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ACI-ASTM CA15M Steel vs. N08801 Stainless Steel

Both ACI-ASTM CA15M steel and N08801 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 (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA15M steel and the bottom bar is N08801 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 20
34
Fatigue Strength, MPa 330
260
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 690
860
Tensile Strength: Yield (Proof), MPa 510
190

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 390
630
Maximum Temperature: Mechanical, °C 760
1090
Melting Completion (Liquidus), °C 1450
1390
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 27
12
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
30
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.1
5.5
Embodied Energy, MJ/kg 29
79
Embodied Water, L/kg 100
200

Common Calculations

PREN (Pitting Resistance) 15
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
220
Resilience: Unit (Modulus of Resilience), kJ/m3 670
92
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
30
Strength to Weight: Bending, points 22
25
Thermal Diffusivity, mm2/s 7.2
3.3
Thermal Shock Resistance, points 25
20

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.1
Chromium (Cr), % 11.5 to 14
19 to 22
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 82.1 to 88.4
39.5 to 50.3
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.15 to 1.0
0
Nickel (Ni), % 0 to 1.0
30 to 34
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.65
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015
Titanium (Ti), % 0
0.75 to 1.5