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EN 1.4525 Stainless Steel vs. ACI-ASTM CT15C Steel

Both EN 1.4525 stainless steel and ACI-ASTM CT15C steel are iron alloys. They have 66% of their average alloy composition in common. There are 31 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 EN 1.4525 stainless steel and the bottom bar is ACI-ASTM CT15C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.6 to 13
23
Fatigue Strength, MPa 480 to 540
130
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 1030 to 1250
500
Tensile Strength: Yield (Proof), MPa 840 to 1120
190

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 430
560
Maximum Temperature: Mechanical, °C 860
1080
Melting Completion (Liquidus), °C 1430
1410
Melting Onset (Solidus), °C 1390
1360
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 18
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.8
6.1
Embodied Energy, MJ/kg 39
88
Embodied Water, L/kg 130
190

Common Calculations

PREN (Pitting Resistance) 18
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 68 to 130
90
Resilience: Unit (Modulus of Resilience), kJ/m3 1820 to 3230
93
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 36 to 45
17
Strength to Weight: Bending, points 29 to 33
17
Thermal Diffusivity, mm2/s 4.7
3.2
Thermal Shock Resistance, points 34 to 41
12

Alloy Composition

Carbon (C), % 0 to 0.070
0.050 to 0.15
Chromium (Cr), % 15 to 17
19 to 21
Copper (Cu), % 2.5 to 4.0
0
Iron (Fe), % 70.4 to 79
40.3 to 49.2
Manganese (Mn), % 0 to 1.0
0.15 to 1.5
Molybdenum (Mo), % 0 to 0.8
0
Nickel (Ni), % 3.5 to 5.5
31 to 34
Niobium (Nb), % 0 to 0.35
0.5 to 1.5
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.8
0.15 to 1.5
Sulfur (S), % 0 to 0.025
0 to 0.030