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SAE-AISI 5135 Steel vs. EN 1.8945 Steel

Both SAE-AISI 5135 steel and EN 1.8945 steel are iron alloys. Their average alloy composition is basically identical. 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 5135 steel and the bottom bar is EN 1.8945 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
16
Fatigue Strength, MPa 240
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 320
350
Tensile Strength: Ultimate (UTS), MPa 510
580
Tensile Strength: Yield (Proof), MPa 340
390

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
420
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 45
42
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 50
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
82
Resilience: Unit (Modulus of Resilience), kJ/m3 300
410
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 18
20
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 16
17

Alloy Composition

Carbon (C), % 0.33 to 0.38
0 to 0.15
Chromium (Cr), % 0.8 to 1.1
0.25 to 1.4
Copper (Cu), % 0
0.2 to 0.6
Iron (Fe), % 97.3 to 98.1
95.1 to 99.5
Manganese (Mn), % 0.6 to 0.8
0 to 1.1
Nickel (Ni), % 0
0 to 0.7
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.035
0.050 to 0.16
Silicon (Si), % 0.15 to 0.35
0 to 0.8
Sulfur (S), % 0 to 0.040
0 to 0.040