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ACI-ASTM CA6NM Steel vs. EN 1.4959 Stainless Steel

Both ACI-ASTM CA6NM steel and EN 1.4959 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CA6NM steel and the bottom bar is EN 1.4959 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
40
Fatigue Strength, MPa 380
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 850
630
Tensile Strength: Yield (Proof), MPa 620
190

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
510
Maximum Temperature: Mechanical, °C 770
1090
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1400
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
12
Thermal Expansion, µm/m-K 10
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.2
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 10
31
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.5
5.4
Embodied Energy, MJ/kg 34
76
Embodied Water, L/kg 110
200

Common Calculations

PREN (Pitting Resistance) 15
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
190
Resilience: Unit (Modulus of Resilience), kJ/m3 1000
96
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
22
Strength to Weight: Bending, points 26
20
Thermal Diffusivity, mm2/s 6.7
3.2
Thermal Shock Resistance, points 31
15

Alloy Composition

Aluminum (Al), % 0
0.25 to 0.65
Carbon (C), % 0 to 0.060
0.050 to 0.1
Chromium (Cr), % 11.5 to 14
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 78.4 to 84.6
39.4 to 50.5
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 0.4 to 1.0
0
Nickel (Ni), % 3.5 to 4.5
30 to 34
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0.25 to 0.65