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EN 1.4458 Stainless Steel vs. SAE-AISI 12L14 Steel

Both EN 1.4458 stainless steel and SAE-AISI 12L14 steel are iron alloys. They have 48% of their average alloy composition in common. There are 30 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 1.4458 stainless steel and the bottom bar is SAE-AISI 12L14 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
140 to 170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
11 to 25
Fatigue Strength, MPa 150
190 to 290
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
72
Tensile Strength: Ultimate (UTS), MPa 510
440 to 620
Tensile Strength: Yield (Proof), MPa 190
260 to 460

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
51
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 30
1.8
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.4
1.4
Embodied Energy, MJ/kg 75
18
Embodied Water, L/kg 200
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
64 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 89
180 to 560
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
15 to 22
Strength to Weight: Bending, points 18
16 to 20
Thermal Diffusivity, mm2/s 4.2
14
Thermal Shock Resistance, points 12
14 to 20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 0 to 2.0
0
Iron (Fe), % 40.2 to 53
97.9 to 98.7
Lead (Pb), % 0
0.15 to 0.35
Manganese (Mn), % 0 to 2.0
0.85 to 1.2
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 26 to 30
0
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.035
0.040 to 0.090
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.025
0.26 to 0.35