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EN 1.4901 Stainless Steel vs. SAE-AISI 4028 Steel

Both EN 1.4901 stainless steel and SAE-AISI 4028 steel are iron alloys. They have 89% 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 1.4901 stainless steel and the bottom bar is SAE-AISI 4028 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
14 to 23
Fatigue Strength, MPa 310
180 to 330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 460
310 to 380
Tensile Strength: Ultimate (UTS), MPa 740
490 to 630
Tensile Strength: Yield (Proof), MPa 490
260 to 520

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 650
400
Melting Completion (Liquidus), °C 1490
1460
Melting Onset (Solidus), °C 1450
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 26
49
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 40
19
Embodied Water, L/kg 89
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
81 to 95
Resilience: Unit (Modulus of Resilience), kJ/m3 620
180 to 720
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
17 to 22
Strength to Weight: Bending, points 23
18 to 21
Thermal Diffusivity, mm2/s 6.9
13
Thermal Shock Resistance, points 23
16 to 20

Alloy Composition

Aluminum (Al), % 0 to 0.020
0
Boron (B), % 0.0010 to 0.0060
0
Carbon (C), % 0.070 to 0.13
0.25 to 0.3
Chromium (Cr), % 8.5 to 9.5
0
Iron (Fe), % 85.8 to 89.1
98.1 to 98.7
Manganese (Mn), % 0.3 to 0.6
0.7 to 0.9
Molybdenum (Mo), % 0.3 to 0.6
0.2 to 0.3
Nickel (Ni), % 0 to 0.4
0
Niobium (Nb), % 0.040 to 0.090
0
Nitrogen (N), % 0.030 to 0.070
0
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.5
0.15 to 0.35
Sulfur (S), % 0 to 0.010
0.035 to 0.050
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 1.5 to 2.0
0
Vanadium (V), % 0.15 to 0.25
0
Zirconium (Zr), % 0 to 0.010
0