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S31727 Stainless Steel vs. S41425 Stainless Steel

Both S31727 stainless steel and S41425 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is S31727 stainless steel and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
280
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
17
Fatigue Strength, MPa 240
450
Poisson's Ratio 0.28
0.28
Reduction in Area, % 56
51
Shear Modulus, GPa 78
77
Shear Strength, MPa 430
570
Tensile Strength: Ultimate (UTS), MPa 630
920
Tensile Strength: Yield (Proof), MPa 270
750

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
390
Maximum Temperature: Mechanical, °C 1010
810
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
10

Otherwise Unclassified Properties

Base Metal Price, % relative 24
13
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 4.7
2.9
Embodied Energy, MJ/kg 64
40
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 35
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
150
Resilience: Unit (Modulus of Resilience), kJ/m3 190
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 Shock Resistance, points 14
33

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 17.5 to 19
12 to 15
Copper (Cu), % 2.8 to 4.0
0 to 0.3
Iron (Fe), % 53.7 to 61.3
74 to 81.9
Manganese (Mn), % 0 to 1.0
0.5 to 1.0
Molybdenum (Mo), % 3.8 to 4.5
1.5 to 2.0
Nickel (Ni), % 14.5 to 16.5
4.0 to 7.0
Nitrogen (N), % 0.15 to 0.21
0.060 to 0.12
Phosphorus (P), % 0 to 0.030
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.0050