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EN 1.4150 Stainless Steel vs. ACI-ASTM CA6NM Steel

Both EN 1.4150 stainless steel and ACI-ASTM CA6NM 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 CA6NM steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20
17
Fatigue Strength, MPa 270
380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Tensile Strength: Ultimate (UTS), MPa 730
850
Tensile Strength: Yield (Proof), MPa 430
620

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 840
770
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1400
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
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
10
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 2.8
2.5
Embodied Energy, MJ/kg 42
34
Embodied Water, L/kg 120
110

Common Calculations

PREN (Pitting Resistance) 19
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
130
Resilience: Unit (Modulus of Resilience), kJ/m3 470
1000
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
30
Strength to Weight: Bending, points 24
26
Thermal Diffusivity, mm2/s 6.2
6.7
Thermal Shock Resistance, points 27
31

Alloy Composition

Carbon (C), % 0.45 to 0.6
0 to 0.060
Chromium (Cr), % 15 to 16.5
11.5 to 14
Iron (Fe), % 79 to 82.8
78.4 to 84.6
Manganese (Mn), % 0 to 0.8
0 to 1.0
Molybdenum (Mo), % 0.2 to 0.4
0.4 to 1.0
Nickel (Ni), % 0 to 0.4
3.5 to 4.5
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 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Vanadium (V), % 0.2 to 0.4
0