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S44536 Stainless Steel vs. N08904 Stainless Steel

Both S44536 stainless steel and N08904 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 68% of their average alloy composition in common.

For each property being compared, the top bar is S44536 stainless steel and the bottom bar is N08904 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 22
38
Fatigue Strength, MPa 190
200
Poisson's Ratio 0.27
0.28
Rockwell B Hardness 79
77
Shear Modulus, GPa 78
79
Shear Strength, MPa 290
370
Tensile Strength: Ultimate (UTS), MPa 460
540
Tensile Strength: Yield (Proof), MPa 280
240

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 560
430
Maximum Temperature: Mechanical, °C 990
1100
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 21
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
32
Density, g/cm3 7.7
8.1
Embodied Carbon, kg CO2/kg material 2.8
5.8
Embodied Energy, MJ/kg 41
79
Embodied Water, L/kg 140
200

Common Calculations

PREN (Pitting Resistance) 22
37
Resilience: Ultimate (Unit Rupture Work), MJ/m3 89
170
Resilience: Unit (Modulus of Resilience), kJ/m3 200
150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
19
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 5.6
3.1
Thermal Shock Resistance, points 16
12

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.020
Chromium (Cr), % 20 to 23
19 to 23
Copper (Cu), % 0
1.0 to 2.0
Iron (Fe), % 72.8 to 80
38.8 to 53
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0 to 0.5
23 to 28
Niobium (Nb), % 0.050 to 0.8
0
Nitrogen (N), % 0 to 0.015
0 to 0.1
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
Titanium (Ti), % 0 to 0.8
0