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EN 1.4859 Stainless Steel vs. ACI-ASTM CA6N Steel

Both EN 1.4859 stainless steel and ACI-ASTM CA6N steel are iron alloys. They have 64% 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 EN 1.4859 stainless steel and the bottom bar is ACI-ASTM CA6N steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
17
Fatigue Strength, MPa 140
640
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
75
Tensile Strength: Ultimate (UTS), MPa 490
1080
Tensile Strength: Yield (Proof), MPa 210
1060

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 560
390
Maximum Temperature: Mechanical, °C 1050
740
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1360
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 13
23
Thermal Expansion, µm/m-K 16
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 36
11
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.2
2.5
Embodied Energy, MJ/kg 88
35
Embodied Water, L/kg 190
110

Common Calculations

PREN (Pitting Resistance) 21
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
180
Resilience: Unit (Modulus of Resilience), kJ/m3 110
2900
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
38
Strength to Weight: Bending, points 17
30
Thermal Diffusivity, mm2/s 3.4
6.1
Thermal Shock Resistance, points 11
40

Alloy Composition

Carbon (C), % 0.050 to 0.15
0 to 0.060
Chromium (Cr), % 19 to 21
10.5 to 12.5
Iron (Fe), % 40.3 to 49
77.9 to 83.5
Manganese (Mn), % 0 to 2.0
0 to 0.5
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 31 to 33
6.0 to 8.0
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0.5 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020