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EN 1.4958 Stainless Steel vs. S41425 Stainless Steel

Both EN 1.4958 stainless steel and S41425 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4958 stainless steel and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
17
Fatigue Strength, MPa 170
450
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
77
Shear Strength, MPa 430
570
Tensile Strength: Ultimate (UTS), MPa 630
920
Tensile Strength: Yield (Proof), MPa 190
750

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 500
390
Maximum Temperature: Mechanical, °C 1090
810
Melting Completion (Liquidus), °C 1400
1450
Melting Onset (Solidus), °C 1350
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
16
Thermal Expansion, µm/m-K 15
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 30
13
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 5.3
2.9
Embodied Energy, MJ/kg 75
40
Embodied Water, L/kg 200
120

Common Calculations

PREN (Pitting Resistance) 21
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
150
Resilience: Unit (Modulus of Resilience), kJ/m3 95
1420
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
33
Strength to Weight: Bending, points 20
27
Thermal Diffusivity, mm2/s 3.2
4.4
Thermal Shock Resistance, points 15
33

Alloy Composition

Aluminum (Al), % 0.2 to 0.5
0
Carbon (C), % 0.030 to 0.080
0 to 0.050
Chromium (Cr), % 19 to 22
12 to 15
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0 to 0.3
Iron (Fe), % 41.1 to 50.6
74 to 81.9
Manganese (Mn), % 0 to 1.5
0.5 to 1.0
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 30 to 32.5
4.0 to 7.0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.030
0.060 to 0.12
Phosphorus (P), % 0 to 0.015
0 to 0.020
Silicon (Si), % 0 to 0.7
0 to 0.5
Sulfur (S), % 0 to 0.010
0 to 0.0050
Titanium (Ti), % 0.2 to 0.5
0