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EN 1.6368 Steel vs. EN 1.4958 Stainless Steel

Both EN 1.6368 steel and EN 1.4958 stainless steel are iron alloys. They have 49% 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 1.6368 steel and the bottom bar is EN 1.4958 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 410
1090
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
12
Thermal Expansion, µm/m-K 13
15

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
30
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.7
5.3
Embodied Energy, MJ/kg 22
75
Embodied Water, L/kg 53
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 580 to 650
95
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 24
22
Strength to Weight: Bending, points 21 to 22
20
Thermal Diffusivity, mm2/s 11
3.2
Thermal Shock Resistance, points 20
15

Alloy Composition

Aluminum (Al), % 0.015 to 0.040
0.2 to 0.5
Carbon (C), % 0 to 0.17
0.030 to 0.080
Chromium (Cr), % 0 to 0.3
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0.5 to 0.8
0 to 0.5
Iron (Fe), % 95.1 to 97.2
41.1 to 50.6
Manganese (Mn), % 0.8 to 1.2
0 to 1.5
Molybdenum (Mo), % 0.25 to 0.5
0
Nickel (Ni), % 1.0 to 1.3
30 to 32.5
Niobium (Nb), % 0.015 to 0.045
0 to 0.1
Nitrogen (N), % 0 to 0.020
0 to 0.030
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0.25 to 0.5
0 to 0.7
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0
0.2 to 0.5