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EN 1.0034 Steel vs. SAE-AISI 4028 Steel

Both EN 1.0034 steel and SAE-AISI 4028 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is EN 1.0034 steel and the bottom bar is SAE-AISI 4028 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 97 to 110
150 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 9.0 to 32
14 to 23
Fatigue Strength, MPa 140 to 170
180 to 330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 220 to 230
310 to 380
Tensile Strength: Ultimate (UTS), MPa 340 to 380
490 to 630
Tensile Strength: Yield (Proof), MPa 180 to 280
260 to 520

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 53
49
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
19
Embodied Water, L/kg 45
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31 to 95
81 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 84 to 210
180 to 720
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12 to 13
17 to 22
Strength to Weight: Bending, points 14 to 15
18 to 21
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 11 to 12
16 to 20

Alloy Composition

Carbon (C), % 0 to 0.15
0.25 to 0.3
Iron (Fe), % 98.7 to 100
98.1 to 98.7
Manganese (Mn), % 0 to 0.7
0.7 to 0.9
Molybdenum (Mo), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.35
0.15 to 0.35
Sulfur (S), % 0 to 0.045
0.035 to 0.050

Comparable Variants