Buttweld Steel Elbows

Standard: ASME B16.9, ASME B16.28, GOST, DIN 2605, MSS SP-75
Size Range: 1/2″ – 24″ (Seamless); 26″ – 72″ (Welded/Fabricated)
Radius Type: Long Radius (LR 1.5D) & Short Radius (SR 1.0D)
Wall Thickness: SCH 10S, STD, SCH 40, SCH 80, SCH XS, SCH 160, SCH XXS
Materials: Carbon (ASTM A234 WPB/WPC), Stainless (304/316L), Alloy Steel (WP11/22/91)
End Preparation: Precision Beveled Ends (ASME B16.25)
Certification: EN 10204 3.1 Mill Test Certificate (MTC)
Availability: Factory Direct Supply & Custom Fabrication Supported

Buttweld Steel Pipe Elbows: 45°, 90°, 180° (ASME B16.9 / B16.28)

JS FITTINGS is a premier manufacturer and supplier of high-performance buttweld steel pipe elbows for critical piping systems. Our elbows are engineered to change flow direction with minimal pressure loss, providing maximum structural integrity in high-pressure oil, gas, chemical, and water treatment applications.

Buttweld Pipe Elbows Types

To meet diverse engineering requirements, we specialize in manufacturing elbows categorized by angle and bend radius:

By Degrees (Angle)

90° Elbow: Standard fitting for a right-angle change in flow.
45° Elbow: Used for smoother flow transitions with less turbulence.
180° Return: Ideal for heat exchangers and boiler coils to reverse flow direction.

By Radius (Standards)

Long Radius (LR)Elbows: Radius equals 1.5 times NPS (R=1.5D). Default for industrial flow.
Short Radius (SR)Elbows: Radius equals NPS (R=1.0D). Essential for compact spaces (ASME B16.28).

Buttweld Steel Pipe Elbows 45°, 90°, 180° manufacturer

Technical Specifications & Range

As a dedicated factory, JS FITTINGS ensures every elbow complies with international dimensional and pressure ratings:

Specification	Details
Size Range	1/2″ to 24″ (Seamless), 26″ to 72″ (Welded/Fabricated)
Wall Thickness	Sch 10S, STD, 40, 80, XS, 160, XXS (As per ASME B36.10/B36.19)
Design Standards	ASME B16.9, B16.28, DIN 2605, JIS B2312, MSS SP-75
End Preparation	Beveled Ends as per ASME B16.25 (Precision CNC machined)
Materials	Carbon Steel (WPB/WPL6), Alloy Steel (WP11/WP22/WP91), Stainless Steel (304L/316L)

Manufacturing Excellence at JS FITTINGS

Our production line combines automated precision with strict quality control to prevent wall thinning on the extra-dos (outer curve):

Hot Mandrel Forming: Induction heating ensures uniform wall thickness and circularity throughout the bend.
Cold Forming: Applied to stainless steel to maintain metallurgical properties and a smooth surface finish.
Heat Treatment: Post-forming treatment (Normalizing/Annealing) restores mechanical properties and relieves internal stress.

carbon steel buttweld pipe elbow producess

Our Quality Assurance

For distributors and stockists, we provide a complete documentation package to ensure 100% traceability:

EN 10204 3.1 Mill Test Certificates (MTC) provided with every shipment.
Raw material heat number traceability and PMI testing.
Third-Party Inspection: We welcome SGS, BV, or Intertek audits for bulk orders.
Seaworthy packaging (Wooden cases/pallets) with moisture-proof protection.

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FAQ

Q: What is the benefit of a Long Radius (LR) elbow over a Short Radius (SR) elbow?

A: LR elbows (R=1.5D) offer lower friction resistance and less pressure drop compared to SR elbows (R=1.0D). LR is the default for most industrial piping, while SR is reserved for tight-clearance applications.

Q: How does JS FITTINGS prevent wall thinning during production?

A: We utilize the hot mandrel induction forming process. By expanding the pipe over a tapered mandrel while heating, we maintain consistent wall thickness on both the intrados (inner curve) and extrados (outer curve).

Q: Can JS FITTINGS provide custom bevel angles?

A: Yes. While ASME B16.25 is our standard, we can customize bevels (including compound bevels) to match your specific Welding Procedure Specifications (WPS).