Buttweld Fittings

Seamless elbows, tees, and reducers engineered to ensure optimal fluid trajectory in pipeline architectures.

As a leading manufacturer and global supplier of high-integrity industrial pipeline components, Nucleus Forge provides premium-grade buttweld fittings built for seamless integration and maximum flow efficiency. Manufactured in compliance with global quality specifications, our extensive portfolio delivers superior structural strength and corrosion resistance for oil & gas, petrochemical, and power generation systems worldwide.

Types of Buttweld Fittings

Elbow

Elbow

SPECIFICATION:

Size: 1/2″ to 24″

Type: 90° LR/SR, 45° Elbow, 180° LR/SR Elbow

Schedule: SCH5 to XXS

End Connection: Butt-Weld

Tee

Tee

SPECIFICATION:

Size: 1/2″ to 24″

Type: Equal Tee, Reducing Tee

Schedule: SCH5 to XXS

End Connection: Butt-Weld

Endcap

Endcap

SPECIFICATION:

Size: 1/2″ to 24″

Type: Pipe End Cap

Schedule: SCH5 to XXS

End Connection: Butt-Weld

Stub End

Stub End

SPECIFICATION:

Size: 1/2″ to 24″

Type: Long Pattern, Short Pattern Stub End

Schedule: SCH5 to XXS

End Connection: Butt-Weld

Cross

Cross

SPECIFICATION:

Size: 1/2″ to 24″

Type: Equal Cross, Unequal Cross

Schedule: SCH5 to XXS

End Connection: Butt-Weld

Reducer

Reducer

SPECIFICATION:

Size: 1/2″ to 24″

Type: Concentric Reducer, Eccentric Reducer

Schedule: SCH5 to XXS

End Connection: Butt-Weld

Material Grades of Buttweld Fittings

Stainless Steel

Offers outstanding oxidation prevention, high-temperature strength, and chemical endurance for hygienic and aggressive process piping lines.

  • ASTM A403 WP304/304L, WP316/316L
  • ASTM A403 WP321/321H, WP347/347H
  • ASTM A403 WP317/317L, WP309/310S

Carbon Steel

Engineered for high-yield durability, rugged mechanical installations, and industrial structural fluid transmission systems.

  • ASTM A234 WPB / WPC
  • ASTM A420 WPL6 / WPL3
  • ASTM A860 WPHY 42 / 46 / 52 / 60 / 65 / 70

Alloy Steel

Specially alloyed with chromium and molybdenum elements to resist structural deformation under elevated thermal environments.

  • ASTM A234 WP1 / WP5 / WP9
  • ASTM A234 WP11 / WP12 / WP22
  • ASTM A234 WP91 / WP92

Duplex & Super Duplex Steel

Combines austenitic and ferritic structures to deliver exceptional yield strength and superior resistance to chloride-induced stress corrosion cracking.

  • ASTM A815 UNS S31803 (Duplex 2205)
  • ASTM A815 UNS S32205 (Dual Certified)
  • ASTM A815 UNS S32750 / S32760 (Super Duplex)

Nickel & High-Nickel Alloys

Engineered for extreme performance in highly aggressive chemical processing, acid handling, and severe high-temperature environments.

  • ASTM B366 Monel 400 (UNS N04400)
  • ASTM B366 Inconel 600 / 625 (UNS N06600 / N06625)
  • ASTM B366 Incoloy 800 / 825, Hastelloy C276