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EN 1.4807 Stainless Steel vs. SAE-AISI 1021 Steel

Both EN 1.4807 stainless steel and SAE-AISI 1021 steel are iron alloys. They have 43% 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 1.4807 stainless steel and the bottom bar is SAE-AISI 1021 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
130 to 150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.5
17 to 27
Fatigue Strength, MPa 120
190 to 300
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
73
Tensile Strength: Ultimate (UTS), MPa 480
480 to 530
Tensile Strength: Yield (Proof), MPa 250
260 to 450

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1390
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
52
Thermal Expansion, µm/m-K 15
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 39
1.8
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 6.8
1.4
Embodied Energy, MJ/kg 97
18
Embodied Water, L/kg 190
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 18
84 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 160
180 to 530
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
17 to 19
Strength to Weight: Bending, points 17
17 to 18
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 12
15 to 17

Alloy Composition

Carbon (C), % 0.3 to 0.5
0.18 to 0.23
Chromium (Cr), % 17 to 20
0
Iron (Fe), % 36.6 to 46.7
98.8 to 99.22
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 34 to 36
0
Niobium (Nb), % 1.0 to 1.8
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 1.0 to 2.5
0
Sulfur (S), % 0 to 0.030
0 to 0.050