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N08020 Stainless Steel vs. S42030 Stainless Steel

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

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

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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