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ACI-ASTM CT15C Steel vs. EN 1.4122 Stainless Steel

Both ACI-ASTM CT15C steel and EN 1.4122 stainless steel are iron alloys. They have 63% 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 ACI-ASTM CT15C steel and the bottom bar is EN 1.4122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
14
Fatigue Strength, MPa 130
260 to 360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 500
790 to 850
Tensile Strength: Yield (Proof), MPa 190
450 to 630

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 560
400
Maximum Temperature: Mechanical, °C 1080
870
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
9.5
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 6.1
2.4
Embodied Energy, MJ/kg 88
33
Embodied Water, L/kg 190
120

Common Calculations

PREN (Pitting Resistance) 20
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
93 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 93
520 to 1000
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
28 to 31
Strength to Weight: Bending, points 17
25 to 26
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 12
28 to 30

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.33 to 0.45
Chromium (Cr), % 19 to 21
15.5 to 17.5
Iron (Fe), % 40.3 to 49.2
77.2 to 83.4
Manganese (Mn), % 0.15 to 1.5
0 to 1.5
Molybdenum (Mo), % 0
0.8 to 1.3
Nickel (Ni), % 31 to 34
0 to 1.0
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.15 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015