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ACI-ASTM CT15C Steel vs. EN 1.4020 Stainless Steel

Both ACI-ASTM CT15C steel and EN 1.4020 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, 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 1.4020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
190 to 340
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
13 to 34
Fatigue Strength, MPa 130
340 to 540
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 500
770 to 1130
Tensile Strength: Yield (Proof), MPa 190
430 to 950

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 560
410
Maximum Temperature: Mechanical, °C 1080
890
Melting Completion (Liquidus), °C 1410
1390
Melting Onset (Solidus), °C 1360
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 36
11
Density, g/cm3 8.0
7.6
Embodied Carbon, kg CO2/kg material 6.1
2.5
Embodied Energy, MJ/kg 88
37
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 20
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
140 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 93
460 to 2290
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
28 to 41
Strength to Weight: Bending, points 17
25 to 32
Thermal Shock Resistance, points 12
16 to 23

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.15
Chromium (Cr), % 19 to 21
16.5 to 19
Iron (Fe), % 40.3 to 49.2
62.8 to 71.8
Manganese (Mn), % 0.15 to 1.5
11 to 14
Nickel (Ni), % 31 to 34
0.5 to 2.5
Niobium (Nb), % 0.5 to 1.5
0
Nitrogen (N), % 0
0.2 to 0.45
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.15 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030