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EN 1.4518 Stainless Steel vs. ACI-ASTM CT15C Steel

Both EN 1.4518 stainless steel and ACI-ASTM CT15C steel are iron alloys. They have 76% of their average alloy composition in common. There are 31 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 EN 1.4518 stainless steel and the bottom bar is ACI-ASTM CT15C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
23
Fatigue Strength, MPa 160
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 490
500
Tensile Strength: Yield (Proof), MPa 210
190

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 420
560
Maximum Temperature: Mechanical, °C 1000
1080
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 20
36
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 4.0
6.1
Embodied Energy, MJ/kg 55
88
Embodied Water, L/kg 160
190

Common Calculations

PREN (Pitting Resistance) 30
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
90
Resilience: Unit (Modulus of Resilience), kJ/m3 100
93
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
17
Strength to Weight: Bending, points 18
17
Thermal Diffusivity, mm2/s 4.1
3.2
Thermal Shock Resistance, points 14
12

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.15
Chromium (Cr), % 18 to 20
19 to 21
Iron (Fe), % 61.4 to 70
40.3 to 49.2
Manganese (Mn), % 0 to 1.5
0.15 to 1.5
Molybdenum (Mo), % 3.0 to 3.5
0
Nickel (Ni), % 9.0 to 12
31 to 34
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
0.15 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.030