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EN 1.4959 Stainless Steel vs. EN 1.6368 Steel

Both EN 1.4959 stainless steel and EN 1.6368 steel are iron alloys. They have 48% 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 1.4959 stainless steel and the bottom bar is EN 1.6368 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
18
Fatigue Strength, MPa 170
310 to 330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 430
410 to 430
Tensile Strength: Ultimate (UTS), MPa 630
660 to 690
Tensile Strength: Yield (Proof), MPa 190
460 to 490

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1090
410
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 12
40
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 31
3.4
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.4
1.7
Embodied Energy, MJ/kg 76
22
Embodied Water, L/kg 200
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
110
Resilience: Unit (Modulus of Resilience), kJ/m3 96
580 to 650
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
23 to 24
Strength to Weight: Bending, points 20
21 to 22
Thermal Diffusivity, mm2/s 3.2
11
Thermal Shock Resistance, points 15
20

Alloy Composition

Aluminum (Al), % 0.25 to 0.65
0.015 to 0.040
Carbon (C), % 0.050 to 0.1
0 to 0.17
Chromium (Cr), % 19 to 22
0 to 0.3
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0.5 to 0.8
Iron (Fe), % 39.4 to 50.5
95.1 to 97.2
Manganese (Mn), % 0 to 1.5
0.8 to 1.2
Molybdenum (Mo), % 0
0.25 to 0.5
Nickel (Ni), % 30 to 34
1.0 to 1.3
Niobium (Nb), % 0
0.015 to 0.045
Nitrogen (N), % 0 to 0.030
0 to 0.020
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 0.7
0.25 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0.25 to 0.65
0