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Carbon Steel Buttweld Fittings

ARK Stainless Inc. is a trusted manufacturer and supplier of premium-grade Carbon Steel Buttweld Fittings, specifically designed to withstand high pressure and stress in a wide range of industrial applications. These fittings are known for their durability, strength, and cost-effectiveness, making them an ideal choice for both heavy-duty commercial operations and household installations.

Our Carbon Steel fittings are available in various configurations such as Seamless, ERW, Welded, and Fabricated, and can be customized in terms of size, shape, thickness, and dimensions based on client specifications. These fittings perform efficiently in moderate to high-temperature environments and offer excellent corrosion and oxidation resistance. Manufactured in accordance with ASTM B366 / ASME SB366 and dimensional standards including ASME B16.9, B16.28, and MSS-SP-43, Carbon Steel Buttweld Fittings are widely used in industries like chemical processing, acid manufacturing, construction, and infrastructure development. We also provide value-added finishes like hot-dip galvanizing, epoxy coating, and sandblasting for enhanced protection and performance.

Carbon Steel Welded (ERW) Pipe Fittings

GRADE SCHEDULE NOM. PIPE SIZE
ASTM/ASME A234 WPB / A860 – MSS-SP-75 WPHY 42 / 46 / 52 / 56 / 60 / 65 / 70 Low temperature Steel: A420 WPL3 / A420 WPL6  SCH 10S 1/2″ – 24″
SCH 40S 1/2″ – 12″

Carbon Steel Seamless Pipe Fittings

GRADE SCHEDULE NOM. PIPE SIZE
ASTM/ASME A234 WPB / A860 – MSS-SP-75 WPHY 42 / 46 / 52 / 56 / 60 / 65 / 70 Low temperature Steel: A420 WPL3 / A420 WPL6 SCH 10S 1/2″ – 12″
SCH 40S 1/2″ – 12″
SCH 80S 1/2″ – 12″

Carbon Steel Buttweld Fittings

They are available variant type’s differentiated based on shapes and functions. Like crosses are used to make the four-way flow in the pipelines. Reducers are used for altering the size of the pipe and pipe caps are being used for covering the end of the piping system. Pipe couplings are used to connect two pipes together. Likewise, tees are there to distribute or collect the running flow in the pipelines. In this way, there some other types of pipe fittings like pipe bends for changing the direction and 45-degree elbows are also used for changing the directions but only by 45 degrees angle.
Carbon Steel Buttweld Fittings also submits some of the documentation and certifications for the authenticity and quality check. Some of them are third party inspection reports, 100% radiography test certificate, 100% raw materials purity certificates, etc.


Specification of Carbon Steel Buttweld Fittings
  • Standard: ASTM A234 Gr WPB, ST37.2, ST35.8 Buttweld Fittings
  • Dimensions: ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS1560, BS10, ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799
  • Size: Seamless Butt Weld Fittings: 1/2" - 10" | Welded Butt Weld Fittings: 1/2" - 48"
  • Schedule: SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS (Available with NACE MR 01-75)
  • Bending Radius: R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
  • Type: Seamless / ERW / Welded / Fabricated
  • Grades: ASTM A860 / ASME SA860 WPBW, WPHY 42, WPHY 46, WPHY 52, WPHY 60, WPHY 65 & WPHY 70
  • Low Temperature Grades: A420 WPL3 / A420 WPL6 Buttweld Fittings
  • Thickness: 20 Swg, 18 Swg, 16 Swg, 14 Swg, 12 Swg, 10 Swg & Sch. 10, Sch. 40, Sch. 80 etc.