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EN 1.8901 Steel vs. EN 1.7710 Steel

Both EN 1.8901 steel and EN 1.7710 steel are iron alloys. They have a very high 98% 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 1.8901 steel and the bottom bar is EN 1.7710 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
280 to 320
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
6.8 to 11
Fatigue Strength, MPa 340
500 to 620
Impact Strength: V-Notched Charpy, J 58
30
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 630
930 to 1070
Tensile Strength: Yield (Proof), MPa 490
800 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 410
440
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 44
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
3.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
2.2
Embodied Energy, MJ/kg 24
30
Embodied Water, L/kg 51
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
73 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 640
1680 to 2970
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
33 to 38
Strength to Weight: Bending, points 21
27 to 30
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 18
27 to 31

Alloy Composition

Aluminum (Al), % 0 to 0.015
0
Carbon (C), % 0 to 0.22
0.12 to 0.18
Chromium (Cr), % 0 to 0.35
1.3 to 1.8
Copper (Cu), % 0 to 0.6
0
Iron (Fe), % 95 to 99.05
95.1 to 97
Manganese (Mn), % 1.0 to 1.8
0.6 to 1.0
Molybdenum (Mo), % 0 to 0.13
0.8 to 1.0
Nickel (Ni), % 0 to 0.85
0
Niobium (Nb), % 0 to 0.060
0
Nitrogen (N), % 0 to 0.027
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0 to 0.65
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.060
0
Vanadium (V), % 0 to 0.22
0.15 to 0.25