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EN 1.4062 Stainless Steel vs. EN 1.6579 Steel

Both EN 1.4062 stainless steel and EN 1.6579 steel are iron alloys. They have 78% 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 1.4062 stainless steel and the bottom bar is EN 1.6579 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23 to 34
11 to 14
Fatigue Strength, MPa 410 to 420
380 to 570
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 770 to 800
850 to 980
Tensile Strength: Yield (Proof), MPa 530 to 600
600 to 910

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1030
440
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 12
3.7
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.7
Embodied Energy, MJ/kg 37
22
Embodied Water, L/kg 150
56

Common Calculations

PREN (Pitting Resistance) 27
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170 to 230
100 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 690 to 910
950 to 2210
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28 to 29
30 to 35
Strength to Weight: Bending, points 24 to 25
25 to 28
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 21 to 22
25 to 29

Alloy Composition

Carbon (C), % 0 to 0.030
0.32 to 0.38
Chromium (Cr), % 21.5 to 24
1.4 to 1.7
Iron (Fe), % 69.3 to 77.3
94.2 to 96.1
Manganese (Mn), % 0 to 2.0
0.6 to 1.0
Molybdenum (Mo), % 0 to 0.45
0.15 to 0.35
Nickel (Ni), % 1.0 to 2.9
1.4 to 1.7
Nitrogen (N), % 0.16 to 0.28
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.010
0 to 0.030

Comparable Variants