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EN 1.6228 Steel vs. EN 1.6957 Steel

Both EN 1.6228 steel and EN 1.6957 steel are iron alloys. Both are furnished in the quenched and tempered condition. They have a very high 96% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.6228 steel and the bottom bar is EN 1.6957 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
280
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
18
Fatigue Strength, MPa 280
530
Impact Strength: V-Notched Charpy, J 65
71
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 360
570
Tensile Strength: Ultimate (UTS), MPa 570
930
Tensile Strength: Yield (Proof), MPa 390
780

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
450
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 51
47
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
5.0
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.6
2.1
Embodied Energy, MJ/kg 21
29
Embodied Water, L/kg 50
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
160
Resilience: Unit (Modulus of Resilience), kJ/m3 400
1630
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
33
Strength to Weight: Bending, points 19
27
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 17
27

Alloy Composition

Carbon (C), % 0 to 0.18
0.22 to 0.32
Chromium (Cr), % 0
1.2 to 1.8
Iron (Fe), % 96.2 to 97.9
92.7 to 94.7
Manganese (Mn), % 0.8 to 1.5
0.15 to 0.4
Molybdenum (Mo), % 0
0.25 to 0.45
Nickel (Ni), % 1.3 to 1.7
3.4 to 4.0
Phosphorus (P), % 0 to 0.025
0 to 0.010
Silicon (Si), % 0 to 0.35
0 to 0.15
Sulfur (S), % 0 to 0.010
0 to 0.0070
Vanadium (V), % 0 to 0.050
0.050 to 0.15