 110
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
77 to 90
Resilience: Unit (Modulus of Resilience), kJ/m3 150
490 to 860
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
26 to 28
Strength to Weight: Bending, points 17
23 to 24
Thermal Diffusivity, mm2/s 8.1
13
Thermal Shock Resistance, points 17
25 to 26

Alloy Composition

Carbon (C), % 0 to 0.020
0.72 to 0.85
Chromium (Cr), % 14 to 16
0
Iron (Fe), % 81.3 to 85.8
98.5 to 99
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
Niobium (Nb), % 0.2 to 0.6
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0 to 0.050