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N08028 Stainless Steel vs. S40945 Stainless Steel

Both N08028 stainless steel and S40945 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 47% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is N08028 stainless steel and the bottom bar is S40945 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
25
Fatigue Strength, MPa 220
160
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 80
69
Shear Modulus, GPa 80
75
Shear Strength, MPa 400
270
Tensile Strength: Ultimate (UTS), MPa 570
430
Tensile Strength: Yield (Proof), MPa 240
230

Thermal Properties

Latent Heat of Fusion, J/g 320
270
Maximum Temperature: Corrosion, °C 460
450
Maximum Temperature: Mechanical, °C 1100
710
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
26
Thermal Expansion, µm/m-K 16
10

Otherwise Unclassified Properties

Base Metal Price, % relative 37
8.0
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 6.4
2.2
Embodied Energy, MJ/kg 89
31
Embodied Water, L/kg 240
94

Common Calculations

PREN (Pitting Resistance) 39
11
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
89
Resilience: Unit (Modulus of Resilience), kJ/m3 140
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
15
Strength to Weight: Bending, points 19
16
Thermal Diffusivity, mm2/s 3.2
6.9
Thermal Shock Resistance, points 12
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 26 to 28
10.5 to 11.7
Copper (Cu), % 0.6 to 1.4
0
Iron (Fe), % 29 to 40.4
85.1 to 89.3
Manganese (Mn), % 0 to 2.5
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 30 to 34
0 to 0.5
Niobium (Nb), % 0
0.18 to 0.4
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.050 to 0.2