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ACI-ASTM CN7M Steel vs. EN 1.4501 Stainless Steel

Both ACI-ASTM CN7M steel and EN 1.4501 stainless steel are iron alloys. They have 75% 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 ACI-ASTM CN7M steel and the bottom bar is EN 1.4501 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 44
27
Fatigue Strength, MPa 190
430
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Tensile Strength: Ultimate (UTS), MPa 480
830
Tensile Strength: Yield (Proof), MPa 200
600

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 430
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1450
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 32
22
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 5.6
4.1
Embodied Energy, MJ/kg 78
57
Embodied Water, L/kg 210
180

Common Calculations

PREN (Pitting Resistance) 29
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
210
Resilience: Unit (Modulus of Resilience), kJ/m3 110
870
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
29
Strength to Weight: Bending, points 17
25
Thermal Diffusivity, mm2/s 5.6
4.0
Thermal Shock Resistance, points 12
22

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 19 to 22
24 to 26
Copper (Cu), % 3.0 to 4.0
0.5 to 1.0
Iron (Fe), % 37.4 to 48.5
57.6 to 65.8
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
3.0 to 4.0
Nickel (Ni), % 27.5 to 30.5
6.0 to 8.0
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015
Tungsten (W), % 0
0.5 to 1.0