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ACI-ASTM CA40F Steel vs. AISI 316Ti Stainless Steel

Both ACI-ASTM CA40F steel and AISI 316Ti stainless steel are iron alloys. They have 81% 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 ACI-ASTM CA40F steel and the bottom bar is AISI 316Ti stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13
41
Fatigue Strength, MPa 320
200
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
82
Tensile Strength: Ultimate (UTS), MPa 770
580
Tensile Strength: Yield (Proof), MPa 550
230

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
470
Maximum Temperature: Mechanical, °C 750
940
Melting Completion (Liquidus), °C 1430
1450
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
15
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
19
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.0
4.0
Embodied Energy, MJ/kg 28
55
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 14
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 94
190
Resilience: Unit (Modulus of Resilience), kJ/m3 790
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
20
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 7.2
4.0
Thermal Shock Resistance, points 28
13

Alloy Composition

Carbon (C), % 0.2 to 0.4
0 to 0.080
Chromium (Cr), % 11.5 to 14
16 to 18
Iron (Fe), % 81.6 to 88.3
61.3 to 72
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
2.0 to 3.0
Nickel (Ni), % 0 to 1.0
10 to 14
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.5
0 to 0.75
Sulfur (S), % 0.2 to 0.4
0 to 0.030
Titanium (Ti), % 0
0 to 0.7