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ASTM B817 Type II vs. S41050 Stainless Steel

ASTM B817 type II belongs to the titanium alloys classification, while S41050 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is ASTM B817 type II and the bottom bar is S41050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 3.0 to 13
25
Fatigue Strength, MPa 390 to 530
160
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
76
Tensile Strength: Ultimate (UTS), MPa 900 to 960
470
Tensile Strength: Yield (Proof), MPa 780 to 900
230

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Maximum Temperature: Mechanical, °C 350
720
Melting Completion (Liquidus), °C 1580
1440
Melting Onset (Solidus), °C 1530
1400
Specific Heat Capacity, J/kg-K 550
480
Thermal Expansion, µm/m-K 9.9
10

Otherwise Unclassified Properties

Base Metal Price, % relative 37
7.0
Density, g/cm3 4.6
7.8
Embodied Carbon, kg CO2/kg material 40
1.9
Embodied Energy, MJ/kg 650
27
Embodied Water, L/kg 220
97

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 120
98
Resilience: Unit (Modulus of Resilience), kJ/m3 2890 to 3890
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 34
25
Strength to Weight: Axial, points 55 to 58
17
Strength to Weight: Bending, points 45 to 47
17
Thermal Shock Resistance, points 62 to 66
17

Alloy Composition


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Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0 to 0.040
Chlorine (Cl), % 0 to 0.2
0
Chromium (Cr), % 0
10.5 to 12.5
Copper (Cu), % 0.35 to 1.0
0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0.35 to 1.0
84.2 to 88.9
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
0.6 to 1.1
Nitrogen (N), % 0 to 0.040
0 to 0.1
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.1
0 to 1.0
Sodium (Na), % 0 to 0.2
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.5 to 2.5
0
Titanium (Ti), % 82.1 to 87.8
0
Vanadium (V), % 5.0 to 6.0
0
Residuals, % 0 to 0.4
0