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EN 1.4035 Stainless Steel vs. SAE-AISI 1078 Steel

Both EN 1.4035 stainless steel and SAE-AISI 1078 steel are iron alloys. They have 85% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4035 stainless steel and the bottom bar is SAE-AISI 1078 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
220 to 230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
11 to 14
Fatigue Strength, MPa 250
270 to 350
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Shear Strength, MPa 430
440 to 470
Tensile Strength: Ultimate (UTS), MPa 690
730 to 780
Tensile Strength: Yield (Proof), MPa 400
430 to 570

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 760
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 29
49
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 27
18
Embodied Water, L/kg 100
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
77 to 90
Resilience: Unit (Modulus of Resilience), kJ/m3 420
490 to 860
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
26 to 28
Strength to Weight: Bending, points 22
23 to 24
Thermal Diffusivity, mm2/s 7.8
13
Thermal Shock Resistance, points 25
25 to 26

Alloy Composition

Carbon (C), % 0.43 to 0.5
0.72 to 0.85
Chromium (Cr), % 12.5 to 14
0
Iron (Fe), % 82.1 to 86.9
98.5 to 99
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0.15 to 0.35
0 to 0.050