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SAE-AISI 9255 Steel vs. EN 1.8819 Steel

Both SAE-AISI 9255 steel and EN 1.8819 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 (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 9255 steel and the bottom bar is EN 1.8819 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 21
27
Fatigue Strength, MPa 270
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 430
280
Tensile Strength: Ultimate (UTS), MPa 680
440
Tensile Strength: Yield (Proof), MPa 390
270

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 46
48
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
2.4
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.6
Embodied Energy, MJ/kg 20
21
Embodied Water, L/kg 46
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
100
Resilience: Unit (Modulus of Resilience), kJ/m3 400
190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
16
Strength to Weight: Bending, points 22
16
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 21
13

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.034
Carbon (C), % 0.51 to 0.59
0 to 0.15
Chromium (Cr), % 0
0 to 0.35
Copper (Cu), % 0
0 to 0.6
Iron (Fe), % 96.2 to 97
95.9 to 99.985
Manganese (Mn), % 0.7 to 1.0
0 to 1.6
Molybdenum (Mo), % 0
0 to 0.13
Nickel (Ni), % 0
0 to 0.35
Niobium (Nb), % 0
0 to 0.060
Nitrogen (N), % 0
0 to 0.017
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 1.8 to 2.2
0 to 0.55
Sulfur (S), % 0 to 0.040
0 to 0.025
Titanium (Ti), % 0
0 to 0.060
Vanadium (V), % 0
0 to 0.1