Butt welding fittings are a type of pipe fittings used to connect pipes or other fittings together using a butt welding process. The process involves heating the ends of two pipes or fittings and then pressing them together to form a permanent, leak-proof joint. Here are some key details about butt welding fittings:
Materials: Butt welding fittings are commonly made from carbon steel, stainless steel, and alloy steel. The choice of material depends on the specific application, including the temperature, pressure, and chemical environment of the piping system.
Types: There are various types of butt welding fittings, including elbows, tees, reducers, caps, and crosses. Each type of fitting is designed to connect two or more pipes or fittings at different angles and configurations.
Sizes: Butt welding fittings are available in a wide range of sizes, typically ranging from ½ inch to 48 inches in diameter. The fittings are available in standard and custom sizes to meet the requirements of specific applications.
Manufacturing standards: Butt welding fittings are manufactured according to various industry standards, including ASME B16.9, MSS SP-43, and others. These standards specify the dimensions, materials, and testing requirements for butt welding fittings.
Surface finish: Butt welding fittings can be supplied with various surface finishes, including galvanizing, painting, coating, sandblasting, and polishing. The choice of surface finish depends on the specific application and the level of protection required.
Pressure ratings: Butt welding fittings are available in various pressure ratings, typically ranging from 150 to 2500 psi. The pressure rating depends on the size, material, and design of the fitting, as well as the specific application.
Overall, butt welding fittings are essential components of piping systems, particularly in industries such as oil and gas, chemical, and power generation. They are available in a variety of materials, sizes, and pressure ratings, and can be manufactured to meet various industry standards. By choosing the right type of butt welding fitting for a specific application, piping systems can be assembled quickly, safely, and efficiently.
| Product | Details |
| Type | Butt welding fittings |
| Sizes | 1/2" to 48" or larger |
| Schedule | Sch 10, Sch 20, Sch 30, Sch 40, Sch STD, Sch 80, XS, XXS |
| Material | Carbon steel, stainless steel, alloy steel, nickel alloys, titanium, and other materials available upon request |
| Standards | ASME B16.9, ASME B16.28, MSS SP-43, MSS SP-75, DIN 2605, DIN 2615, DIN 2616, DIN 2617, EN 10253, BS 1640, BS 1965, GB/T12459, GB/T13401, JIS B2311, JIS B2312, JIS B2313 |
| Types | Elbows (90°, 45°, 180°), Tee (Equal Tee, Reducing Tee), Reducers (Concentric and Eccentric), Caps, Crosses, lap joint stub ends, etc. |
| End Preparation | Beveled end, plain end, or grooved end |
| Surface Treatment | Black painting, anti-rust oil, hot-dip galvanized, electro-galvanized, epoxy coating, etc. |
| Applications | Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc. |
Butt welding fittings are manufactured to meet various standards set by organizations such as ASTM, ASME, MSS, and API. The following are some common standards used for butt welding fittings:
| SME/ ANSI Standard Pipe Fittings | ANSI B16.9-2012-Factory Made Wrought Steel Butt welding Fittings |
| ANSI B16.11-2005-Forged Fittings,Socket Welding and Threaded | |
| ANSI B16.25-2012-Butt welding Ends | |
| ANSI B16.28-1994 Wrought Steel Butt Welding Short Radius Elbows And Returns | |
| ANSI B16.49-2012 Factory Made Wrought Steel Butt welding Induction Bends for Transportation and Distribution Systems | |
| ANSI B36.19M 2004 Stainless steel pipe | |
| ANSI B36.10M 2004 Welded and Seamless Wrought Steel Pipe | |
| MSS SP Pipe Fittings | MSS SP-75-2004 Specification for High Test,Wrought,Butt Welding Fittings |
| MSS SP-25-1998 Marking System for Valves,Fittings,Flanges and Unions | |
| MSS SP-43-2008-Wrought and Fabricated Butt Welding Fittings for Low Pressure,Corrosion Resistant Applications | |
| EN Standard Pipe Fittings | BS EN 10253-1 Butt Welding Pipe Fittings Part 1:Wrought Carbon Steel for General Use and Without Specific Inspection Requirements |
| BS EN 10253-2 Butt welding pipe fittings part 2: Non alloy ferritic alloy steels with specific inspection requirements | |
| BS EN10253-3 Butt welding pipe fittings Part 3: Wrought austenitic and austenitic ferritic(duplex)stainless steels without specific inspection requirements | |
| BS EN 10253-4 Butt welding pipe fittings Part 4:Wrought austenitic and austenitic-ferritic(duplex)stainless steels with specific inspection requirements | |
| BS EN 10241 2000 Steel threaded pipe fittings | |
| DIN Standard Pipe Fittings | DIN 2605 part1 1991 Steel butt welding pipe fittings elbows and bends with reduced pressure factor |
| DIN 2605 part2 1995 Steel butt welding pipe fittings elbows and bends for use at full service pressure | |
| DIN 2609 1991 steel butt welding pipe fittings technical delivery conditions | |
| DIN 2615 part1 1992 steel butt welding pipe fittings tees with reduced pressure factor | |
| DIN 2615 part2 1992 steel butt welding pipe fittings Tees for use at full service pressure | |
| DIN 2616 part1 1991 steel butt welding pipe fittings eccentric reducers with reduced pressure factor | |
| DIN 2616 part2 1991 steel butt welding pipe fittings reducers for use at full service pressure | |
| DIN2617 1991 steel butt welding pipe fittings caps | |
| DIN 2982 screwed steel pipe fittings parallel nipples,taper nipples | |
| DIN 2986 threaded steel pipe fittings sockets | |
| DIN 28011 torispherical heads | |
| GOST Standard Pipe Fittings | GOST 17375-2001 carbon and low alloy steel butt welding fittings.Sharply curved bends type 3D(R=1,5 DN).Design |
| GOST 17376-2001 carbon and low alloy steel butt welding fittings.Tees.Design | |
| GOST 17378-2001 carbon and low alloy steel butt welding fittings reducers design | |
| GOST 17379-2001 carbon and low alloy steel butt welding fittings Elliptical caps Design | |
| GOST 17380-2001 carbon and low alloy steel butt welding fittings general specifications | |
| GOST 30753-2001 carbon and low alloy steel butt weldings fittings sharply curved bends type 2D(R=DN)design | |
| JIS Standard Pipe Fittings | JIS B2311-2009 steel butt welding pipe fittings for ordinary use |
| JIS B2312-1997 Steel butt welding pipe fittings | |
| JIS B2313-2009 steel plate butt welding pipe fittings | |
| JIS B2316-2007 steel socket welding pipe fittings | |
| ISO Standard | ISO 3419 Non-alloy and alloy steel butt welding fittings |
| ISO 5251 stainless steel butt welding fittings |
The choice of surface finish depends on the specific application and the requirements of the piping system.
Mainly surface finish for Butt Welding Fittings: Painting, Anti-corrosion coating, Thermal insulation coating, Galvanizing,......
Painting:
Anti-corrosion coating :
Thermal insulation coating:
Galvanizing ( Hot-dip galvanizing and cold galvanizing):
Plywood cases, Plywood pallets, Cartons, bare , or package customer required.
