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S42030 Stainless Steel vs. N08020 Stainless Steel

Both S42030 stainless steel and N08020 stainless steel are iron alloys. They have 56% of their average alloy composition in common.

For each property being compared, the top bar is S42030 stainless steel and the bottom bar is N08020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 16
15 to 34
Fatigue Strength, MPa 250
210 to 240
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
77
Shear Strength, MPa 410
380 to 410
Tensile Strength: Ultimate (UTS), MPa 670
610 to 620
Tensile Strength: Yield (Proof), MPa 410
270 to 420

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
490
Maximum Temperature: Mechanical, °C 780
1100
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 28
12
Thermal Expansion, µm/m-K 10
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 10
38
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 2.5
6.6
Embodied Energy, MJ/kg 34
92
Embodied Water, L/kg 110
220

Common Calculations

PREN (Pitting Resistance) 20
28
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
83 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 440
180 to 440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 7.7
3.2
Thermal Shock Resistance, points 24
15

Alloy Composition

Carbon (C), % 0 to 0.3
0 to 0.070
Chromium (Cr), % 12 to 14
19 to 21
Copper (Cu), % 2.0 to 3.0
3.0 to 4.0
Iron (Fe), % 77.6 to 85
29.9 to 44
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 1.0 to 3.0
2.0 to 3.0
Nickel (Ni), % 0
32 to 38
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.035