A ButtWeld term is representation of type of welding jointing method; adopted in joining two different products. These fittings are made from Seamless Pipe or Welded Pipes through a forming process. The forming process is of two types, 1 – Hot Formed & 2 – Cold Formed. Again these fittings become integral system of any piping design.
 

Common BW Fittings Types:  
SEAMLESS BW Fittings (1/2” to 24”)
WELDED BW Fittings    (26”   to 48”)

• Long Radius 90º & 45º Elbows
• Long Radius 180º Returns
• Short Radius 90º & 45º Elbows
• Short Radius 180º Returns
• Straight Tees
• Reducing Tees
• Concentric Reducers
• Eccentric Reducers
• Crosses
• Caps
• Bends 3D & 5D  

Size Range:  (Larger sizes are available on request basis)
Wall thickness: SCH-10 to SCH-XXS

Common Materials:
Carbon Steel BW Fittings :
Specifications: ASTM SA234 WPB

Carbon steel Low Temperature BW Fittings
Specifications:   SA420 WPL6 & WPL3

Carbon steel High Yield BW Fittings
Specifications:   SA860 WPHY42 / WPHY46 / WPHY 52 / WPHY 60 / WPHY 65 / WPHY70

Alloy Steel BW Fittings:
Specifications: SA234 Grades WP1 / WP5 / WP9 / WP11 / WP12 / WP22 & WP91

Stainless Steel BW Fittings
Specifications: ASTM A403 WP 304/L, WP 316/L, WP 347, WP 321
(Higher test grades Duplex/Super Duplex ASTM A815 / UNS S31803 / UNS S32750 are available on request)

Dimension / Tolerance Standards:
ASME B16.9, B16.28, MSS-SP25 / SP43 / SP75