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S31254 Stainless Steel vs. EN 1.4958 Stainless Steel

Both S31254 stainless steel and EN 1.4958 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S31254 stainless steel and the bottom bar is EN 1.4958 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
40
Fatigue Strength, MPa 290
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 80
77
Shear Strength, MPa 490
430
Tensile Strength: Ultimate (UTS), MPa 720
630
Tensile Strength: Yield (Proof), MPa 330
190

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 420
500
Maximum Temperature: Mechanical, °C 1090
1090
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 14
12
Thermal Expansion, µm/m-K 17
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 28
30
Density, g/cm3 8.0
8.0
Embodied Carbon, kg CO2/kg material 5.5
5.3
Embodied Energy, MJ/kg 74
75
Embodied Water, L/kg 190
200

Common Calculations

PREN (Pitting Resistance) 44
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
190
Resilience: Unit (Modulus of Resilience), kJ/m3 270
95
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 25
22
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 3.8
3.2
Thermal Shock Resistance, points 15
15

Alloy Composition

Aluminum (Al), % 0
0.2 to 0.5
Carbon (C), % 0 to 0.020
0.030 to 0.080
Chromium (Cr), % 19.5 to 20.5
19 to 22
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0.5 to 1.0
0 to 0.5
Iron (Fe), % 51.4 to 56.3
41.1 to 50.6
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 6.0 to 6.5
0
Nickel (Ni), % 17.5 to 18.5
30 to 32.5
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0.18 to 0.22
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0 to 0.8
0 to 0.7
Sulfur (S), % 0 to 0.010
0 to 0.010
Titanium (Ti), % 0
0.2 to 0.5