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EN 1.7376 Steel vs. SAE-AISI 4620 Steel

Both EN 1.7376 steel and SAE-AISI 4620 steel are iron alloys. They have 90% of their average alloy composition in common. There are 30 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 1.7376 steel and the bottom bar is SAE-AISI 4620 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
150 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
16 to 27
Fatigue Strength, MPa 320
260 to 360
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 710
490 to 680
Tensile Strength: Yield (Proof), MPa 460
350 to 550

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 600
410
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
47
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 11
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
3.2
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.1
1.6
Embodied Energy, MJ/kg 29
22
Embodied Water, L/kg 88
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
100 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 560
330 to 800
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
17 to 24
Strength to Weight: Bending, points 23
18 to 22
Thermal Diffusivity, mm2/s 6.9
13
Thermal Shock Resistance, points 20
15 to 20

Alloy Composition

Carbon (C), % 0.12 to 0.19
0.17 to 0.22
Chromium (Cr), % 8.0 to 10
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 86.2 to 90.6
96.4 to 97.4
Manganese (Mn), % 0.35 to 0.65
0.45 to 0.65
Molybdenum (Mo), % 0.9 to 1.2
0.2 to 0.3
Nickel (Ni), % 0 to 0.4
1.7 to 2.0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040
Vanadium (V), % 0 to 0.050
0