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EN 1.8958 Steel vs. EN 1.8961 Steel

Both EN 1.8958 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 1.8958 steel and the bottom bar is EN 1.8961 steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
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 46
45
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.6
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.7
Embodied Energy, MJ/kg 19
23
Embodied Water, L/kg 50
50

Common Calculations

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

Alloy Composition

Aluminum (Al), % 0
0 to 0.030
Carbon (C), % 0 to 0.16
0 to 0.16
Chromium (Cr), % 0.35 to 0.85
0.35 to 0.85
Copper (Cu), % 0.2 to 0.6
0.2 to 0.6
Iron (Fe), % 96.5 to 99.3
96.1 to 99.3
Manganese (Mn), % 0.15 to 0.7
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 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.45
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