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ACI-ASTM CA6N Steel vs. EN 1.4317 Stainless Steel

Both ACI-ASTM CA6N steel and EN 1.4317 stainless steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 31 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 ACI-ASTM CA6N steel and the bottom bar is EN 1.4317 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
17
Fatigue Strength, MPa 640
380
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 1080
860
Tensile Strength: Yield (Proof), MPa 1060
630

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 390
390
Maximum Temperature: Mechanical, °C 740
770
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 23
26
Thermal Expansion, µm/m-K 9.9
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 11
10
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.5
2.4
Embodied Energy, MJ/kg 35
33
Embodied Water, L/kg 110
110

Common Calculations

PREN (Pitting Resistance) 12
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
130
Resilience: Unit (Modulus of Resilience), kJ/m3 2900
1010
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 38
31
Strength to Weight: Bending, points 30
26
Thermal Diffusivity, mm2/s 6.1
7.0
Thermal Shock Resistance, points 40
30

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.060
Chromium (Cr), % 10.5 to 12.5
12 to 13.5
Iron (Fe), % 77.9 to 83.5
78.7 to 84.5
Manganese (Mn), % 0 to 0.5
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.7
Nickel (Ni), % 6.0 to 8.0
3.5 to 5.0
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.025