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ACI-ASTM CN7M Steel vs. EN 1.4005 Stainless Steel

Both ACI-ASTM CN7M steel and EN 1.4005 stainless steel are iron alloys. They have 58% 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 ACI-ASTM CN7M steel and the bottom bar is EN 1.4005 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 44
13 to 21
Fatigue Strength, MPa 190
240 to 290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 480
630 to 750
Tensile Strength: Yield (Proof), MPa 200
370 to 500

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Maximum Temperature: Corrosion, °C 430
390
Maximum Temperature: Mechanical, °C 1100
760
Melting Completion (Liquidus), °C 1410
1440
Melting Onset (Solidus), °C 1450
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 21
30
Thermal Expansion, µm/m-K 15
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 32
7.0
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.6
2.0
Embodied Energy, MJ/kg 78
28
Embodied Water, L/kg 210
100

Common Calculations

PREN (Pitting Resistance) 29
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
90 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 110
350 to 650
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
23 to 27
Strength to Weight: Bending, points 17
21 to 24
Thermal Diffusivity, mm2/s 5.6
8.1
Thermal Shock Resistance, points 12
23 to 27

Alloy Composition

Carbon (C), % 0 to 0.070
0.060 to 0.15
Chromium (Cr), % 19 to 22
12 to 14
Copper (Cu), % 3.0 to 4.0
0
Iron (Fe), % 37.4 to 48.5
82.4 to 87.8
Manganese (Mn), % 0 to 1.5
0 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.6
Nickel (Ni), % 27.5 to 30.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0.15 to 0.35