Superior Steel Overseas

We are the leading supplier and exporter of AISI 431  in terms of quality for our valuable customers.

We Superior Steel Overseas are the leading Manufacturer Stockist and dealer of this product Having base in Mumbai we have our clientele on Pan India level Having decades of experience in this field we also provide suggestions to our customers on the basis of thier application

Additional Information:

• Minimum Order Quantity: 100 Kg

We Superior Steel Overseas are the leading Manufacturer Stockist and dealer of this product Having base in Mumbai we have our clientele on Pan India level Having decades of experience in this field we also provide suggestions to our customers on the basis of thier application

Additional Information:

• Minimum Order Quantity: 100 Kg

ASME/ASTM A249 is a specification that covers welded austenitic steel boiler, superheater, heat-exchanger, and condenser tubes. However, it does not specifically cover seamless stainless steel pipes.

For seamless stainless steel pipes, you may consider ASTM A312/A312M, which is the standard specification for seamless, welded, and heavily cold-worked austenitic stainless steel pipes. This specification covers a wide range of grades and sizes for various applications.

Some commonly used grades for seamless stainless steel pipes include:

1. ASTM A312/A312M TP304/304L: This grade is the most widely used stainless steel grade for general applications. It offers excellent corrosion resistance, good formability, and high-temperature strength.

2. ASTM A312/A312M TP316/316L: Similar to TP304/304L, this grade contains molybdenum, which enhances its corrosion resistance, particularly in chloride environments.

3. ASTM A312/A312M TP321/321H: This grade contains titanium, which stabilizes the structure against sensitization during welding and provides excellent resistance to intergranular corrosion.

4. ASTM A312/A312M TP347/347H: This grade contains niobium and offers improved resistance to sensitization and intergranular corrosion at high temperatures.

These are just a few examples of the many grades available in the ASTM A312/A312M specification. It's important to consult the specific requirements of your application and select the appropriate grade accordingly.

If you specifically require pipes that comply with the ASME/ASTM A249 specification, it's worth noting that it covers welded tubes rather than seamless pipes. These tubes are primarily intended for use in boilers, superheaters, heat exchangers, and condensers in high-temperature service.

ASTM A672 is a specification that covers electric-fusion-welded steel pipe for high-pressure service at moderate temperatures. It specifically pertains to pipe made from carbon-manganese steel, which is commonly used in applications such as boilers, pressure vessels, and other high-pressure services.

The ASTM A672 specification is divided into several grades based on different minimum yield strengths. Each grade is further classified by different classes, which represent various heat treatment conditions and testing requirements. The grades and classes are as follows:

• Grade A45, A50, A55, A60: Minimum yield strength of 45, 50, 55, or 60 ksi (310, 345, 380, or 415 MPa), respectively.
• Grade B55, B60, B65, B70, C55, C60, C65, C70: Minimum yield strength of 55, 60, 65, or 70 ksi (380, 415, 450, or 485 MPa), respectively.

The ASTM A672 specification also provides requirements for mechanical properties, chemical composition, heat treatment, dimensions, and testing methods.

It's important to note that ASTM A672 is specific to electric-fusion-welded steel pipe, which means the pipe is manufactured by fusion welding with the use of electrical energy. This method typically involves the use of an arc between the bare metal electrodes and the workpiece.

When selecting ASTM A672 grade steel pipe, it's crucial to consider the specific requirements of your application, such as pressure, temperature, and compatibility with other components. Consulting with a reputable supplier or manufacturer experienced in ASTM A672 can help ensure you choose the appropriate grade and class of steel pipe for your project.