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S35125 Stainless Steel vs. SAE-AISI 1078 Steel

Both S35125 stainless steel and SAE-AISI 1078 steel are iron alloys. They have 42% 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 S35125 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, % 39
11 to 14
Fatigue Strength, MPa 200
270 to 350
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
72
Shear Strength, MPa 370
440 to 470
Tensile Strength: Ultimate (UTS), MPa 540
730 to 780
Tensile Strength: Yield (Proof), MPa 230
430 to 570

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 12
49
Thermal Expansion, µm/m-K 16
11

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 36
1.8
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.4
1.4
Embodied Energy, MJ/kg 89
18
Embodied Water, L/kg 210
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
77 to 90
Resilience: Unit (Modulus of Resilience), kJ/m3 140
490 to 860
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 19
26 to 28
Strength to Weight: Bending, points 18
23 to 24
Thermal Diffusivity, mm2/s 3.1
13
Thermal Shock Resistance, points 12
25 to 26

Alloy Composition

Carbon (C), % 0 to 0.1
0.72 to 0.85
Chromium (Cr), % 20 to 23
0
Iron (Fe), % 36.2 to 45.8
98.5 to 99
Manganese (Mn), % 1.0 to 1.5
0.3 to 0.6
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 31 to 35
0
Niobium (Nb), % 0.25 to 0.6
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.015
0 to 0.050