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EN 1.0044 Steel vs. EN 1.1133 Steel

Both EN 1.0044 steel and EN 1.1133 steel are iron alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.0044 steel and the bottom bar is EN 1.1133 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
19 to 24
Fatigue Strength, MPa 180
230 to 310
Impact Strength: V-Notched Charpy, J 31
45 to 48
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 300
370 to 380
Tensile Strength: Ultimate (UTS), MPa 470
580 to 620
Tensile Strength: Yield (Proof), MPa 250
320 to 460

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 51
49
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
19
Embodied Water, L/kg 47
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 170
270 to 550
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
21 to 22
Strength to Weight: Bending, points 17
20 to 21
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 15
18 to 19

Alloy Composition

Carbon (C), % 0 to 0.25
0.17 to 0.23
Chromium (Cr), % 0
0 to 0.4
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 97.4 to 100
96.9 to 98.8
Manganese (Mn), % 0 to 1.6
1.0 to 1.5
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.4
Nitrogen (N), % 0 to 0.014
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0 to 0.045
0 to 0.035