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ACI-ASTM CN7MS Steel vs. EN 1.4011 Stainless Steel

Both ACI-ASTM CN7MS steel and EN 1.4011 stainless steel are iron alloys. They have 64% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN7MS steel and the bottom bar is EN 1.4011 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
17
Fatigue Strength, MPa 200
310
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 540
700
Tensile Strength: Yield (Proof), MPa 230
510

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 1040
750
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1350
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
25
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 28
7.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 5.1
2.0
Embodied Energy, MJ/kg 71
28
Embodied Water, L/kg 180
100

Common Calculations

PREN (Pitting Resistance) 28
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
25
Strength to Weight: Bending, points 19
23
Thermal Diffusivity, mm2/s 3.2
6.7
Thermal Shock Resistance, points 13
24

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.15
Chromium (Cr), % 18 to 20
11.5 to 13.5
Copper (Cu), % 1.5 to 2.0
0
Iron (Fe), % 45.4 to 53.5
82.8 to 88.5
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.0
0 to 0.5
Nickel (Ni), % 22 to 25
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 2.5 to 3.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.025