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EN 1.4951 Stainless Steel vs. S41425 Stainless Steel

Both EN 1.4951 stainless steel and S41425 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 33 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 1.4951 stainless steel and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
280
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 38
17
Fatigue Strength, MPa 190
450
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 430
570
Tensile Strength: Ultimate (UTS), MPa 630
920
Tensile Strength: Yield (Proof), MPa 220
750

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
810
Melting Completion (Liquidus), °C 1410
1450
Melting Onset (Solidus), °C 1360
1410
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 25
13
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.3
2.9
Embodied Energy, MJ/kg 61
40
Embodied Water, L/kg 190
120

Common Calculations

PREN (Pitting Resistance) 26
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
150
Resilience: Unit (Modulus of Resilience), kJ/m3 130
1420
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
33
Strength to Weight: Bending, points 21
27
Thermal Diffusivity, mm2/s 3.9
4.4
Thermal Shock Resistance, points 14
33

Alloy Composition

Carbon (C), % 0.040 to 0.080
0 to 0.050
Chromium (Cr), % 24 to 26
12 to 15
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 49.1 to 57
74 to 81.9
Manganese (Mn), % 0 to 2.0
0.5 to 1.0
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 19 to 22
4.0 to 7.0
Nitrogen (N), % 0 to 0.1
0.060 to 0.12
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0 to 0.7
0 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.0050