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S64512 Stainless Steel vs. ACI-ASTM CA15 Steel

Both S64512 stainless steel and ACI-ASTM CA15 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S64512 stainless steel and the bottom bar is ACI-ASTM CA15 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
21
Fatigue Strength, MPa 540
370
Poisson's Ratio 0.28
0.28
Reduction in Area, % 34
34
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 1140
700
Tensile Strength: Yield (Proof), MPa 890
570

Thermal Properties

Latent Heat of Fusion, J/g 270
280
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 750
750
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1500
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 28
25
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 4.1
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
7.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.3
2.0
Embodied Energy, MJ/kg 47
28
Embodied Water, L/kg 110
100

Common Calculations

PREN (Pitting Resistance) 18
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
140
Resilience: Unit (Modulus of Resilience), kJ/m3 2020
820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 40
25
Strength to Weight: Bending, points 31
23
Thermal Diffusivity, mm2/s 7.5
6.7
Thermal Shock Resistance, points 42
26

Alloy Composition

Carbon (C), % 0.080 to 0.15
0 to 0.15
Chromium (Cr), % 11 to 12.5
11.5 to 14
Iron (Fe), % 80.6 to 84.7
81.8 to 88.5
Manganese (Mn), % 0.5 to 0.9
0 to 1.0
Molybdenum (Mo), % 1.5 to 2.0
0 to 0.5
Nickel (Ni), % 2.0 to 3.0
0 to 1.0
Nitrogen (N), % 0.010 to 0.050
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.35
0 to 1.5
Sulfur (S), % 0 to 0.025
0 to 0.040
Vanadium (V), % 0.25 to 0.4
0