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SAE-AISI 1137 Steel vs. EN 1.5535 Steel

Both SAE-AISI 1137 steel and EN 1.5535 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 1137 steel and the bottom bar is EN 1.5535 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
130 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
11 to 22
Fatigue Strength, MPa 250 to 400
210 to 320
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34 to 39
62 to 72
Shear Modulus, GPa 73
73
Shear Strength, MPa 430 to 460
320 to 370
Tensile Strength: Ultimate (UTS), MPa 700 to 760
450 to 1490
Tensile Strength: Yield (Proof), MPa 370 to 650
300 to 500

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
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 51
50
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.2

Otherwise Unclassified Properties

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

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 100
45 to 250
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 1130
240 to 680
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25 to 27
16 to 53
Strength to Weight: Bending, points 22 to 24
17 to 37
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 21 to 23
13 to 44

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.32 to 0.39
0.2 to 0.25
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 97.8 to 98.3
97.6 to 98.9
Manganese (Mn), % 1.4 to 1.7
0.9 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.3
Sulfur (S), % 0.080 to 0.13
0 to 0.025

Comparable Variants