Steel Pipe Fittings

ASTM A234 is the standard of pipe fittings material,it indicates the materials properties of different kinds of carbon steel and alloy steel,WPB is one of the steel grade in this standard.W means weldable,P means pressure,B is grade b,refer to the minimum yield strength,like the astm A106 A53,Gr.B or API 5L Gr.B.A234 WPB is the most common carbon steel pipe fittings material.

It covers steel fittings of seamless and welded types. Steel Pipe fittings are applied in pressure pipelines and in pressure vessel fabrications.

These fittings material consist of killed steel, forgings, bars, plates, seamless or HFW (fusion welded) pipe products, with filler metal added.

ASTM A234 includes wrought carbon steel and alloy steel fittings of seamless and welded construction covered by the latest revision of ASTM B16.9, B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, and MSS-SP-97. etc.

As we know, ASTM A234 steel pipe fittings are used in pressure piping and in pressure vessel fabrication, for services at moderate and elevated temperatures. The fittings material in this standard consist of killed steel, forgings, bars, plates, seamless or fusion-welded tubular products with filler metal added.

In this standard it covers the specification of elbows, tees, reducers, caps and cross, it usually adopt butt welding ends.

ASTM A234 specification has many grades, such as WPB, WPC, WP5, WP9 WP11, WP12, WP22, WP91 and so on.

In these standard Grade WPB is the most common material used for medium and high temperature pipelines. W means weldable, P means pressure, B is grade b, refer to the minimum yield strength.

Grade WPB fittings made from the steel pipes or plates maximum C is 0.35%.

Forging fittings Carbon content 0.35% maximum and Silicon content 0.35% maximum, no minimum.

For the seamless steel pipe fittings refers to the fittings raw material from the seamless steel pipes and tubes. Thus the welded steel pipe fittings covers the fittings raw material from welded steel pipes.

Monel 400 is a nickel-copper alloy of about 67% Ni and 23% Cu.

ALLOY400 is a single-phase solid-solution Ni-Cu alloy with excellent corrosion resistance in a wide range of marine and chemical environments and has freedom from chloride induced stress-corrosion cracking.

Valued for its high strength and corrosion-resistant properties, Monel 400 is available from Continental Steel in multiple forms for use in a variety of end uses.

ALLOY400 is a single-phase solid-solution Ni-Cu alloy with good mechanical properties from sub-zero temperatures up to about 550 ¡ãC (1020 ¡ãF) and is approved for pressure vessels with wall temperatures from -10 to 425 ¡ãC (14 to 800 ¡ãF) according to VdTUV-Wbl. 263 and up to 900 ¡ãF (480 ¡ãC) according to ASME Boiler and Pressure Vessel Code.

Monel 400 (also known as alloy 400) is an attractive option for industries where corrosion resistance is of the highest priority.

Monel 400 is resistant to both steam and seawater as well as highly caustic solutions such as sulfuric, hydrochloric, and hydrofluoric acids when they are deaerated.

It exhibits excellent weldability and can withstand very large amounts of pressure and weight.

The alloy has great mechanical properties at subzero temperatures, and with a melting point of 2370¡ã ¨C 2460¡ã F, products can be used at temperatures up to 1000¡ã C.

Monel 400 works in a range of acidic and alkaline environments and features excellent ductility and thermal conductivity.

Its properties make it perfect for heavy-duty applications and those that require a high melting point and toughness under the harshest conditions.

Monel 400 is essential in heat exchangers, chemical plant equipment, and boiler feeders. It is ideal in wire or rod form and is excellent for trolling wire due to its resistance to seawater.

Monel 400 provide superior quality for different types of mechanical, and general engineering applications.

Its toughness lends itself to use in nuclear power plants, mining, cement, and the oil and gas industry.

Monel 400 is corrosion resistant to most salts, water, alkalis, organic substances, food products, and atmospheric conditions at both normal and elevated temperatures.

This is a nickel-copper, solid-solution alloy that is hardenable only by cold working. It has high strength and toughness over a wide temperature range and is resistant to many corrosive environments.

The alloy is used in many fields, especially marine and chemical processing.

Typical applications are valves and pumps; pump and propeller shafts; marine fixtures and fasteners.

ALLOY400 is a single-phase solid-solution Ni-Cu alloy with excellent corrosion resistance to a wide range of media.

Hastelloy X pipe bend is corrosion resistant, heat resistant and oxidation resistant, being able to withstand reducing or neutral atmospheres and oxidation.