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EN 1.1122 Steel vs. EN 1.7767 Steel

Both EN 1.1122 steel and EN 1.7767 steel are iron alloys. They have a very high 96% 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 1.1122 steel and the bottom bar is EN 1.7767 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 130
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 21
20
Fatigue Strength, MPa 170 to 260
320 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 240 to 290
420 to 430
Tensile Strength: Ultimate (UTS), MPa 340 to 460
670 to 690
Tensile Strength: Yield (Proof), MPa 240 to 370
460 to 500

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
480
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
40
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
4.5
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
2.4
Embodied Energy, MJ/kg 18
33
Embodied Water, L/kg 46
64

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 89
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 360
570 to 650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12 to 16
24
Strength to Weight: Bending, points 14 to 17
22
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 11 to 15
19 to 20

Alloy Composition

Carbon (C), % 0.080 to 0.12
0.1 to 0.15
Chromium (Cr), % 0
2.8 to 3.3
Copper (Cu), % 0 to 0.25
0 to 0.25
Iron (Fe), % 98.7 to 99.62
93.8 to 95.8
Manganese (Mn), % 0.3 to 0.6
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.25
Niobium (Nb), % 0
0 to 0.070
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 0.3
0 to 0.15
Sulfur (S), % 0 to 0.025
0 to 0.0050
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0.2 to 0.3