ASTM A 403 WP TP 304L H Butt Weld Fittings

ASTM A403 covers the standard for wrought austenitic stainless steel fittings for pressure piping applications. The material for fittings shall consist of forgings, bars, plates, or seamless or welded tubular products. Forging or shaping operations shall be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of two or more of these operations. All fittings shall undergo heat-treatment.

Chemical and product analyses shall be performed and shall conform to the required chemical composition in carbon, manganese, phosphorus, sulfur, silicon, chromium, molybdenum, and titanium. Tension test shall be done on the fitting material to determine the tensile properties such as yield strength and tensile strength. Fittings supplied under this specification shall be examined visually for surface discontinuities, surface checks, and mechanical marks.

• Butt weld pipe fitting is designed to be welded on site at its end(s) to connect pipe(s) together and allow change in direction or pipe diameter, or branching or ending.
• This fitting then becomes part of a system for transporting fluids (oil, gas, steam, chemicals, …) in a safe and efficient manner, over short or long distances.
• Other types of fittings can be threaded or socket welded.

Several grades of austenitic stainless steel alloys are included in this specification. Grades are designated with a prefix, based on the applicable ASTM/ASME or MSS standards. For each of the WP stainless grades, several classes of fittings are specified, to indicate whether seamless or welded construction was utilized. Class designations are also utilized to indicate the nondestructive test method and extent of nondestructive examination. A general summary of the fitting classes applicable to all WP grades of stainless steel follows. There are no classes for the CR grades.

ASTM A403 Fitting Classes for WP Grades

The name which is completely remarkable in the field of producer and supplier of the SS 304/304L/304H Butt weld Fittings is Pankh Stainless. They take care of each and everything from production to testing and packaging and in the last delivery of the product by maintaining the distinctive quality. SS Butt weld Fittings consist of tees, eccentric reducers, concentric reducers, and long radius elbow, etc. This type of fittings plays an important role in the industrial system of piping to mechanically join equipment to the system, to change direction and branch off. These tolerances and dimensions are explained as per ASME standard B16.9.

The benefits of weld fittings are continuous metal structure adds strength to the piping system, Buttweld fittings offers seamless flow inside the pipe with pipe matching offer schedule. It offers gradual transition via welded pipe fitting by a full penetration weld and properly fitted LR 90 Elbow concentric reducer and reducer etc. It offers a much vigorous connection. There are many types of fittings but they are scheduled as the pipe and same in all sizes. The finish of all butt weld fittings is slant, 5mm for ferritic stainless steel, exceeding wall thickness 4 mm for austenitic stainless steel. To make a Butt Weld these beveled ends are required.

CHEMICAL COMPOSITION OF SS 304/304L/304H SEAMLESS AND WELDED PIPE FITTINGS.

PHYSICAL PROPERTIES OF ASTM A403 STAINLESS STEEL 304/304L/304H PIPE FITTINGS.

Stainless Steel 304 / 304L / 304H Butt weld Fittings Application Industries

Our ASTM A403 WP304 / 304L / 304H Stainless Steel Butt weld Pipe Fittings are used in a wide range of applications and various industries. Below are a few of them:

Application:

Fittings are used wherever liquids, gases, chemicals and other fluids are created, processed, transported, or used. Range of industries is very wide, as shown below:

• Energy related. Oil and gas industries, including upstream (exploration and production), midstream (transportation by ships, pipeline, rail, trucks; storage and wholesale) and downstream (refining into fuels or chemicals; marketing and distribution). Power plants using fossil or nuclear fuels. Geothermal energy for harnessing heat from the earth.
• Food and beverage production. From basic ingredients to elaborate desserts. From milk, to juices and other beverages. Cold chain to keep produce fresh, drinks and frozen foods at a set temperature. Desalination plants to transform seawater into drinking water for arid areas and various tropical islands.
• Pharmaceuticals and biotech production. Medicines and vaccines that treat illnesses and help restore bodies and minds to their top conditions.
• Semiconductor manufacturing: Microchips that go into all electronics, including smartphones, tablets, computers, television sets, telecom networks, …
• Pulp and paper production. Newsprint, glossy paper, cardboard boxes, books, writing paper,
• Production of construction materials and plastics. From roofing materials, to glassmaking for windows, to copper wiring for transporting electricity, and various plastics throughout houses and office buildings.