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EN 1.0254 Steel vs. AISI 440B Stainless Steel

Both EN 1.0254 steel and AISI 440B stainless steel are iron alloys. They have 82% 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 1.0254 steel and the bottom bar is AISI 440B stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 27
3.0 to 18
Fatigue Strength, MPa 190
260 to 850
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Shear Strength, MPa 280
460 to 1110
Tensile Strength: Ultimate (UTS), MPa 430
740 to 1930
Tensile Strength: Yield (Proof), MPa 250
430 to 1860

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
870
Melting Completion (Liquidus), °C 1460
1480
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
23
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
9.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.2
Embodied Energy, MJ/kg 19
31
Embodied Water, L/kg 47
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
57 to 110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15
27 to 70
Strength to Weight: Bending, points 16
24 to 45
Thermal Diffusivity, mm2/s 13
6.1
Thermal Shock Resistance, points 14
27 to 70

Alloy Composition

Carbon (C), % 0 to 0.16
0.75 to 1.0
Chromium (Cr), % 0 to 0.3
16 to 18
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 97.2 to 100
78.2 to 83.3
Manganese (Mn), % 0 to 1.2
0 to 1.0
Molybdenum (Mo), % 0 to 0.080
0 to 0.75
Nickel (Ni), % 0 to 0.3
0
Niobium (Nb), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0 to 0.040
0
Vanadium (V), % 0 to 0.020
0