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SAE-AISI 4047 Steel vs. EN 1.4435 Stainless Steel

Both SAE-AISI 4047 steel and EN 1.4435 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4047 steel and the bottom bar is EN 1.4435 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
43
Fatigue Strength, MPa 220
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 370
420
Tensile Strength: Ultimate (UTS), MPa 580
610
Tensile Strength: Yield (Proof), MPa 310
240

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
980
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
21
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
4.1
Embodied Energy, MJ/kg 19
57
Embodied Water, L/kg 47
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
210
Resilience: Unit (Modulus of Resilience), kJ/m3 260
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0.45 to 0.5
0 to 0.030
Chromium (Cr), % 0
17 to 19
Iron (Fe), % 97.9 to 98.5
59.8 to 68
Manganese (Mn), % 0.7 to 0.9
0 to 2.0
Molybdenum (Mo), % 0.2 to 0.3
2.5 to 3.0
Nickel (Ni), % 0
12.5 to 15
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015