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SAE-AISI 4037 Steel vs. EN 1.8509 Steel

Both SAE-AISI 4037 steel and EN 1.8509 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 SAE-AISI 4037 steel and the bottom bar is EN 1.8509 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
340
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23
11
Fatigue Strength, MPa 210
580
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 340
680
Tensile Strength: Ultimate (UTS), MPa 540
1130
Tensile Strength: Yield (Proof), MPa 290
940

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
440
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 48
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.6
Embodied Energy, MJ/kg 19
22
Embodied Water, L/kg 47
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
120
Resilience: Unit (Modulus of Resilience), kJ/m3 220
2340
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
40
Strength to Weight: Bending, points 19
31
Thermal Diffusivity, mm2/s 13
10
Thermal Shock Resistance, points 16
33

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0.35 to 0.4
0.38 to 0.45
Chromium (Cr), % 0
1.5 to 1.8
Iron (Fe), % 98 to 98.6
95.5 to 97.1
Manganese (Mn), % 0.7 to 0.9
0.4 to 0.7
Molybdenum (Mo), % 0.2 to 0.3
0.2 to 0.35
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.035