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EN 1.6956 Steel vs. EN 1.0258 Steel

Both EN 1.6956 steel and EN 1.0258 steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.6956 steel and the bottom bar is EN 1.0258 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 370
140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 9.6
23
Fatigue Strength, MPa 680
200
Impact Strength: V-Notched Charpy, J 25
38
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 730
310
Tensile Strength: Ultimate (UTS), MPa 1230
490
Tensile Strength: Yield (Proof), MPa 1120
290

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
400
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
49
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
2.1
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.2
1.5
Embodied Energy, MJ/kg 31
19
Embodied Water, L/kg 60
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
95
Resilience: Unit (Modulus of Resilience), kJ/m3 3320
220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 43
17
Strength to Weight: Bending, points 32
18
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 36
16

Alloy Composition

Carbon (C), % 0.28 to 0.38
0 to 0.2
Chromium (Cr), % 1.0 to 1.7
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 92.4 to 95.3
96.9 to 100
Manganese (Mn), % 0.15 to 0.4
0 to 1.4
Molybdenum (Mo), % 0.3 to 0.6
0 to 0.080
Nickel (Ni), % 2.9 to 3.8
0 to 0.3
Niobium (Nb), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.020
Titanium (Ti), % 0
0 to 0.040
Vanadium (V), % 0.080 to 0.25
0 to 0.020