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EN 1.0259 Steel vs. EN 1.8945 Steel

Both EN 1.0259 steel and EN 1.8945 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 1.0259 steel and the bottom bar is EN 1.8945 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
16
Fatigue Strength, MPa 200
260
Impact Strength: V-Notched Charpy, J 38
30
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 310
350
Tensile Strength: Ultimate (UTS), MPa 490
580
Tensile Strength: Yield (Proof), MPa 280
390

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
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 49
42
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.5
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 49
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
82
Resilience: Unit (Modulus of Resilience), kJ/m3 210
410
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
20
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 15
17

Alloy Composition

Aluminum (Al), % 0.020 to 0.2
0
Carbon (C), % 0 to 0.2
0 to 0.15
Chromium (Cr), % 0 to 0.3
0.25 to 1.4
Copper (Cu), % 0 to 0.3
0.2 to 0.6
Iron (Fe), % 96.7 to 99.98
95.1 to 99.5
Manganese (Mn), % 0 to 1.4
0 to 1.1
Molybdenum (Mo), % 0 to 0.080
0
Nickel (Ni), % 0 to 0.3
0 to 0.7
Niobium (Nb), % 0 to 0.010
0
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.025
0.050 to 0.16
Silicon (Si), % 0 to 0.4
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.040
Titanium (Ti), % 0 to 0.040
0
Vanadium (V), % 0 to 0.020
0