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EN 1.4150 Stainless Steel vs. ACI-ASTM CA15 Steel

Both EN 1.4150 stainless steel and ACI-ASTM CA15 steel are iron alloys. They have a very high 95% of their average alloy composition in common. There are 32 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 EN 1.4150 stainless steel and the bottom bar is ACI-ASTM CA15 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
21
Fatigue Strength, MPa 270
370
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 730
700
Tensile Strength: Yield (Proof), MPa 430
570

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 840
750
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1500
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 23
25
Thermal Expansion, µm/m-K 10
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
7.5
Density, g/cm3 7.6
7.7
Embodied Carbon, kg CO2/kg material 2.8
2.0
Embodied Energy, MJ/kg 42
28
Embodied Water, L/kg 120
100

Common Calculations

PREN (Pitting Resistance) 19
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
140
Resilience: Unit (Modulus of Resilience), kJ/m3 470
820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
25
Strength to Weight: Bending, points 24
23
Thermal Diffusivity, mm2/s 6.2
6.7
Thermal Shock Resistance, points 27
26

Alloy Composition

Carbon (C), % 0.45 to 0.6
0 to 0.15
Chromium (Cr), % 15 to 16.5
11.5 to 14
Iron (Fe), % 79 to 82.8
81.8 to 88.5
Manganese (Mn), % 0 to 0.8
0 to 1.0
Molybdenum (Mo), % 0.2 to 0.4
0 to 0.5
Nickel (Ni), % 0 to 0.4
0 to 1.0
Nitrogen (N), % 0.050 to 0.2
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 1.3 to 1.7
0 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.040
Vanadium (V), % 0.2 to 0.4
0