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EN 1.4469 Stainless Steel vs. SAE-AISI 4047 Steel

Both EN 1.4469 stainless steel and SAE-AISI 4047 steel are iron alloys. They have 62% 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 1.4469 stainless steel and the bottom bar is SAE-AISI 4047 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 25
23
Fatigue Strength, MPa 380
220
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
73
Tensile Strength: Ultimate (UTS), MPa 740
580
Tensile Strength: Yield (Proof), MPa 550
310

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
48
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 21
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 4.1
1.5
Embodied Energy, MJ/kg 57
19
Embodied Water, L/kg 180
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
110
Resilience: Unit (Modulus of Resilience), kJ/m3 730
260
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
20
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 4.6
13
Thermal Shock Resistance, points 20
18

Alloy Composition

Carbon (C), % 0 to 0.030
0.45 to 0.5
Chromium (Cr), % 25 to 27
0
Copper (Cu), % 0 to 1.3
0
Iron (Fe), % 56.4 to 65.9
97.9 to 98.5
Manganese (Mn), % 0 to 1.0
0.7 to 0.9
Molybdenum (Mo), % 3.0 to 5.0
0.2 to 0.3
Nickel (Ni), % 6.0 to 8.0
0
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.040