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EN 1.8825 Steel vs. EN 1.8945 Steel

Both EN 1.8825 steel and EN 1.8945 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.8825 steel and the bottom bar is EN 1.8945 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
16
Fatigue Strength, MPa 290
260
Impact Strength: V-Notched Charpy, J 58
30
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 360
350
Tensile Strength: Ultimate (UTS), MPa 570
580
Tensile Strength: Yield (Proof), MPa 420
390

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
420
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 44
42
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 23
19
Embodied Water, L/kg 50
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
82
Resilience: Unit (Modulus of Resilience), kJ/m3 460
410
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
20
Strength to Weight: Bending, points 19
20
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 17
17

Alloy Composition

Aluminum (Al), % 0.015 to 0.054
0
Carbon (C), % 0 to 0.18
0 to 0.15
Chromium (Cr), % 0 to 0.35
0.25 to 1.4
Copper (Cu), % 0 to 0.6
0.2 to 0.6
Iron (Fe), % 95.1 to 99.985
95.1 to 99.5
Manganese (Mn), % 0 to 1.8
0 to 1.1
Molybdenum (Mo), % 0 to 0.23
0
Nickel (Ni), % 0 to 0.85
0 to 0.7
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.027
0 to 0.010
Phosphorus (P), % 0 to 0.035
0.050 to 0.16
Silicon (Si), % 0 to 0.55
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.040
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.14
0