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SAE-AISI 1137 Steel vs. EN 1.8509 Steel

Both SAE-AISI 1137 steel and EN 1.8509 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1137 steel and the bottom bar is EN 1.8509 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
340
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
11
Fatigue Strength, MPa 250 to 400
580
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 430 to 460
680
Tensile Strength: Ultimate (UTS), MPa 700 to 760
1130
Tensile Strength: Yield (Proof), MPa 370 to 650
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 51
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 19
22
Embodied Water, L/kg 48
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 100
120
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 1130
2340
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 27
40
Strength to Weight: Bending, points 22 to 24
31
Thermal Diffusivity, mm2/s 14
10
Thermal Shock Resistance, points 21 to 23
33

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0.32 to 0.39
0.38 to 0.45
Chromium (Cr), % 0
1.5 to 1.8
Iron (Fe), % 97.8 to 98.3
95.5 to 97.1
Manganese (Mn), % 1.4 to 1.7
0.4 to 0.7
Molybdenum (Mo), % 0
0.2 to 0.35
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0.080 to 0.13
0 to 0.035