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AISI 439 Stainless Steel vs. AISI 416 Stainless Steel

Both AISI 439 stainless steel and AISI 416 stainless steel are iron alloys. They have a moderately high 94% 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 439 stainless steel and the bottom bar is AISI 416 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
230 to 320
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 23
13 to 31
Fatigue Strength, MPa 170
230 to 340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 310
340 to 480
Tensile Strength: Ultimate (UTS), MPa 490
510 to 800
Tensile Strength: Yield (Proof), MPa 250
290 to 600

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Maximum Temperature: Corrosion, °C 530
390
Maximum Temperature: Mechanical, °C 890
680
Melting Completion (Liquidus), °C 1510
1530
Melting Onset (Solidus), °C 1430
1480
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 25
30
Thermal Expansion, µm/m-K 11
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
7.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.3
1.9
Embodied Energy, MJ/kg 34
27
Embodied Water, L/kg 120
100

Common Calculations

PREN (Pitting Resistance) 18
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
98 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 160
220 to 940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
18 to 29
Strength to Weight: Bending, points 18
18 to 25
Thermal Diffusivity, mm2/s 6.7
8.1
Thermal Shock Resistance, points 16
19 to 30

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 17 to 19
12 to 14
Iron (Fe), % 77.1 to 82.8
83.2 to 87.9
Manganese (Mn), % 0 to 1.0
0 to 1.3
Nickel (Ni), % 0 to 0.5
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0.15 to 0.35
Titanium (Ti), % 0.2 to 1.1
0