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N08904 Stainless Steel vs. S44627 Stainless Steel

Both N08904 stainless steel and S44627 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 69% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is N08904 stainless steel and the bottom bar is S44627 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 38
24
Fatigue Strength, MPa 200
200
Poisson's Ratio 0.28
0.27
Rockwell B Hardness 77
79
Shear Modulus, GPa 79
80
Shear Strength, MPa 370
310
Tensile Strength: Ultimate (UTS), MPa 540
490
Tensile Strength: Yield (Proof), MPa 240
300

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 430
470
Maximum Temperature: Mechanical, °C 1100
1100
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
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 32
14
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 5.8
2.9
Embodied Energy, MJ/kg 79
41
Embodied Water, L/kg 200
160

Common Calculations

PREN (Pitting Resistance) 37
30
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
100
Resilience: Unit (Modulus of Resilience), kJ/m3 150
220
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 18
18
Thermal Diffusivity, mm2/s 3.1
4.6
Thermal Shock Resistance, points 12
16

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.010
Chromium (Cr), % 19 to 23
25 to 27.5
Copper (Cu), % 1.0 to 2.0
0 to 0.2
Iron (Fe), % 38.8 to 53
69.2 to 74.2
Manganese (Mn), % 0 to 2.0
0 to 0.4
Molybdenum (Mo), % 4.0 to 5.0
0.75 to 1.5
Nickel (Ni), % 23 to 28
0 to 0.5
Niobium (Nb), % 0
0.050 to 0.2
Nitrogen (N), % 0 to 0.1
0 to 0.015
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.035
0 to 0.020