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ASTM B817 Type I vs. S35140 Stainless Steel

ASTM B817 type I belongs to the titanium alloys classification, while S35140 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM B817 type I and the bottom bar is S35140 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 4.0 to 13
34
Fatigue Strength, MPa 360 to 520
250
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 770 to 960
690
Tensile Strength: Yield (Proof), MPa 700 to 860
310

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 340
1100
Melting Completion (Liquidus), °C 1600
1420
Melting Onset (Solidus), °C 1550
1370
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
14
Thermal Expansion, µm/m-K 9.6
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 36
31
Density, g/cm3 4.4
8.0
Embodied Carbon, kg CO2/kg material 38
5.5
Embodied Energy, MJ/kg 610
78
Embodied Water, L/kg 200
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 120
190
Resilience: Unit (Modulus of Resilience), kJ/m3 2310 to 3540
250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 48 to 60
24
Strength to Weight: Bending, points 42 to 49
22
Thermal Diffusivity, mm2/s 2.9
3.7
Thermal Shock Resistance, points 54 to 68
16

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.1
0 to 0.1
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
20 to 22
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
44.1 to 52.7
Manganese (Mn), % 0
1.0 to 3.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 0
25 to 27
Niobium (Nb), % 0
0.25 to 0.75
Nitrogen (N), % 0 to 0.040
0.080 to 0.2
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.1
0 to 0.75
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 87 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0