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Buttweld Pipe Fittings

Product Range

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For all Buttweld Pipe Fittings Details: Size, Dimensions, Pressure Rating, Weight Chart, Dimensional Tolerances

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Materials & Grades

At Creative Piping Solutions, we specialize in manufacturing high-quality buttweld pipe fittings designed to meet the precise demands of industries worldwide. With a comprehensive size range from 1/2" to 48" in nominal pipe size (NPS) and wall thicknesses in various schedules (SCH 10, SCH 40, SCH 80, and more), our fittings are engineered to ensure perfect alignment and durability in critical applications. Manufactured to meet ASME B16.9 and MSS SP-43 standards, our fittings offer reliable tolerance controls for diameters, wall thicknesses, and end preparations, making them an ideal choice for high-performance piping systems.

Our product lineup includes a full selection of SS 304, SS 316, SS 316L, Carbon Steel, Alloy Steel, and Duplex and Super Duplex Stainless Steel fittings. We manufacture elbows, tees, reducers (concentric and eccentric), caps, crosses, stub ends, and laterals that meet stringent industry requirements. Each fitting undergoes strict quality control, including dimensional accuracy, heat treatment, and surface finish, to deliver maximum performance in applications such as oil and gas, petrochemical, power generation, and more. Creative Piping Solutions is committed to providing reliable buttweld fittings that meet the diverse needs of our global clients.

Buttweld Specifications

Specification Description
Size Range 1/2" to 48" Nominal Pipe Size (NPS)
Pipe Schedules SCH 5, SCH 10, SCH 20, SCH 40, SCH 80, SCH 120, SCH 160, SCH XXS
Manufacturing Standards
  • ASME B16.9 (for wrought steel fittings)
  • ASME B16.28 (for wrought steel short-radius elbows and returns)
  • MSS SP-43 (for stainless steel buttweld fittings)
  • ASTM standards for material grades (e.g., ASTM A403, A234, A182)
End Preparation
  • Beveled Ends for Welding (typically 37.5° ± 2.5° as per ASME B16.25)
  • Custom end preparations as required
Dimensional Tolerances
  • Outside Diameter (OD): ±1% for NPS > 1.5” or ±0.06 inches for NPS ≤ 1.5”
  • Center-to-End (Elbows and Tees): ±3 mm
  • Wall Thickness: As per pipe schedule
  • Bevel Angle: 37.5° ± 2.5°
Alignment Tolerances
  • Center-to-Center (Tees and Crosses): ±3 mm
  • Overall Length (Reducers): ±3 mm
  • Out-of-Roundness (Ovality): ±1% of OD
Surface Finish Mill Finish, Sand-Blasted, Pickled and Passivated for Stainless Steel
Heat Treatment Annealed, Normalized, Quenched, and Tempered, as per material and application requirements
Pressure Ratings Determined by the wall thickness and material grade, typically follows ASME pressure classes
Testing and Quality Control
  • Hydrostatic Testing
  • Radiographic (X-ray) Testing for weld integrity
  • Ultrasonic Testing
  • Dye Penetrant Testing for surface cracks
  • Hardness Testing
  • PMI (Positive Material Identification)
  • Dimensional and Visual Inspection
Certifications
  • Mill Test Certificate (MTC)
  • Third-Party Inspection Certificate
  • Material Test Reports
  • Non-Destructive Testing (NDT) Reports

Types of Buttweld Fittings

Elbow

Tee

Cross

Reducers

Stub Ends

End Caps

Pipe Bends

Materials & Grades

  • Stainless Steel

  • Carbon Steel

  • Alloy Steel

  • High Nickel Alloys

  • Duplex And Super Duplex Steel

Trade Name Grade UNS # Buttweld Fitings
304 WP304 S30400 A403* / SA403*
304L WP304L S30403 A403* / SA403*
304H WP304H S30409 A403* / SA403*
316 WP316 S31600 A403* / SA403*
316L WP316L S31603 A403* / SA403*
316H WP316H S31609 A403* / SA403*
321 WP321 S32100 A403* / SA403*
321H WP321H S32109 A403* / SA403*
347 WP347 S34700 A403* / SA403*
347H WP347H S34709 A403* / SA403*
317L WP317L S31703 A403* / SA403*
  • Industry Standard Designations: 5S, 10S, 40S, 80S per B36.19
  • Special Wall Thicknesses: Customer-specific nominal and minimum wall thicknesses are also available.
  • Non standard OD & ID: are available.
Trade Name Grade UNS # Buttweld Fittings Specification
Carbon Steel WPB K03006 A234 / SA234
Carbon Steel WPC K03504 A234 / SA234
Carbon Steel WPR K02000 A234 / SA234
Low Temp Carbon Steel WPL6 K02700 A420 / SA420
High Yield Carbon Steel WPHY42 - A860 / SA860
High Yield Carbon Steel WPHY46 - A860 / SA860
High Yield Carbon Steel WPHY52 - A860 / SA860
High Yield Carbon Steel WPHY60 - A860 / SA860
High Yield Carbon Steel WPHY65 - A860 / SA860
High Yield Carbon Steel WPHY70 - A860 / SA860
  • Industry Standard Designations: 5, 10, 40, 80, 160, XXS as per ASME B36.10.
  • Special Wall Thicknesses: Customer-specific nominal and minimum wall thicknesses are also available.
  • Non standard OD & ID: Available upon request.
Trade Name  Seamless Grade Welded Grade Classes Buttweld Fitting
1 1/4 Chrome  WP11 WP11W 1, 2 and 3 A234 / SA234
2 1/4 Chrome  WP22 WP22W 1 and 3 A234 / SA234
5 Chrome  WP5 WP5W 1 and 3 A234 / SA234
9 Chrome  WP9 WP9W 1 and 3 A234 / SA234
P91 WP91 WP91W ---- A234 / SA234
  • Materials in industry standard designations: STD, 40, XH, 60, 80, 100, 120, 140, 160, XXH
  • Special Wall Thicknesses: Customer-specific nominal and minimum wall thicknesses are also available.
  • Non standard OD & ID: Available upon request.
Trade Name UNS # Nickel Alloy Butweld Fittings
Alloy 20 N08020 B/SB366 Grade WP20CB
Nickel 200 N02200 B/SB366 Grade WPN
Nickel 201 N02201 B/SB366 Grade WPNL
Monel 400 N04400 B/SB366 Grade WPNC
Inconel 600 N06600 B/SB366 Grade WPNCI
Inconel 625 N06625 B/SB366 Grade WPNCMC
Incoloy 800 N08800 B/SB366 Grade WPNIC
Incoloy 800H N08810 B/SB366 Grade WPNIC10
Incoloy 800HT N08811 B/SB366 Grade WPNIC11
Incoloy 825 N08825 B/SB366 Grade WPNICMC
Trade Name Grade UNS # Buttweld Fittings Specification
Duplex Stainless Steel UNS S31803 S31803 A815 / SA815
Duplex Stainless Steel UNS S32205 S32205 A815 / SA815
Super Duplex Stainless Steel UNS S32750 S32750 A815 / SA815
Super Duplex Stainless Steel UNS S32760 S32760 A815 / SA815
Super Duplex Stainless Steel UNS S32550 S32550 A815 / SA815

Application Industries

  • Oil and Gas Industry
  • Petrochemical Industry
  • Power Generation
  • Chemical Industry
  • Water Treatment and Desalination
  • Pharmaceutical Industry
  • Food and Beverage Industry
  • Mining and Mineral Processing
  • Shipbuilding and Marine Applications
  • Aerospace and Defense
  • Construction and Infrastructure
  • Automotive and Transportation