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ACI-ASTM CN7M Steel vs. EN 1.4477 Stainless Steel

Both ACI-ASTM CN7M steel and EN 1.4477 stainless steel are iron alloys. They have 74% 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 1.4477 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
270
Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 44
22 to 23
Fatigue Strength, MPa 190
420 to 490
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 480
880 to 930
Tensile Strength: Yield (Proof), MPa 200
620 to 730

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 430
460
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1450
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 21
13
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
20
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.6
3.7
Embodied Energy, MJ/kg 78
52
Embodied Water, L/kg 210
190

Common Calculations

PREN (Pitting Resistance) 29
41
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
180 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 110
940 to 1290
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
31 to 33
Strength to Weight: Bending, points 17
26 to 27
Thermal Diffusivity, mm2/s 5.6
3.5
Thermal Shock Resistance, points 12
23 to 25

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 19 to 22
28 to 30
Copper (Cu), % 3.0 to 4.0
0 to 0.8
Iron (Fe), % 37.4 to 48.5
56.6 to 63.6
Manganese (Mn), % 0 to 1.5
0.8 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
1.5 to 2.6
Nickel (Ni), % 27.5 to 30.5
5.8 to 7.5
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.015