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EN 1.7201 Steel vs. EN 1.5023 Steel

Both EN 1.7201 steel and EN 1.5023 steel are iron alloys. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.7201 steel and the bottom bar is EN 1.5023 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 160
170 to 440
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 430 to 1300
570 to 1860

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 420
400
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
48
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
1.9
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
19
Embodied Water, L/kg 51
45

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15 to 46
21 to 67
Strength to Weight: Bending, points 16 to 34
20 to 43
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 13 to 38
17 to 56

Alloy Composition

Carbon (C), % 0.1 to 0.15
0.35 to 0.42
Chromium (Cr), % 0.9 to 1.2
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 96.9 to 98.3
96.9 to 97.7
Manganese (Mn), % 0.6 to 0.9
0.5 to 0.8
Molybdenum (Mo), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
1.5 to 1.8
Sulfur (S), % 0 to 0.025
0 to 0.025

Comparable Variants