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S41045 Stainless Steel vs. N08320 Stainless Steel

Both S41045 stainless steel and N08320 stainless steel are iron alloys. They have 59% of their average alloy composition in common.

For each property being compared, the top bar is S41045 stainless steel and the bottom bar is N08320 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 25
40
Fatigue Strength, MPa 160
190
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 70
84
Shear Modulus, GPa 76
78
Shear Strength, MPa 280
400
Tensile Strength: Ultimate (UTS), MPa 430
580
Tensile Strength: Yield (Proof), MPa 230
220

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Maximum Temperature: Corrosion, °C 430
430
Maximum Temperature: Mechanical, °C 740
1100
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1400
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 29
12
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
28
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 2.2
4.9
Embodied Energy, MJ/kg 31
69
Embodied Water, L/kg 100
200

Common Calculations

PREN (Pitting Resistance) 13
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
180
Resilience: Unit (Modulus of Resilience), kJ/m3 140
120
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 16
20
Strength to Weight: Bending, points 16
20
Thermal Diffusivity, mm2/s 7.8
3.3
Thermal Shock Resistance, points 16
13

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 12 to 13
21 to 23
Iron (Fe), % 83.8 to 88
40.4 to 50
Manganese (Mn), % 0 to 1.0
0 to 2.5
Nickel (Ni), % 0 to 0.5
25 to 27
Niobium (Nb), % 0 to 0.6
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030