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EN 1.8902 Steel vs. EN 1.8961 Steel

Both EN 1.8902 steel and EN 1.8961 steel are iron alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.8902 steel and the bottom bar is EN 1.8961 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
19
Fatigue Strength, MPa 290
150
Impact Strength: V-Notched Charpy, J 58
30
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 380
270
Tensile Strength: Ultimate (UTS), MPa 600
430
Tensile Strength: Yield (Proof), MPa 420
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 44
45
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.6
2.6
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.7
Embodied Energy, MJ/kg 24
23
Embodied Water, L/kg 51
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
70
Resilience: Unit (Modulus of Resilience), kJ/m3 470
130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
15
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 18
13

Alloy Composition

Aluminum (Al), % 0 to 0.015
0 to 0.030
Carbon (C), % 0 to 0.22
0 to 0.16
Chromium (Cr), % 0 to 0.35
0.35 to 0.85
Copper (Cu), % 0 to 0.6
0.2 to 0.6
Iron (Fe), % 95 to 99.05
96.1 to 99.3
Manganese (Mn), % 1.0 to 1.8
0.15 to 0.7
Molybdenum (Mo), % 0 to 0.13
0
Nickel (Ni), % 0 to 0.85
0 to 0.7
Niobium (Nb), % 0 to 0.060
0 to 0.065
Nitrogen (N), % 0 to 0.027
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.65
0 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.035
Titanium (Ti), % 0 to 0.060
0 to 0.12
Vanadium (V), % 0 to 0.22
0 to 0.14