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ACI-ASTM CT15C Steel vs. EN 1.4557 Stainless Steel

Both ACI-ASTM CT15C steel and EN 1.4557 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CT15C steel and the bottom bar is EN 1.4557 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
40
Fatigue Strength, MPa 130
260
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
80
Tensile Strength: Ultimate (UTS), MPa 500
560
Tensile Strength: Yield (Proof), MPa 190
300

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 560
420
Maximum Temperature: Mechanical, °C 1080
1090
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 36
29
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 6.1
5.6
Embodied Energy, MJ/kg 88
76
Embodied Water, L/kg 190
190

Common Calculations

PREN (Pitting Resistance) 20
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
190
Resilience: Unit (Modulus of Resilience), kJ/m3 93
210
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 17
19
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 12
12

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.020
Chromium (Cr), % 19 to 21
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 40.3 to 49.2
49.5 to 56.3
Manganese (Mn), % 0.15 to 1.5
0 to 1.2
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 31 to 34
17.5 to 19.5
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010