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N08700 Stainless Steel vs. AISI 439 Stainless Steel

Both N08700 stainless steel and AISI 439 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 67% of their average alloy composition in common. There are 35 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 N08700 stainless steel and the bottom bar is AISI 439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 32
23
Fatigue Strength, MPa 210
170
Poisson's Ratio 0.28
0.28
Reduction in Area, % 45
51
Rockwell B Hardness 81
78
Shear Modulus, GPa 79
77
Shear Strength, MPa 410
310
Tensile Strength: Ultimate (UTS), MPa 620
490
Tensile Strength: Yield (Proof), MPa 270
250

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 460
530
Maximum Temperature: Mechanical, °C 1100
890
Melting Completion (Liquidus), °C 1450
1510
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 13
25
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 32
9.0
Density, g/cm3 8.1
7.7
Embodied Carbon, kg CO2/kg material 6.0
2.3
Embodied Energy, MJ/kg 82
34
Embodied Water, L/kg 200
120

Common Calculations

PREN (Pitting Resistance) 36
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
95
Resilience: Unit (Modulus of Resilience), kJ/m3 180
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
18
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 3.5
6.7
Thermal Shock Resistance, points 14
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Carbon (C), % 0 to 0.040
0 to 0.030
Chromium (Cr), % 19 to 23
17 to 19
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 42 to 52.7
77.1 to 82.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 4.3 to 5.0
0
Nickel (Ni), % 24 to 26
0 to 0.5
Niobium (Nb), % 0 to 0.4
0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.040
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
0.2 to 1.1