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SAE-AISI 1108 Steel vs. EN 1.7706 Steel

Both SAE-AISI 1108 steel and EN 1.7706 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1108 steel and the bottom bar is EN 1.7706 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 140
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 23 to 34
17
Fatigue Strength, MPa 170 to 260
330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 380 to 440
690
Tensile Strength: Yield (Proof), MPa 220 to 360
500

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
440
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
40
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
3.7
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
2.3
Embodied Energy, MJ/kg 18
32
Embodied Water, L/kg 46
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 340
670
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13 to 16
24
Strength to Weight: Bending, points 15 to 16
22
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 12 to 14
20

Alloy Composition

Carbon (C), % 0.080 to 0.13
0.15 to 0.2
Chromium (Cr), % 0
1.2 to 1.5
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 98.9 to 99.24
94.7 to 97.1
Manganese (Mn), % 0.6 to 0.8
0.5 to 0.9
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0.080 to 0.13
0 to 0.015
Vanadium (V), % 0
0.2 to 0.3