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EN 1.4935 Stainless Steel vs. SAE-AISI 1078 Steel

Both EN 1.4935 stainless steel and SAE-AISI 1078 steel are iron alloys. They have 86% 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 1.4935 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, % 16 to 18
11 to 14
Fatigue Strength, MPa 350 to 400
270 to 350
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Shear Strength, MPa 480 to 540
440 to 470
Tensile Strength: Ultimate (UTS), MPa 780 to 880
730 to 780
Tensile Strength: Yield (Proof), MPa 570 to 670
430 to 570

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 740
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 24
49
Thermal Expansion, µm/m-K 11
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 9.0
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.9
1.4
Embodied Energy, MJ/kg 42
18
Embodied Water, L/kg 100
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
77 to 90
Resilience: Unit (Modulus of Resilience), kJ/m3 830 to 1160
490 to 860
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 31
26 to 28
Strength to Weight: Bending, points 24 to 26
23 to 24
Thermal Diffusivity, mm2/s 6.5
13
Thermal Shock Resistance, points 27 to 30
25 to 26

Alloy Composition

Carbon (C), % 0.17 to 0.24
0.72 to 0.85
Chromium (Cr), % 11 to 12.5
0
Iron (Fe), % 83 to 86.7
98.5 to 99
Manganese (Mn), % 0.3 to 0.8
0.3 to 0.6
Molybdenum (Mo), % 0.8 to 1.2
0
Nickel (Ni), % 0.3 to 0.8
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.5
0
Sulfur (S), % 0 to 0.015
0 to 0.050
Tungsten (W), % 0.4 to 0.6
0
Vanadium (V), % 0.2 to 0.35
0

Comparable Variants