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EN 1.4000 Stainless Steel vs. SAE-AISI 4815 Steel

Both EN 1.4000 stainless steel and SAE-AISI 4815 steel are iron alloys. Both are furnished in the annealed condition. They have 87% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4000 stainless steel and the bottom bar is SAE-AISI 4815 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
23
Fatigue Strength, MPa 170
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 320
350
Tensile Strength: Ultimate (UTS), MPa 500
550
Tensile Strength: Yield (Proof), MPa 260
370

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 760
410
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
52
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
6.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
7.6

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
4.3
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.9
1.8
Embodied Energy, MJ/kg 27
24
Embodied Water, L/kg 100
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180
360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 18
20
Strength to Weight: Bending, points 18
19
Thermal Diffusivity, mm2/s 8.1
14
Thermal Shock Resistance, points 18
18

Alloy Composition

Carbon (C), % 0 to 0.080
0.13 to 0.18
Chromium (Cr), % 12 to 14
0
Iron (Fe), % 83.9 to 88
94.7 to 95.9
Manganese (Mn), % 0 to 1.0
0.4 to 0.6
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 0
3.3 to 3.8
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040