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ACI-ASTM CN7MS Steel vs. EN 1.4526 Stainless Steel

Both ACI-ASTM CN7MS steel and EN 1.4526 stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN7MS steel and the bottom bar is EN 1.4526 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
25
Fatigue Strength, MPa 200
230
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 540
540
Tensile Strength: Yield (Proof), MPa 230
330

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Corrosion, °C 420
490
Maximum Temperature: Mechanical, °C 1040
880
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
30
Thermal Expansion, µm/m-K 16
10

Otherwise Unclassified Properties

Base Metal Price, % relative 28
13
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 5.1
2.9
Embodied Energy, MJ/kg 71
41
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 28
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
19
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 3.2
8.1
Thermal Shock Resistance, points 13
19

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.080
Chromium (Cr), % 18 to 20
16 to 18
Copper (Cu), % 1.5 to 2.0
0
Iron (Fe), % 45.4 to 53.5
77.4 to 83.1
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 2.5 to 3.0
0.8 to 1.4
Nickel (Ni), % 22 to 25
0
Niobium (Nb), % 0
0.1 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 2.5 to 3.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015