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EN 1.8945 Steel vs. EN 1.8961 Steel

Both EN 1.8945 steel and EN 1.8961 steel are iron alloys. Both are furnished in the hot worked condition. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.8945 steel and the bottom bar is EN 1.8961 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
19
Fatigue Strength, MPa 260
150
Impact Strength: V-Notched Charpy, J 30
30
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 350
270
Tensile Strength: Ultimate (UTS), MPa 580
430
Tensile Strength: Yield (Proof), MPa 390
220

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
410
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
45
Thermal Expansion, µm/m-K 13
13

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
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.7
Embodied Energy, MJ/kg 19
23
Embodied Water, L/kg 51
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82
70
Resilience: Unit (Modulus of Resilience), kJ/m3 410
130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
15
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 11
12
Thermal Shock Resistance, points 17
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.030
Carbon (C), % 0 to 0.15
0 to 0.16
Chromium (Cr), % 0.25 to 1.4
0.35 to 0.85
Copper (Cu), % 0.2 to 0.6
0.2 to 0.6
Iron (Fe), % 95.1 to 99.5
96.1 to 99.3
Manganese (Mn), % 0 to 1.1
0.15 to 0.7
Nickel (Ni), % 0 to 0.7
0 to 0.7
Niobium (Nb), % 0
0 to 0.065
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0.050 to 0.16
0 to 0.040
Silicon (Si), % 0 to 0.8
0 to 0.45
Sulfur (S), % 0 to 0.040
0 to 0.035
Titanium (Ti), % 0
0 to 0.12
Vanadium (V), % 0
0 to 0.14