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EN 1.4859 Stainless Steel vs. SAE-AISI 4150 Steel

Both EN 1.4859 stainless steel and SAE-AISI 4150 steel are iron alloys. They have 47% of their average alloy composition in common. There are 30 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 EN 1.4859 stainless steel and the bottom bar is SAE-AISI 4150 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
200 to 380
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
12 to 20
Fatigue Strength, MPa 140
260 to 780
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 490
660 to 1310
Tensile Strength: Yield (Proof), MPa 210
380 to 1220

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Maximum Temperature: Mechanical, °C 1050
420
Melting Completion (Liquidus), °C 1410
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 13
42
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.4
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 6.2
1.5
Embodied Energy, MJ/kg 88
20
Embodied Water, L/kg 190
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
82 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 110
380 to 3930
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
24 to 47
Strength to Weight: Bending, points 17
22 to 34
Thermal Diffusivity, mm2/s 3.4
11
Thermal Shock Resistance, points 11
19 to 39

Alloy Composition

Carbon (C), % 0.050 to 0.15
0.48 to 0.53
Chromium (Cr), % 19 to 21
0.8 to 1.1
Iron (Fe), % 40.3 to 49
96.7 to 97.7
Manganese (Mn), % 0 to 2.0
0.75 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.15 to 0.25
Nickel (Ni), % 31 to 33
0
Niobium (Nb), % 0.5 to 1.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0.5 to 1.5
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040