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EN 1.0034 Steel vs. AISI 418 Stainless Steel

Both EN 1.0034 steel and AISI 418 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 31 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 EN 1.0034 steel and the bottom bar is AISI 418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 97 to 110
330
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 9.0 to 32
17
Fatigue Strength, MPa 140 to 170
520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 220 to 230
680
Tensile Strength: Ultimate (UTS), MPa 340 to 380
1100
Tensile Strength: Yield (Proof), MPa 180 to 280
850

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
770
Melting Completion (Liquidus), °C 1460
1500
Melting Onset (Solidus), °C 1420
1460
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 53
25
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
15
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.4
2.9
Embodied Energy, MJ/kg 18
41
Embodied Water, L/kg 45
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 95
170
Resilience: Unit (Modulus of Resilience), kJ/m3 84 to 210
1830
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12 to 13
38
Strength to Weight: Bending, points 14 to 15
29
Thermal Diffusivity, mm2/s 14
6.7
Thermal Shock Resistance, points 11 to 12
40

Alloy Composition

Carbon (C), % 0 to 0.15
0.15 to 0.2
Chromium (Cr), % 0
12 to 14
Iron (Fe), % 98.7 to 100
78.5 to 83.6
Manganese (Mn), % 0 to 0.7
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
1.8 to 2.2
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.045
0 to 0.030
Tungsten (W), % 0
2.5 to 3.5