ASTM A 403 WP TP 3016L H Butt Weld Fittings Manufacturer

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.

ASTM A403 Fitting Classes for WP Grades

• 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 A 403 WP TP 316L H is a specific grade of stainless steel and the fittings made from this material are used in various industries, particularly where corrosion resistance and durability are crucial. Some common uses include:

Chemical Processing: In industries handling corrosive chemicals, these fittings are used for their excellent resistance to acids, alkalis, and other chemical compounds.

Oil and Gas: They’re utilized in oil refineries and gas processing plants due to their ability to withstand harsh environments and corrosive substances present in oil and gas.

Food and Beverage Industry: Stainless steel fittings are ideal for food processing and dairy industries due to their hygienic properties and resistance to corrosion from food acids and cleaning solutions.

Pharmaceuticals: Stainless steel fittings are preferred in pharmaceutical manufacturing where maintaining product purity and resistance to corrosion is essential.

Petrochemical Industry: They are commonly used in pipelines for transporting various petrochemical products due to their corrosion resistance.

Water Treatment: These fittings are utilized in water treatment plants where resistance to corrosion from water and chemicals used in treatment processes is necessary.

Construction: In structural and architectural applications where durability and resistance to weathering elements are required, stainless steel fittings find use in buildings and infrastructure.

Power Generation: In power plants (both conventional and nuclear), these fittings are used in piping systems for their resistance to corrosion and high temperatures.

Marine Industry: Stainless steel fittings are favored in the marine industry due to their resistance to saltwater corrosion.

Automotive: In some automotive applications where corrosion resistance is crucial, these fittings might be used, such as in exhaust systems.

The ASTM A 403 WP TP 316L H Butt Weld Fittings, being made from this specific grade of stainless steel, offer enhanced corrosion resistance, particularly in environments containing chlorides, making them suitable for a wide array of industrial applications.