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EN 1.5521 Steel vs. EN 1.7390 Steel

Both EN 1.5521 steel and EN 1.7390 steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 32 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 1.5521 steel and the bottom bar is EN 1.7390 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 180
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 21
16
Fatigue Strength, MPa 210 to 310
310
Poisson's Ratio 0.29
0.29
Reduction in Area, % 59 to 72
50
Shear Modulus, GPa 73
74
Shear Strength, MPa 310 to 360
440
Tensile Strength: Ultimate (UTS), MPa 430 to 1390
710
Tensile Strength: Yield (Proof), MPa 300 to 490
480

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
510
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
4.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.7
Embodied Energy, MJ/kg 19
23
Embodied Water, L/kg 47
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 44 to 230
100
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 630
600
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 15 to 49
25
Strength to Weight: Bending, points 16 to 35
23
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 13 to 41
20

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.16 to 0.2
0 to 0.18
Chromium (Cr), % 0
4.0 to 6.0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98 to 98.9
91.9 to 95.3
Manganese (Mn), % 0.9 to 1.2
0.3 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
0 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.015