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EN 1.6579 Steel vs. AISI 403 Stainless Steel

Both EN 1.6579 steel and AISI 403 stainless steel are iron alloys. They have 89% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.6579 steel and the bottom bar is AISI 403 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260 to 290
190 to 240
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
16 to 25
Fatigue Strength, MPa 380 to 570
200 to 340
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Tensile Strength: Ultimate (UTS), MPa 850 to 980
530 to 780
Tensile Strength: Yield (Proof), MPa 600 to 910
280 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 440
740
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
28
Thermal Expansion, µm/m-K 13
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 3.7
6.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.9
Embodied Energy, MJ/kg 22
27
Embodied Water, L/kg 56
99

Common Calculations

PREN (Pitting Resistance) 2.4
12
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 120
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 950 to 2210
210 to 840
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 30 to 35
19 to 28
Strength to Weight: Bending, points 25 to 28
19 to 24
Thermal Diffusivity, mm2/s 11
7.6
Thermal Shock Resistance, points 25 to 29
20 to 29

Alloy Composition

Carbon (C), % 0.32 to 0.38
0 to 0.15
Chromium (Cr), % 1.4 to 1.7
11.5 to 13
Iron (Fe), % 94.2 to 96.1
84.7 to 88.5
Manganese (Mn), % 0.6 to 1.0
0 to 1.0
Molybdenum (Mo), % 0.15 to 0.35
0
Nickel (Ni), % 1.4 to 1.7
0 to 0.6
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030

Comparable Variants