ASTM A276 TP304 Stainless Steel Flat Bar And Angle Bar
Stainless steel flat bars and angle bars are both popular types of structural components used in various industries due to their corrosion resistance, durability, and aesthetic appeal. Here's a detailed comparison between the two:
Flat Bar
- Shape: A stainless steel flat bar is a rectangular solid piece with straight edges and uniform thickness throughout its length.
- Usage:It is commonly used in applications where strength, rigidity, and resistance to corrosion are essential. Examples include construction (bridges, railings), manufacturing (machinery parts, tooling), and automotive industries.
- Dimensions:Flat bars can be custom cut to specific lengths and thicknesses according to customer requirements.
- Surface Finish: Available in various finishes like bright annealed, pickled and passivated, brushed, or polished.
Angle Bar:
- Shape: An angle bar, also known as an unequal leg angle, is a type of structural shape with two legs of different lengths that meet at a 90-degree angle.
- Usage: Angle bars are versatile and widely used in construction, fabrication, and engineering projects. They provide strength and support in various structures like frames, supports, and braces.
- Strength: The triangular shape of the angle bar provides excellent strength-to-weight ratio, making it suitable for load-bearing applications.
- Dimensions: Angles come in standard sizes with different angle dimensions (e.g., 45°, 60°, 90°) and thicknesses. Custom sizes can also be ordered.
- Surface Finish:Similar to flat bars, angle bars can have various surface finishes, depending on the application.
Both stainless steel flat bars and angle bars offer excellent performance in harsh environments and require minimal maintenance. When choosing between the two, consider the specific application, required strength, and aesthetics. Flat bars are more suitable for projects where a continuous, straight section is needed, while angle bars excel in providing support and strength in multiple directions.
ASTM A276 TP304 Flat Bar is a type of stainless steel product that adheres to the specifications outlined in ASTM A276, which is a standard for chromium and chromium-nickel stainless steel bars. TP304 refers to the material's grade, specifically Type 304, which is an austenitic stainless steel containing a minimum of 18% chromium and 8% nickel.
Type 304 is known for its excellent corrosion resistance, particularly against mild or sea water, as well as resistance to organic acids and alkalis. It also has good mechanical properties, such as high strength, toughness, and formability, making it suitable for various applications that require both durability and ease of fabrication.
Flat bars made from ASTM A276 TP304 are flat, rectangular-shaped bars with a smooth surface finish. They can be cold-formed into different shapes and sizes, suitable for use in industries like construction, aerospace, automotive, chemical processing, and food and beverage. The flat bars may have different finishes like mill finish, polished, or pickled and passivated, depending on the customer's requirements.
When specifying ASTM A276 TP304 flat bars, you would need to consider factors like dimensions (length, width, and thickness), tolerance, surface finish, and any additional mechanical or chemical treatment needed for your specific application. It's essential to consult the ASTM A276 standard or work with a professional to ensure the correct material selection and quality for your project.
Equivalent Grades of SS 304 Flat Bar
| STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
BS |
GOST |
AFNOR |
EN |
| SS 304 |
1.4301 |
S30400 |
SUS 304 |
304S31 |
08Х18Н10 |
Z7CN18-09 |
X5CrNi18-10 |
Stainless Steel 304 Flat Bar Chemical Composition
| Element |
SS 304 |
| C |
0.08 max |
| Mn |
2 max |
| Si |
0.75 max |
| P |
0.045 max |
| S |
0.030 max |
| Cr |
18 – 20 |
| Ni |
8 – 11 |
Mechanical Properties of SS 304 Flat Bar
| Element |
SS 304 |
| Density |
8.0 g/cm3 |
| Melting Point |
1400 °C (2550 °F) |
| Tensile Strength |
Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) |
Psi – 30000 , MPa – 205 |
| Elongation |
35 % |
Application Of Flat Bars And Angle Bar:
Architectural and construction
Automotive industry
Machinery and equipment: In industrial machinery, they can be found in gears, bearings, and other moving parts that require protection from corrosion.
Furniture
Marine applications
-Structural support
HVAC systems
Industrial machinery
Offshore and marine applications
