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ACI-ASTM CA15 Steel vs. N08811 Stainless Steel

Both ACI-ASTM CA15 steel and N08811 stainless steel are iron alloys. They have 59% of their average alloy composition in common. There are 31 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 ACI-ASTM CA15 steel and the bottom bar is N08811 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
33
Fatigue Strength, MPa 370
150
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 700
510
Tensile Strength: Yield (Proof), MPa 570
190

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
490
Maximum Temperature: Mechanical, °C 750
1100
Melting Completion (Liquidus), °C 1440
1390
Melting Onset (Solidus), °C 1500
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
12
Thermal Expansion, µm/m-K 10
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
30
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.0
5.3
Embodied Energy, MJ/kg 28
76
Embodied Water, L/kg 100
200

Common Calculations

PREN (Pitting Resistance) 14
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
130
Resilience: Unit (Modulus of Resilience), kJ/m3 820
94
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 6.7
3.0
Thermal Shock Resistance, points 26
13

Alloy Composition

Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0 to 0.15
0.060 to 0.1
Chromium (Cr), % 11.5 to 14
19 to 23
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 81.8 to 88.5
39.5 to 50.6
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
30 to 35
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6