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AISI 316N Stainless Steel vs. AISI 439 Stainless Steel

Both AISI 316N stainless steel and AISI 439 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI 316N stainless steel and the bottom bar is AISI 439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 350
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 9.0 to 39
23
Fatigue Strength, MPa 230 to 450
170
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Shear Strength, MPa 420 to 690
310
Tensile Strength: Ultimate (UTS), MPa 620 to 1160
490
Tensile Strength: Yield (Proof), MPa 270 to 870
250

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 410
530
Maximum Temperature: Mechanical, °C 940
890
Melting Completion (Liquidus), °C 1440
1510
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
25
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
9.0
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 3.9
2.3
Embodied Energy, MJ/kg 53
34
Embodied Water, L/kg 150
120

Common Calculations

PREN (Pitting Resistance) 27
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95 to 230
95
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 1880
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22 to 41
18
Strength to Weight: Bending, points 20 to 31
18
Thermal Diffusivity, mm2/s 4.1
6.7
Thermal Shock Resistance, points 14 to 26
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 16 to 18
17 to 19
Iron (Fe), % 61.9 to 71.9
77.1 to 82.8
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 10 to 14
0 to 0.5
Nitrogen (N), % 0.1 to 0.16
0 to 0.030
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.1