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ACI-ASTM CA15 Steel vs. S45000 Stainless Steel

Both ACI-ASTM CA15 steel and S45000 stainless steel are iron alloys. They have a moderately high 90% 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 ACI-ASTM CA15 steel and the bottom bar is S45000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
280 to 410
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
6.8 to 14
Fatigue Strength, MPa 370
330 to 650
Poisson's Ratio 0.28
0.28
Reduction in Area, % 34
22 to 50
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 700
980 to 1410
Tensile Strength: Yield (Proof), MPa 570
580 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
400
Maximum Temperature: Mechanical, °C 750
840
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1500
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
17
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
13
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.0
2.8
Embodied Energy, MJ/kg 28
39
Embodied Water, L/kg 100
130

Common Calculations

PREN (Pitting Resistance) 14
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
94 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 820
850 to 4400
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
35 to 50
Strength to Weight: Bending, points 23
28 to 36
Thermal Diffusivity, mm2/s 6.7
4.5
Thermal Shock Resistance, points 26
33 to 47

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.050
Chromium (Cr), % 11.5 to 14
14 to 16
Copper (Cu), % 0
1.3 to 1.8
Iron (Fe), % 81.8 to 88.5
72.1 to 79.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.5 to 1.0
Nickel (Ni), % 0 to 1.0
5.0 to 7.0
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 0.030