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ACI-ASTM CT15C Steel vs. EN 1.4539 Stainless Steel

Both ACI-ASTM CT15C steel and EN 1.4539 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 32 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 CT15C steel and the bottom bar is EN 1.4539 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
38
Fatigue Strength, MPa 130
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 500
630
Tensile Strength: Yield (Proof), MPa 190
260

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 560
420
Maximum Temperature: Mechanical, °C 1080
1100
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1360
1390
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 12
12
Thermal Expansion, µm/m-K 16
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 36
31
Density, g/cm3 8.0
8.1
Embodied Carbon, kg CO2/kg material 6.1
5.7
Embodied Energy, MJ/kg 88
78
Embodied Water, L/kg 190
200

Common Calculations

PREN (Pitting Resistance) 20
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
190
Resilience: Unit (Modulus of Resilience), kJ/m3 93
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
22
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 3.2
3.2
Thermal Shock Resistance, points 12
14

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.020
Chromium (Cr), % 19 to 21
19 to 21
Copper (Cu), % 0
1.2 to 2.0
Iron (Fe), % 40.3 to 49.2
43.1 to 51.8
Manganese (Mn), % 0.15 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 31 to 34
24 to 26
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.15 to 1.5
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.010