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EN 1.0348 Steel vs. EN 1.1181 Steel

Both EN 1.0348 steel and EN 1.1181 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.0348 steel and the bottom bar is EN 1.1181 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 28
19 to 20
Fatigue Strength, MPa 160
190 to 260
Impact Strength: V-Notched Charpy, J 38
23 to 38
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 250
350 to 390
Tensile Strength: Ultimate (UTS), MPa 380
560 to 620
Tensile Strength: Yield (Proof), MPa 220
280 to 380

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
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 50
42
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 48
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91
90 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 130
210 to 380
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13
20 to 22
Strength to Weight: Bending, points 15
19 to 21
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 12
19 to 21

Alloy Composition

Aluminum (Al), % 0.020 to 0.2
0
Carbon (C), % 0 to 0.13
0.32 to 0.39
Chromium (Cr), % 0 to 0.3
0 to 0.4
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 97.5 to 99.98
97.4 to 99.18
Manganese (Mn), % 0 to 0.7
0.5 to 0.8
Molybdenum (Mo), % 0 to 0.080
0 to 0.1
Nickel (Ni), % 0 to 0.3
0 to 0.4
Niobium (Nb), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.010
0 to 0.035
Titanium (Ti), % 0 to 0.040
0
Vanadium (V), % 0 to 0.020
0