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EN 1.8945 Steel vs. EN 1.0490 Steel

Both EN 1.8945 steel and EN 1.0490 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 1.8945 steel and the bottom bar is EN 1.0490 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
26
Fatigue Strength, MPa 260
210
Impact Strength: V-Notched Charpy, J 30
48
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 350
280
Tensile Strength: Ultimate (UTS), MPa 580
440
Tensile Strength: Yield (Proof), MPa 390
280

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
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 42
47
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.6
Embodied Energy, MJ/kg 19
21
Embodied Water, L/kg 51
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82
100
Resilience: Unit (Modulus of Resilience), kJ/m3 410
210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
16
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 17
14

Alloy Composition

Aluminum (Al), % 0
0 to 0.015
Carbon (C), % 0 to 0.15
0 to 0.2
Chromium (Cr), % 0.25 to 1.4
0 to 0.35
Copper (Cu), % 0.2 to 0.6
0 to 0.6
Iron (Fe), % 95.1 to 99.5
96 to 99.55
Manganese (Mn), % 0 to 1.1
0.45 to 1.6
Molybdenum (Mo), % 0
0 to 0.13
Nickel (Ni), % 0 to 0.7
0 to 0.35
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0 to 0.010
0 to 0.017
Phosphorus (P), % 0.050 to 0.16
0 to 0.035
Silicon (Si), % 0 to 0.8
0 to 0.45
Sulfur (S), % 0 to 0.040
0 to 0.030
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.070