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EN 1.4005 Stainless Steel vs. ACI-ASTM CN7M Steel

Both EN 1.4005 stainless steel and ACI-ASTM CN7M 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 EN 1.4005 stainless steel and the bottom bar is ACI-ASTM CN7M steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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