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EN 1.7706 Steel vs. SAE-AISI 4028 Steel

Both EN 1.7706 steel and SAE-AISI 4028 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 (3, 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 4028 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
150 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17
14 to 23
Fatigue Strength, MPa 330
180 to 330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 690
490 to 630
Tensile Strength: Yield (Proof), MPa 500
260 to 520

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
49
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
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.3
1.5
Embodied Energy, MJ/kg 32
19
Embodied Water, L/kg 57
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
81 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 670
180 to 720
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
17 to 22
Strength to Weight: Bending, points 22
18 to 21
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 20
16 to 20

Alloy Composition

Carbon (C), % 0.15 to 0.2
0.25 to 0.3
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 98.7
Manganese (Mn), % 0.5 to 0.9
0.7 to 0.9
Molybdenum (Mo), % 0.9 to 1.1
0.2 to 0.3
Nickel (Ni), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.6
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0.035 to 0.050
Vanadium (V), % 0.2 to 0.3
0