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ACI-ASTM CT15C Steel vs. EN 1.4821 Stainless Steel

Both ACI-ASTM CT15C steel and EN 1.4821 stainless steel are iron alloys. They have 71% 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 1.4821 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
18
Fatigue Strength, MPa 130
280
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 76
79
Tensile Strength: Ultimate (UTS), MPa 500
730
Tensile Strength: Yield (Proof), MPa 190
450

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 560
450
Maximum Temperature: Mechanical, °C 1080
1100
Melting Completion (Liquidus), °C 1410
1410
Melting Onset (Solidus), °C 1360
1370
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
15
Density, g/cm3 8.0
7.6
Embodied Carbon, kg CO2/kg material 6.1
2.9
Embodied Energy, MJ/kg 88
41
Embodied Water, L/kg 190
160

Common Calculations

PREN (Pitting Resistance) 20
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
110
Resilience: Unit (Modulus of Resilience), kJ/m3 93
500
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 17
23
Thermal Diffusivity, mm2/s 3.2
4.6
Thermal Shock Resistance, points 12
21

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.1 to 0.2
Chromium (Cr), % 19 to 21
24.5 to 26.5
Iron (Fe), % 40.3 to 49.2
64.2 to 71.1
Manganese (Mn), % 0.15 to 1.5
0 to 2.0
Nickel (Ni), % 31 to 34
3.5 to 5.5
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 1.5
0.8 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.015