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AISI 444 Stainless Steel vs. AISI 316N Stainless Steel

Both AISI 444 stainless steel and AISI 316N stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 33 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 AISI 444 stainless steel and the bottom bar is AISI 316N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
9.0 to 39
Fatigue Strength, MPa 210
230 to 450
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Shear Strength, MPa 300
420 to 690
Tensile Strength: Ultimate (UTS), MPa 470
620 to 1160
Tensile Strength: Yield (Proof), MPa 310
270 to 870

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 580
410
Maximum Temperature: Mechanical, °C 930
940
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 15
19
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.4
3.9
Embodied Energy, MJ/kg 47
53
Embodied Water, L/kg 130
150

Common Calculations

PREN (Pitting Resistance) 26
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
95 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 240
180 to 1880
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
22 to 41
Strength to Weight: Bending, points 17
20 to 31
Thermal Diffusivity, mm2/s 6.2
4.1
Thermal Shock Resistance, points 16
14 to 26

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.080
Chromium (Cr), % 17.5 to 19.5
16 to 18
Iron (Fe), % 73.3 to 80.8
61.9 to 71.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 1.8 to 2.5
2.0 to 3.0
Nickel (Ni), % 0 to 1.0
10 to 14
Niobium (Nb), % 0.2 to 0.8
0
Nitrogen (N), % 0 to 0.035
0.1 to 0.16
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0.2 to 0.8
0