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EN 1.4669 Stainless Steel vs. SAE-AISI 1049 Steel

Both EN 1.4669 stainless steel and SAE-AISI 1049 steel are iron alloys. They have 71% of their average alloy composition in common. There are 31 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 1.4669 stainless steel and the bottom bar is SAE-AISI 1049 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
200 to 220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
11 to 17
Fatigue Strength, MPa 330
250 to 400
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
72
Shear Strength, MPa 500
420 to 450
Tensile Strength: Ultimate (UTS), MPa 780
680 to 750
Tensile Strength: Yield (Proof), MPa 450
370 to 640

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1030
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 13
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.4
Embodied Energy, MJ/kg 38
18
Embodied Water, L/kg 160
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
75 to 99
Resilience: Unit (Modulus of Resilience), kJ/m3 510
370 to 1090
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
24 to 27
Strength to Weight: Bending, points 24
22 to 23
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 21
22 to 24

Alloy Composition

Carbon (C), % 0 to 0.045
0.46 to 0.53
Chromium (Cr), % 21.5 to 24
0
Copper (Cu), % 1.6 to 3.0
0
Iron (Fe), % 65.2 to 74.8
98.5 to 98.9
Manganese (Mn), % 1.0 to 3.0
0.6 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 1.0 to 3.0
0
Nitrogen (N), % 0.12 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050