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S41425 Stainless Steel vs. AISI 308L Stainless Steel

Both S41425 stainless steel and AISI 308L stainless steel are iron alloys. They have 87% of their average alloy composition in common.

For each property being compared, the top bar is S41425 stainless steel and the bottom bar is AISI 308L stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
34
Fatigue Strength, MPa 450
180
Poisson's Ratio 0.28
0.28
Reduction in Area, % 51
46
Shear Modulus, GPa 77
78
Shear Strength, MPa 570
380
Tensile Strength: Ultimate (UTS), MPa 920
580
Tensile Strength: Yield (Proof), MPa 750
230

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
430
Maximum Temperature: Mechanical, °C 810
1010
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
16
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.9
3.2
Embodied Energy, MJ/kg 40
45
Embodied Water, L/kg 120
160

Common Calculations

PREN (Pitting Resistance) 21
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
160
Resilience: Unit (Modulus of Resilience), kJ/m3 1420
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 33
21
Strength to Weight: Bending, points 27
20
Thermal Diffusivity, mm2/s 4.4
4.1
Thermal Shock Resistance, points 33
13

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 12 to 15
19.5 to 22
Copper (Cu), % 0 to 0.3
0
Iron (Fe), % 74 to 81.9
63.8 to 70.5
Manganese (Mn), % 0.5 to 1.0
1.0 to 2.5
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 4.0 to 7.0
9.0 to 11
Nitrogen (N), % 0.060 to 0.12
0
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.5
0.25 to 0.6
Sulfur (S), % 0 to 0.0050
0 to 0.030