MakeItFrom.com
Menu (ESC)

EN 1.7720 Steel vs. EN 1.1147 Steel

Both EN 1.7720 steel and EN 1.1147 steel are iron alloys. They have a very high 99% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.7720 steel and the bottom bar is EN 1.1147 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
110 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
12 to 17
Fatigue Strength, MPa 230
180 to 250
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 590
390 to 470
Tensile Strength: Yield (Proof), MPa 340
280 to 370

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
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
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.4
Embodied Energy, MJ/kg 30
18
Embodied Water, L/kg 51
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97
40 to 73
Resilience: Unit (Modulus of Resilience), kJ/m3 300
210 to 370
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
14 to 17
Strength to Weight: Bending, points 20
15 to 17
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 17
12 to 15

Alloy Composition

Carbon (C), % 0.1 to 0.15
0.15 to 0.19
Chromium (Cr), % 0.3 to 0.5
0
Copper (Cu), % 0 to 0.3
0 to 0.25
Iron (Fe), % 96.6 to 98.6
98.3 to 99.25
Manganese (Mn), % 0.4 to 0.7
0.6 to 0.9
Molybdenum (Mo), % 0.4 to 0.6
0
Nickel (Ni), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 0.45
0 to 0.3
Sulfur (S), % 0 to 0.020
0 to 0.025
Vanadium (V), % 0.22 to 0.3
0