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EN 1.7706 Steel vs. SAE-AISI 1025 Steel

Both EN 1.7706 steel and SAE-AISI 1025 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 1025 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
17 to 28
Fatigue Strength, MPa 330
190 to 280
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 690
450 to 500
Tensile Strength: Yield (Proof), MPa 500
250 to 420

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
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.3
1.4
Embodied Energy, MJ/kg 32
18
Embodied Water, L/kg 57
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
80 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 670
170 to 470
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
16 to 18
Strength to Weight: Bending, points 22
17 to 18
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 20
14 to 16

Alloy Composition

Carbon (C), % 0.15 to 0.2
0.22 to 0.28
Chromium (Cr), % 1.2 to 1.5
0
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 94.7 to 97.1
99.03 to 99.48
Manganese (Mn), % 0.5 to 0.9
0.3 to 0.6
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