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AISI 205 Stainless Steel vs. ACI-ASTM CT15C Steel

Both AISI 205 stainless steel and ACI-ASTM CT15C steel are iron alloys. They have 65% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 205 stainless steel and the bottom bar is ACI-ASTM CT15C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 440
140
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 11 to 51
23
Fatigue Strength, MPa 410 to 640
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 800 to 1430
500
Tensile Strength: Yield (Proof), MPa 450 to 1100
190

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 410
560
Maximum Temperature: Mechanical, °C 880
1080
Melting Completion (Liquidus), °C 1380
1410
Melting Onset (Solidus), °C 1340
1360
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 18
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
36
Density, g/cm3 7.6
8.0
Embodied Carbon, kg CO2/kg material 2.6
6.1
Embodied Energy, MJ/kg 37
88
Embodied Water, L/kg 150
190

Common Calculations

PREN (Pitting Resistance) 23
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 430
90
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 3060
93
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 29 to 52
17
Strength to Weight: Bending, points 25 to 37
17
Thermal Shock Resistance, points 16 to 29
12

Alloy Composition

Carbon (C), % 0.12 to 0.25
0.050 to 0.15
Chromium (Cr), % 16.5 to 18.5
19 to 21
Iron (Fe), % 62.6 to 68.1
40.3 to 49.2
Manganese (Mn), % 14 to 15.5
0.15 to 1.5
Nickel (Ni), % 1.0 to 1.7
31 to 34
Niobium (Nb), % 0
0.5 to 1.5
Nitrogen (N), % 0.32 to 0.4
0
Phosphorus (P), % 0 to 0.060
0 to 0.030
Silicon (Si), % 0 to 1.0
0.15 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030