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EN 1.4807 Stainless Steel vs. SAE-AISI 1090 Steel

Both EN 1.4807 stainless steel and SAE-AISI 1090 steel are iron alloys. They have 43% of their average alloy composition in common. There are 30 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 1.4807 stainless steel and the bottom bar is SAE-AISI 1090 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
220 to 280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.5
11
Fatigue Strength, MPa 120
320 to 380
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
72
Tensile Strength: Ultimate (UTS), MPa 480
790 to 950
Tensile Strength: Yield (Proof), MPa 250
520 to 610

Thermal Properties

Latent Heat of Fusion, J/g 320
240
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1390
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
50
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 39
1.8
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.8
1.4
Embodied Energy, MJ/kg 97
19
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18
82 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 160
730 to 1000
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
28 to 34
Strength to Weight: Bending, points 17
24 to 27
Thermal Diffusivity, mm2/s 3.2
13
Thermal Shock Resistance, points 12
25 to 31

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.85 to 1.0
Chromium (Cr), % 17 to 20
0
Iron (Fe), % 36.6 to 46.7
98 to 98.6
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 34 to 36
0
Niobium (Nb), % 1.0 to 1.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
0
Sulfur (S), % 0 to 0.030
0 to 0.050