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EN 1.4646 Stainless Steel vs. SAE-AISI 4150 Steel

Both EN 1.4646 stainless steel and SAE-AISI 4150 steel are iron alloys. They have 66% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4646 stainless steel and the bottom bar is SAE-AISI 4150 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
200 to 380
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
12 to 20
Fatigue Strength, MPa 340
260 to 780
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 500
410 to 800
Tensile Strength: Ultimate (UTS), MPa 750
660 to 1310
Tensile Strength: Yield (Proof), MPa 430
380 to 1220

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 910
420
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1340
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 17
13

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 41
20
Embodied Water, L/kg 160
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
82 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 460
380 to 3930
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 27
24 to 47
Strength to Weight: Bending, points 24
22 to 34
Thermal Shock Resistance, points 16
19 to 39

Alloy Composition

Carbon (C), % 0.020 to 0.1
0.48 to 0.53
Chromium (Cr), % 17 to 19
0.8 to 1.1
Copper (Cu), % 1.5 to 3.0
0
Iron (Fe), % 59 to 67.3
96.7 to 97.7
Manganese (Mn), % 10.5 to 12.5
0.75 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.15 to 0.25
Nickel (Ni), % 3.5 to 4.5
0
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.050
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