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EN 1.4597 Stainless Steel vs. SAE-AISI 1021 Steel

Both EN 1.4597 stainless steel and SAE-AISI 1021 steel are iron alloys. They have 71% of their average alloy composition in common. There are 31 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 1.4597 stainless steel and the bottom bar is SAE-AISI 1021 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
130 to 150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 45
17 to 27
Fatigue Strength, MPa 300
190 to 300
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 470
310 to 320
Tensile Strength: Ultimate (UTS), MPa 680
480 to 530
Tensile Strength: Yield (Proof), MPa 330
260 to 450

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 860
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.8
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.5
1.4
Embodied Energy, MJ/kg 36
18
Embodied Water, L/kg 140
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
84 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 280
180 to 530
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
17 to 19
Strength to Weight: Bending, points 22
17 to 18
Thermal Diffusivity, mm2/s 4.1
14
Thermal Shock Resistance, points 15
15 to 17

Alloy Composition

Carbon (C), % 0 to 0.1
0.18 to 0.23
Chromium (Cr), % 15 to 18
0
Copper (Cu), % 2.0 to 3.5
0
Iron (Fe), % 63 to 76.4
98.8 to 99.22
Manganese (Mn), % 6.5 to 9.0
0.6 to 0.9
Molybdenum (Mo), % 0 to 1.0
0
Nickel (Ni), % 0 to 3.0
0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050