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EN 1.7767 Steel vs. EN 1.0425 Steel

Both EN 1.7767 steel and EN 1.0425 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.7767 steel and the bottom bar is EN 1.0425 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
24
Fatigue Strength, MPa 320 to 340
190
Impact Strength: V-Notched Charpy, J 46
44
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
73
Shear Strength, MPa 420 to 430
300
Tensile Strength: Ultimate (UTS), MPa 670 to 690
470
Tensile Strength: Yield (Proof), MPa 460 to 500
260

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 480
400
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
50
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 4.5
2.2
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.5
Embodied Energy, MJ/kg 33
20
Embodied Water, L/kg 64
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 130
98
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 650
180
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
17
Strength to Weight: Bending, points 22
17
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 19 to 20
15

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.024
Carbon (C), % 0.1 to 0.15
0 to 0.2
Chromium (Cr), % 2.8 to 3.3
0 to 0.3
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 93.8 to 95.8
96.9 to 99.18
Manganese (Mn), % 0.3 to 0.6
0.8 to 1.4
Molybdenum (Mo), % 0.9 to 1.1
0 to 0.080
Nickel (Ni), % 0 to 0.25
0 to 0.3
Niobium (Nb), % 0 to 0.070
0 to 0.020
Nitrogen (N), % 0 to 0.012
0 to 0.012
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 0.15
0 to 0.4
Sulfur (S), % 0 to 0.0050
0 to 0.010
Titanium (Ti), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0.2 to 0.3
0 to 0.020