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EN 1.4034 Stainless Steel vs. ACI-ASTM CN7MS Steel

Both EN 1.4034 stainless steel and ACI-ASTM CN7MS steel are iron alloys. They have 64% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4034 stainless steel and the bottom bar is ACI-ASTM CN7MS steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 14
39
Fatigue Strength, MPa 230 to 400
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 690 to 900
540
Tensile Strength: Yield (Proof), MPa 390 to 730
230

Thermal Properties

Latent Heat of Fusion, J/g 270
340
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 770
1040
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1390
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 30
12
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
28
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
5.1
Embodied Energy, MJ/kg 27
71
Embodied Water, L/kg 100
180

Common Calculations

PREN (Pitting Resistance) 14
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 94
170
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1370
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 32
19
Strength to Weight: Bending, points 22 to 27
19
Thermal Diffusivity, mm2/s 8.1
3.2
Thermal Shock Resistance, points 24 to 32
13

Alloy Composition

Carbon (C), % 0.43 to 0.5
0 to 0.070
Chromium (Cr), % 12.5 to 14.5
18 to 20
Copper (Cu), % 0
1.5 to 2.0
Iron (Fe), % 83 to 87.1
45.4 to 53.5
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0
22 to 25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
2.5 to 3.5
Sulfur (S), % 0 to 0.015
0 to 0.030