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AISI 316Ti Stainless Steel vs. SAE-AISI 4620 Steel

Both AISI 316Ti stainless steel and SAE-AISI 4620 steel are iron alloys. They have 70% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 316Ti stainless steel and the bottom bar is SAE-AISI 4620 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
150 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 41
16 to 27
Fatigue Strength, MPa 200
260 to 360
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 82
73
Shear Strength, MPa 400
320 to 420
Tensile Strength: Ultimate (UTS), MPa 580
490 to 680
Tensile Strength: Yield (Proof), MPa 230
350 to 550

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
410
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 15
47
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 19
3.2
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 4.0
1.6
Embodied Energy, MJ/kg 55
22
Embodied Water, L/kg 150
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
100 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
330 to 800
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 20
17 to 24
Strength to Weight: Bending, points 20
18 to 22
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 13
15 to 20

Alloy Composition

Carbon (C), % 0 to 0.080
0.17 to 0.22
Chromium (Cr), % 16 to 18
0
Iron (Fe), % 61.3 to 72
96.4 to 97.4
Manganese (Mn), % 0 to 2.0
0.45 to 0.65
Molybdenum (Mo), % 2.0 to 3.0
0.2 to 0.3
Nickel (Ni), % 10 to 14
1.7 to 2.0
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.75
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040
Titanium (Ti), % 0 to 0.7
0