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S40920 Stainless Steel vs. S64512 Stainless Steel

Both S40920 stainless steel and S64512 stainless steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 33 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 S40920 stainless steel and the bottom bar is S64512 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 22
17
Fatigue Strength, MPa 130
540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 270
700
Tensile Strength: Ultimate (UTS), MPa 430
1140
Tensile Strength: Yield (Proof), MPa 190
890

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 710
750
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 26
28
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
4.1

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
10
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
3.3
Embodied Energy, MJ/kg 28
47
Embodied Water, L/kg 94
110

Common Calculations

PREN (Pitting Resistance) 11
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
180
Resilience: Unit (Modulus of Resilience), kJ/m3 97
2020
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 15
40
Strength to Weight: Bending, points 16
31
Thermal Diffusivity, mm2/s 6.9
7.5
Thermal Shock Resistance, points 15
42

Alloy Composition

Carbon (C), % 0 to 0.030
0.080 to 0.15
Chromium (Cr), % 10.5 to 11.7
11 to 12.5
Iron (Fe), % 85.1 to 89.4
80.6 to 84.7
Manganese (Mn), % 0 to 1.0
0.5 to 0.9
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0 to 0.5
2.0 to 3.0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.030
0.010 to 0.050
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.35
Sulfur (S), % 0 to 0.020
0 to 0.025
Titanium (Ti), % 0.15 to 0.5
0
Vanadium (V), % 0
0.25 to 0.4