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S41425 Stainless Steel vs. S39277 Stainless Steel

Both S41425 stainless steel and S39277 stainless steel are iron alloys. They have 82% of their average alloy composition in common.

For each property being compared, the top bar is S41425 stainless steel and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
28
Fatigue Strength, MPa 450
480
Poisson's Ratio 0.28
0.27
Reduction in Area, % 51
57
Shear Modulus, GPa 77
80
Shear Strength, MPa 570
600
Tensile Strength: Ultimate (UTS), MPa 920
930
Tensile Strength: Yield (Proof), MPa 750
660

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
450
Maximum Temperature: Mechanical, °C 810
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
23
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.9
4.2
Embodied Energy, MJ/kg 40
59
Embodied Water, L/kg 120
180

Common Calculations

PREN (Pitting Resistance) 21
43
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
240
Resilience: Unit (Modulus of Resilience), kJ/m3 1420
1070
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
33
Strength to Weight: Bending, points 27
27
Thermal Diffusivity, mm2/s 4.4
4.2
Thermal Shock Resistance, points 33
26

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.025
Chromium (Cr), % 12 to 15
24 to 26
Copper (Cu), % 0 to 0.3
1.2 to 2.0
Iron (Fe), % 74 to 81.9
56.8 to 64.3
Manganese (Mn), % 0.5 to 1.0
0 to 0.8
Molybdenum (Mo), % 1.5 to 2.0
3.0 to 4.0
Nickel (Ni), % 4.0 to 7.0
6.5 to 8.0
Nitrogen (N), % 0.060 to 0.12
0.23 to 0.33
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.8
Sulfur (S), % 0 to 0.0050
0 to 0.0020
Tungsten (W), % 0
0.8 to 1.2