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EN 1.4571 Stainless Steel vs. SAE-AISI 4150 Steel

Both EN 1.4571 stainless steel and SAE-AISI 4150 steel are iron alloys. They have 69% 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 1.4571 stainless steel and the bottom bar is SAE-AISI 4150 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
200 to 380
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 40
12 to 20
Fatigue Strength, MPa 200 to 330
260 to 780
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 410 to 550
410 to 800
Tensile Strength: Ultimate (UTS), MPa 600 to 900
660 to 1310
Tensile Strength: Yield (Proof), MPa 230 to 570
380 to 1220

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 950
420
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
42
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.9
1.5
Embodied Energy, MJ/kg 54
20
Embodied Water, L/kg 150
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
82 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 820
380 to 3930
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 32
24 to 47
Strength to Weight: Bending, points 20 to 26
22 to 34
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 13 to 20
19 to 39

Alloy Composition

Carbon (C), % 0 to 0.080
0.48 to 0.53
Chromium (Cr), % 16.5 to 18.5
0.8 to 1.1
Iron (Fe), % 61.7 to 71
96.7 to 97.7
Manganese (Mn), % 0 to 2.0
0.75 to 1.0
Molybdenum (Mo), % 2.0 to 2.5
0.15 to 0.25
Nickel (Ni), % 10.5 to 13.5
0
Phosphorus (P), % 0 to 0.045
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
Titanium (Ti), % 0 to 0.7
0