MakeItFrom.com
Menu (ESC)

EN 1.4418 Stainless Steel vs. ACI-ASTM CN7MS Steel

Both EN 1.4418 stainless steel and ACI-ASTM CN7MS steel are iron alloys. They have 73% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4418 stainless steel and the bottom bar is ACI-ASTM CN7MS steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16 to 20
39
Fatigue Strength, MPa 350 to 480
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 860 to 1000
540
Tensile Strength: Yield (Proof), MPa 540 to 790
230

Thermal Properties

Latent Heat of Fusion, J/g 280
340
Maximum Temperature: Corrosion, °C 410
420
Maximum Temperature: Mechanical, °C 870
1040
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1400
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 10
16

Otherwise Unclassified Properties

Base Metal Price, % relative 13
28
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.8
5.1
Embodied Energy, MJ/kg 39
71
Embodied Water, L/kg 130
180

Common Calculations

PREN (Pitting Resistance) 20
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 170
170
Resilience: Unit (Modulus of Resilience), kJ/m3 730 to 1590
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 31 to 36
19
Strength to Weight: Bending, points 26 to 28
19
Thermal Diffusivity, mm2/s 4.0
3.2
Thermal Shock Resistance, points 31 to 36
13

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.070
Chromium (Cr), % 15 to 17
18 to 20
Copper (Cu), % 0
1.5 to 2.0
Iron (Fe), % 73.2 to 80.2
45.4 to 53.5
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 0.8 to 1.5
2.5 to 3.0
Nickel (Ni), % 4.0 to 6.0
22 to 25
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.7
2.5 to 3.5
Sulfur (S), % 0 to 0.015
0 to 0.030