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EN 1.4612 Stainless Steel vs. EN 1.6579 Steel

Both EN 1.4612 stainless steel and EN 1.6579 steel are iron alloys. They have 77% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4612 stainless steel and the bottom bar is EN 1.6579 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
11 to 14
Fatigue Strength, MPa 860 to 950
380 to 570
Impact Strength: V-Notched Charpy, J 11 to 22
35 to 41
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 1690 to 1850
850 to 980
Tensile Strength: Yield (Proof), MPa 1570 to 1730
600 to 910

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 790
440
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 11
13

Otherwise Unclassified Properties

Base Metal Price, % relative 16
3.7
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.6
1.7
Embodied Energy, MJ/kg 50
22
Embodied Water, L/kg 140
56

Common Calculations

PREN (Pitting Resistance) 19
2.4
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 210
100 to 120
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 60 to 65
30 to 35
Strength to Weight: Bending, points 40 to 43
25 to 28
Thermal Shock Resistance, points 58 to 63
25 to 29

Alloy Composition

Aluminum (Al), % 1.4 to 1.8
0
Carbon (C), % 0 to 0.015
0.32 to 0.38
Chromium (Cr), % 11 to 12.5
1.4 to 1.7
Iron (Fe), % 71.5 to 75.5
94.2 to 96.1
Manganese (Mn), % 0 to 0.1
0.6 to 1.0
Molybdenum (Mo), % 1.8 to 2.3
0.15 to 0.35
Nickel (Ni), % 10.2 to 11.3
1.4 to 1.7
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.010
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 0.6
Sulfur (S), % 0 to 0.0050
0 to 0.030
Titanium (Ti), % 0.2 to 0.5
0

Comparable Variants