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EN 1.7779 Steel vs. SAE-AISI 12L14 Steel

Both EN 1.7779 steel and SAE-AISI 12L14 steel are iron alloys. They have a very high 95% 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 EN 1.7779 steel and the bottom bar is SAE-AISI 12L14 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
140 to 170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
11 to 25
Fatigue Strength, MPa 430
190 to 290
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 500
280 to 370
Tensile Strength: Ultimate (UTS), MPa 810
440 to 620
Tensile Strength: Yield (Proof), MPa 660
260 to 460

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 470
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 39
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.8
1.4
Embodied Energy, MJ/kg 41
18
Embodied Water, L/kg 64
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
64 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 1150
180 to 560
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
15 to 22
Strength to Weight: Bending, points 25
16 to 20
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 23
14 to 20

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Carbon (C), % 0.17 to 0.23
0 to 0.15
Chromium (Cr), % 3.0 to 3.3
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 93.8 to 95.4
97.9 to 98.7
Lead (Pb), % 0
0.15 to 0.35
Manganese (Mn), % 0.3 to 0.5
0.85 to 1.2
Molybdenum (Mo), % 0.5 to 0.6
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.025
0.040 to 0.090
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.010
0.26 to 0.35
Vanadium (V), % 0.45 to 0.55
0