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S44627 Stainless Steel vs. N08904 Stainless Steel

Both S44627 stainless steel and N08904 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 S44627 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, % 24
38
Fatigue Strength, MPa 200
200
Poisson's Ratio 0.27
0.28
Rockwell B Hardness 79
77
Shear Modulus, GPa 80
79
Shear Strength, MPa 310
370
Tensile Strength: Ultimate (UTS), MPa 490
540
Tensile Strength: Yield (Proof), MPa 300
240

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 470
430
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 11
16

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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