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EN 1.5535 Steel vs. SAE-AISI 9255 Steel

Both EN 1.5535 steel and SAE-AISI 9255 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 EN 1.5535 steel and the bottom bar is SAE-AISI 9255 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130 to 180
200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 22
21
Fatigue Strength, MPa 210 to 320
270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 320 to 370
430
Tensile Strength: Ultimate (UTS), MPa 450 to 1490
680
Tensile Strength: Yield (Proof), MPa 300 to 500
390

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 19
20
Embodied Water, L/kg 48
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 250
120
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 680
400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 16 to 53
24
Strength to Weight: Bending, points 17 to 37
22
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 13 to 44
21

Alloy Composition

Boron (B), % 0.00080 to 0.0050
0
Carbon (C), % 0.2 to 0.25
0.51 to 0.59
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 97.6 to 98.9
96.2 to 97
Manganese (Mn), % 0.9 to 1.2
0.7 to 1.0
Phosphorus (P), % 0 to 0.025
0 to 0.035
Silicon (Si), % 0 to 0.3
1.8 to 2.2
Sulfur (S), % 0 to 0.025
0 to 0.040