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EN 1.4468 Stainless Steel vs. S31655 Stainless Steel

Both EN 1.4468 stainless steel and S31655 stainless steel are iron alloys. They have a moderately high 93% of their average alloy composition in common. There are 31 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 1.4468 stainless steel and the bottom bar is S31655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 25
39
Fatigue Strength, MPa 380
300
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
78
Tensile Strength: Ultimate (UTS), MPa 730
710
Tensile Strength: Yield (Proof), MPa 550
350

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 450
430
Maximum Temperature: Mechanical, °C 1100
1010
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 19
17
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
3.3
Embodied Energy, MJ/kg 53
46
Embodied Water, L/kg 180
160

Common Calculations

PREN (Pitting Resistance) 38
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
230
Resilience: Unit (Modulus of Resilience), kJ/m3 730
310
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
25
Strength to Weight: Bending, points 23
23
Thermal Diffusivity, mm2/s 4.6
4.0
Thermal Shock Resistance, points 20
16

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 24.5 to 26.5
19.5 to 21.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 59.7 to 67.4
63.2 to 71.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.5 to 3.5
0.5 to 1.5
Nickel (Ni), % 5.5 to 7.0
8.0 to 9.5
Nitrogen (N), % 0.12 to 0.25
0.14 to 0.25
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.015