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EN 1.1203 Steel vs. EN 1.7767 Steel

Both EN 1.1203 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 (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.1203 steel and the bottom bar is EN 1.7767 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 230
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 15
20
Fatigue Strength, MPa 210 to 310
320 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
74
Shear Strength, MPa 420 to 480
420 to 430
Tensile Strength: Ultimate (UTS), MPa 690 to 780
670 to 690
Tensile Strength: Yield (Proof), MPa 340 to 480
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 48
40
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
4.5
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
2.4
Embodied Energy, MJ/kg 19
33
Embodied Water, L/kg 47
64

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 69 to 100
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 610
570 to 650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 28
24
Strength to Weight: Bending, points 22 to 24
22
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 22 to 25
19 to 20

Alloy Composition

Carbon (C), % 0.52 to 0.6
0.1 to 0.15
Chromium (Cr), % 0 to 0.4
2.8 to 3.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 97.1 to 98.9
93.8 to 95.8
Manganese (Mn), % 0.6 to 0.9
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.1
0.9 to 1.1
Nickel (Ni), % 0 to 0.4
0 to 0.25
Niobium (Nb), % 0
0 to 0.070
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0 to 0.4
0 to 0.15
Sulfur (S), % 0 to 0.035
0 to 0.0050
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0.2 to 0.3

Comparable Variants