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EN 1.5503 Steel vs. EN 1.7380 Steel

Both EN 1.5503 steel and EN 1.7380 steel are iron alloys. They have a very high 97% 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 1.5503 steel and the bottom bar is EN 1.7380 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120 to 160
160 to 170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 17
19 to 20
Fatigue Strength, MPa 180 to 280
200 to 230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 270 to 320
330 to 350
Tensile Strength: Ultimate (UTS), MPa 400 to 520
540 to 550
Tensile Strength: Yield (Proof), MPa 270 to 430
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
460
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 52
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
3.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.8
Embodied Energy, MJ/kg 18
23
Embodied Water, L/kg 46
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41 to 81
87 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 490
230 to 280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 14 to 19
19 to 20
Strength to Weight: Bending, points 15 to 18
19
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 12 to 15
15 to 16

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.16 to 0.2
0.080 to 0.14
Chromium (Cr), % 0
2.0 to 2.5
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 98.4 to 99.239
94.6 to 96.6
Manganese (Mn), % 0.6 to 0.8
0.4 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.1
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.3
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.010