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EN 1.4415 Stainless Steel vs. ACI-ASTM CT15C Steel

Both EN 1.4415 stainless steel and ACI-ASTM CT15C 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 (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4415 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, % 17 to 20
23
Fatigue Strength, MPa 470 to 510
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 830 to 930
500
Tensile Strength: Yield (Proof), MPa 730 to 840
190

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 390
560
Maximum Temperature: Mechanical, °C 790
1080
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 19
12
Thermal Expansion, µm/m-K 9.9
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 3.6
6.1
Embodied Energy, MJ/kg 51
88
Embodied Water, L/kg 120
190

Common Calculations

PREN (Pitting Resistance) 19
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
90
Resilience: Unit (Modulus of Resilience), kJ/m3 1350 to 1790
93
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29 to 33
17
Strength to Weight: Bending, points 25 to 27
17
Thermal Diffusivity, mm2/s 5.1
3.2
Thermal Shock Resistance, points 30 to 34
12

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.15
Chromium (Cr), % 11.5 to 13.5
19 to 21
Iron (Fe), % 75.9 to 82.4
40.3 to 49.2
Manganese (Mn), % 0 to 0.5
0.15 to 1.5
Molybdenum (Mo), % 1.5 to 2.5
0
Nickel (Ni), % 4.5 to 6.5
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 0.5
0.15 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.1 to 0.5
0