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EN 1.8959 Steel vs. EN 1.7219 Steel

Both EN 1.8959 steel and EN 1.7219 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 1.8959 steel and the bottom bar is EN 1.7219 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
19
Fatigue Strength, MPa 220
340
Impact Strength: V-Notched Charpy, J 30
57
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 350
400
Tensile Strength: Ultimate (UTS), MPa 570
650
Tensile Strength: Yield (Proof), MPa 340
490

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
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 39
44
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.7
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.5
Embodied Energy, MJ/kg 21
20
Embodied Water, L/kg 52
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
110
Resilience: Unit (Modulus of Resilience), kJ/m3 300
650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
23
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 10
12
Thermal Shock Resistance, points 17
19

Alloy Composition

Carbon (C), % 0 to 0.19
0.22 to 0.29
Chromium (Cr), % 0.35 to 0.85
0.9 to 1.2
Copper (Cu), % 0.2 to 0.6
0 to 0.3
Iron (Fe), % 94.9 to 99
96.7 to 98.2
Manganese (Mn), % 0.45 to 1.6
0.5 to 0.8
Molybdenum (Mo), % 0 to 0.35
0.15 to 0.3
Nickel (Ni), % 0 to 0.7
0
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.55
0 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.010
Zirconium (Zr), % 0 to 0.17
0