What are the advantages and disadvantages of composite materials?
1.5 Advantages and Disadvantages of Composite Materials • The advantages of composites are many, including lighter weight, optimum strength and stiffness, improved fatigue life, corrosion resistance, and good design practice, reduced assembly costs due to fewer detail parts and fasteners.
What are the characteristics of composites?
However, as a class of materials, composites tend to have the following characteristics: high strength; high modulus; low density; excellent resistance to fatigue, creep, creep rupture, corrosion, and wear; and low coefficient of ther- mal expansion (CTE).
What is reinforcement composite materials?
Composite reinforcement describes all methods of improving the mechanical properties of composite materials. The choice of reinforcement is important for the properties of the finished part. Such as load-carrying capacity, strength, impact resistance and flexural stiffness.
What are the 4 types of reinforcement?
There are four types of reinforcement: positive, negative, punishment, and extinction.
What is the main component of stainless steel?
Composition of Stainless Steel Steel is an alloy of iron and carbon. Stainless steels are steels containing at least 10.5% chromium, less than 1.2% carbon and other alloying elements.
How do I know if my stainless steel is 316?
To distinguish the molybdenum-containing alloys, a chemical reagent is then used on the yellow stain. If the color changes from yellow to pink, we are in the presence of a stainless steel containing molybdenum (AISI 316).
Which is more expensive SS304 or SS316?
SS316 is also used to make surgical instruments and it’s very popular in the paper industry. It is considered to be slightly more expensive than SS304, but not by much.
Which stainless steel is cheapest?
Type 409: One of the least expensive Stainless grades due to its decreased chromium content. This type should only be used for interior or exterior parts in non-critical corrosive environments. Typical applications include muffler stock.
Is 316 stainless steel magnetic?
A ferritic stainless steel owes its magnetism to two factors: its high concentration of iron and its fundamental structure. Both 304 and 316 stainless steels are austenitic, when they cool, the iron remains in the form of austenite (gamma iron), a phase of iron which is nonmagnetic.
What are the properties of 304 stainless steel?
304 Stainless Physical Properties:
- Density: 8.03g/cm.
- Electrical resistivity: 72 microhm-cm (20C)
- Specific Heat: 500 J/kg °K (0-100°C)
- Thermal conductivity: 16.3 W/m-k (100°C)
- Modulus of Elasticity (MPa): 193 x 103 in tension.
- Melting Range: 2550-2650°F (1399-1454°C)
What is the strength of stainless steel?
Table 1: Summary of mechanical properties for 304 steel.
| Mechanical Properties | Metric | English |
|---|---|---|
| Ultimate Tensile Strength | 505 MPa | 73200 psi |
| Tensile Yield Strength | 215 MPa | 31200 psi |
| Hardness (Rockwell B) | 70 | 70 |
| Modulus of Elasticity | 193-200 GPa | ksi |