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SAE-AISI 1045 Steel vs. AISI 316Ti Stainless Steel

Both SAE-AISI 1045 steel and AISI 316Ti stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1045 steel and the bottom bar is AISI 316Ti stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 190
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13 to 18
41
Fatigue Strength, MPa 220 to 370
200
Poisson's Ratio 0.29
0.28
Reduction in Area, % 40 to 51
45
Shear Modulus, GPa 72
82
Shear Strength, MPa 380 to 410
400
Tensile Strength: Ultimate (UTS), MPa 620 to 680
580
Tensile Strength: Yield (Proof), MPa 330 to 580
230

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
940
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
15
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
4.0
Embodied Energy, MJ/kg 18
55
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 93
190
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 900
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 24
20
Strength to Weight: Bending, points 21 to 22
20
Thermal Diffusivity, mm2/s 14
4.0
Thermal Shock Resistance, points 20 to 22
13

Alloy Composition

Carbon (C), % 0.43 to 0.5
0 to 0.080
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 98.5 to 99
61.3 to 72
Manganese (Mn), % 0.6 to 0.9
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
10 to 14
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0 to 0.050
0 to 0.030
Titanium (Ti), % 0
0 to 0.7