304 2b Finish
One of the great advantages of the 304 2B finish is that it is easy to maintain and clean, which makes it ideal for use in environments that require high levels of hygiene. The smooth surface of the steel also provides better resistance to dirt and grime, making it easier to keep it looking clean and new.
Another benefit of the 304 2B finish is its versatility. This type of stainless steel can be used for a wide range of applications, from household appliances to industrial equipment. It can withstand high temperatures and is resistant to corrosion, making it a popular choice in environments that require high strength and durability.
In addition, the 304 2B finish is also cost-effective compared to other types of stainless steel. Its excellent corrosion resistance and aesthetic appeal make it a popular choice for many industries, including architecture and engineering.
Overall, the finish is a durable and versatile material that is perfect for various applications. Its aesthetic appeal, ease of maintenance and cost-effectiveness make it a popular choice in various industries, and it is an excellent investment for anyone looking for high-quality stainless steel.
CHEMICAL COMPOSITION: (PER ASTM A240)
| Element | Type 304 | Type 304L |
|---|---|---|
| Carbon | 0.07Max | 0.030 Max |
| Manganese | 2.00Max | 2.00 Max |
| Sulfur | 0.030 Max | 0.030 Max |
| Phosphorus | 0.045 Max | 0.045 Max |
| Silicon | 0.75 Max | 0.75 Max |
| Chromium | 17.5 to 19.5 | 18.0 to 20.0 |
| Nickel | 8.0 to 10.5 | 8.0 to 12.0 |
| Nitrogen | 0.10 Max | 0.10 Max |
MECHANICAL PROPERTIES: (PER ASTM A240, A666)
| Type | Yield Strength 0.2% offset (KSI) | Tensile Strength (KSI) | % Elongation(2″ Gauge length) |
|---|---|---|---|
| 304 Ann | 30 min. | 75 min. | 40 min. |
| 304 ¼ Hard | 75 min. | 125 min. | 12 min. |
| 304 ½ Hard | 110 min. | 150 min. | 7 min. |
| 304L Ann | 25 min. | 70 min. | 40 min. |
| 304L ¼ Hard | 75 min. | 125 min. | 12 min. |
| 304L ½ Hard | 110 min. | 150 min. | 6 min. |
PHYSICAL PROPERTIES: (ANNEALED)
|
Density (lb./ in^2) @ RT |
0.29 |
|
|---|---|---|
|
Modulus of Elasticity in Tension (psi x 10^6) |
28.0 |
|
|
Specific Heat (BTU/o F/lb.) |
32 to 212 oF |
0.12 |
|
Thermal Conductivity (BTU/hr/ft^2/ft) |
212oF |
9.4 |
|
932oF |
12.4 |
|
|
Mean Coefficient of Thermal Expansion (in. x 10^-6 per o F) |
32 to 212oF |
9.2 |
|
32 to 600oF |
9.9 |
|
|
32 to 1,000oF |
10.2 |
|
|
32 to 1,200oF |
10.4 |
|
|
Electrical Resistivity (micro ohms – cm) |
at 70oF |
72 |
|
Melting Point Range (oF) |
2550 to 2650 |
|
|
Oxidation Resistance – Continuous Service(oF) |
1,650 |
|
|
Oxidation Resistance – Intermittent Service(oF) |
1,500 |
304 2b finish productive process：
304 2B finish is a popular and versatile finish for stainless steel products that offers a smooth, reflective surface. The production process of this finish involves several steps and techniques that need to be followed carefully. Below are some key points of the productive process:
1. Raw material selection: High-quality stainless steel is essential for achieving a consistent and durable. The steel should be free from defects and impurities that could affect the final appearance and performance.
2. Cold rolling: The stainless steel is first processed through a series of cold rolling steps to achieve the desired thickness and texture. The cold rolling process helps to improve the surface finish and reduce the risk of defects such as wrinkles, tears, or cracks.
3. Annealing: After the cold rolling process, the stainless steel is annealed or heat-treated to remove any stresses or strains that may have accumulated during the preceding steps. Annealing also helps to improve the material's ductility, strength, and formability.
4. Pickling: The stainless steel is then pickled or treated with acid to remove any surface contaminants or oxides that may have formed during the previous steps. Pickling also helps to enhance the surface finish by creating a smooth and uniform surface.
5. 2B finish: The final step in the process involves applying a 2B finish to the stainless steel. This is typically achieved by using a series of abrasive belts or brushes that create a uniform and consistent surface finish. The 2B is characterized by a bright and reflective surface that is free from any visible defects.
Overall, the productive process of 304 2B finish requires attention to detail and a commitment to quality. By following these steps and techniques, manufacturers can produce high-quality stainless steel products that are durable, reliable, and visually appealing.
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