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N08904 Stainless Steel vs. S46800 Stainless Steel

Both N08904 stainless steel and S46800 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 66% of their average alloy composition in common.

For each property being compared, the top bar is N08904 stainless steel and the bottom bar is S46800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 38
25
Fatigue Strength, MPa 200
160
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 77
79
Shear Modulus, GPa 79
77
Shear Strength, MPa 370
300
Tensile Strength: Ultimate (UTS), MPa 540
470
Tensile Strength: Yield (Proof), MPa 240
230

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 430
500
Maximum Temperature: Mechanical, °C 1100
920
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
23
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.8
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 32
12
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.8
2.6
Embodied Energy, MJ/kg 79
37
Embodied Water, L/kg 200
130

Common Calculations

PREN (Pitting Resistance) 37
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
98
Resilience: Unit (Modulus of Resilience), kJ/m3 150
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 18
18
Thermal Diffusivity, mm2/s 3.1
6.1
Thermal Shock Resistance, points 12
16

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.030
Chromium (Cr), % 19 to 23
18 to 20
Copper (Cu), % 1.0 to 2.0
0
Iron (Fe), % 38.8 to 53
76.5 to 81.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 23 to 28
0 to 0.5
Niobium (Nb), % 0
0.1 to 0.6
Nitrogen (N), % 0 to 0.1
0 to 0.030
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
Titanium (Ti), % 0
0.070 to 0.3