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EN 1.4306 Stainless Steel vs. EN 1.6580 Steel

Both EN 1.4306 stainless steel and EN 1.6580 steel are iron alloys. They have 73% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4306 stainless steel and the bottom bar is EN 1.6580 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
220 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 45
11 to 19
Fatigue Strength, MPa 190 to 330
310 to 610
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 400 to 550
450 to 700
Tensile Strength: Ultimate (UTS), MPa 580 to 900
720 to 1170
Tensile Strength: Yield (Proof), MPa 210 to 570
460 to 990

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 960
450
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
40
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 16
4.3
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.2
1.8
Embodied Energy, MJ/kg 45
23
Embodied Water, L/kg 150
59

Common Calculations

PREN (Pitting Resistance) 20
3.3
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 200
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 820
560 to 2590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21 to 32
26 to 41
Strength to Weight: Bending, points 20 to 27
23 to 31
Thermal Diffusivity, mm2/s 4.0
11
Thermal Shock Resistance, points 13 to 20
21 to 34

Alloy Composition

Carbon (C), % 0 to 0.030
0.26 to 0.34
Chromium (Cr), % 18 to 20
1.8 to 2.2
Iron (Fe), % 64.8 to 72
93.7 to 95.5
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Molybdenum (Mo), % 0
0.3 to 0.5
Nickel (Ni), % 10 to 12
1.8 to 2.2
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035

Comparable Variants