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S42030 Stainless Steel vs. N08926 Stainless Steel

Both S42030 stainless steel and N08926 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 63% of their average alloy composition in common.

For each property being compared, the top bar is S42030 stainless steel and the bottom bar is N08926 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16
40
Fatigue Strength, MPa 250
290
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
80
Shear Strength, MPa 410
500
Tensile Strength: Ultimate (UTS), MPa 670
740
Tensile Strength: Yield (Proof), MPa 410
330

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
420
Maximum Temperature: Mechanical, °C 780
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 28
12
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 10
33
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.5
6.2
Embodied Energy, MJ/kg 34
84
Embodied Water, L/kg 110
200

Common Calculations

PREN (Pitting Resistance) 20
45
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
240
Resilience: Unit (Modulus of Resilience), kJ/m3 440
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
25
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 7.7
3.2
Thermal Shock Resistance, points 24
16

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.020
Chromium (Cr), % 12 to 14
19 to 21
Copper (Cu), % 2.0 to 3.0
0.5 to 1.5
Iron (Fe), % 77.6 to 85
41.7 to 50.4
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 1.0 to 3.0
6.0 to 7.0
Nickel (Ni), % 0
24 to 26
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010