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EN 1.7706 Steel vs. SAE-AISI 1527 Steel

Both EN 1.7706 steel and SAE-AISI 1527 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 EN 1.7706 steel and the bottom bar is SAE-AISI 1527 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
13 to 21
Fatigue Strength, MPa 330
220 to 350
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 690
590 to 640
Tensile Strength: Yield (Proof), MPa 500
320 to 550

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.3
1.4
Embodied Energy, MJ/kg 32
19
Embodied Water, L/kg 57
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
82 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 670
260 to 800
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
21 to 23
Strength to Weight: Bending, points 22
20 to 21
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 20
19 to 20

Alloy Composition

Carbon (C), % 0.15 to 0.2
0.22 to 0.29
Chromium (Cr), % 1.2 to 1.5
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 94.7 to 97.1
98.1 to 98.6
Manganese (Mn), % 0.5 to 0.9
1.2 to 1.5
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.015
0 to 0.050
Vanadium (V), % 0.2 to 0.3
0