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ACI-ASTM CA15 Steel vs. AISI 205 Stainless Steel

Both ACI-ASTM CA15 steel and AISI 205 stainless steel are iron alloys. They have 80% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA15 steel and the bottom bar is AISI 205 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
210 to 440
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21
11 to 51
Fatigue Strength, MPa 370
410 to 640
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 700
800 to 1430
Tensile Strength: Yield (Proof), MPa 570
450 to 1100

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 750
880
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1500
1340
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 10
18

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
11
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 2.0
2.6
Embodied Energy, MJ/kg 28
37
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 14
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
150 to 430
Resilience: Unit (Modulus of Resilience), kJ/m3 820
510 to 3060
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 25
29 to 52
Strength to Weight: Bending, points 23
25 to 37
Thermal Shock Resistance, points 26
16 to 29

Alloy Composition

Carbon (C), % 0 to 0.15
0.12 to 0.25
Chromium (Cr), % 11.5 to 14
16.5 to 18.5
Iron (Fe), % 81.8 to 88.5
62.6 to 68.1
Manganese (Mn), % 0 to 1.0
14 to 15.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
1.0 to 1.7
Nitrogen (N), % 0
0.32 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030