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EN 1.0303 Steel vs. EN 1.7380 Steel

Both EN 1.0303 steel and EN 1.7380 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 (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.0303 steel and the bottom bar is EN 1.7380 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 84 to 120
160 to 170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 25
19 to 20
Fatigue Strength, MPa 150 to 230
200 to 230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 220 to 260
330 to 350
Tensile Strength: Ultimate (UTS), MPa 290 to 410
540 to 550
Tensile Strength: Yield (Proof), MPa 200 to 320
290 to 330

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
460
Melting Completion (Liquidus), °C 1470
1470
Melting Onset (Solidus), °C 1430
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 53
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
3.8
Density, g/cm3 7.9
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 30 to 94
87 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 270
230 to 280
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 10 to 15
19 to 20
Strength to Weight: Bending, points 12 to 16
19
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 9.2 to 13
15 to 16

Alloy Composition

Aluminum (Al), % 0.020 to 0.060
0
Carbon (C), % 0.020 to 0.060
0.080 to 0.14
Chromium (Cr), % 0
2.0 to 2.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 99.335 to 99.71
94.6 to 96.6
Manganese (Mn), % 0.25 to 0.4
0.4 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.1
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.020
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.5
Sulfur (S), % 0 to 0.025
0 to 0.010