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EN 1.8870 Steel vs. EN 1.6570 Steel

Both EN 1.8870 steel and EN 1.6570 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 31 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 1.8870 steel and the bottom bar is EN 1.6570 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
270 to 340
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
11 to 17
Fatigue Strength, MPa 310
500 to 660
Impact Strength: V-Notched Charpy, J 67
40 to 48
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 610
910 to 1130
Tensile Strength: Yield (Proof), MPa 450
760 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
440
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
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
3.9
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.7
1.7
Embodied Energy, MJ/kg 22
23
Embodied Water, L/kg 50
56

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
120 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 530
1520 to 3010
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
32 to 40
Strength to Weight: Bending, points 20
27 to 31
Thermal Diffusivity, mm2/s 10
11
Thermal Shock Resistance, points 18
27 to 33

Alloy Composition

Boron (B), % 0 to 0.0050
0
Carbon (C), % 0 to 0.18
0.28 to 0.35
Chromium (Cr), % 0 to 0.5
1.0 to 1.4
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 95.1 to 100
94 to 96.2
Manganese (Mn), % 0 to 1.7
0.6 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.3 to 0.5
Nickel (Ni), % 0 to 1.0
1.6 to 2.1
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.015
0
Phosphorus (P), % 0 to 0.025
0 to 0.020
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.015
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.080
0
Zirconium (Zr), % 0 to 0.050
0