🔷 45° Elbow (Long Radius & Short Radius) – Butt Weld Pipe Fitting

Manufacturer, Supplier & Exporter – VikTech Fittings

🔹 Product Overview

VikTech Fittings is a leading manufacturer, supplier, and exporter of premium quality 45° Butt Weld Elbows manufactured in compliance with international standards such as ASME B16.9, ASME B16.28, DIN, EN, and ISO.

A 45° elbow is a butt weld pipe fitting used to change the direction of flow in a piping system by 45 degrees. It is widely used where gradual directional change is required to reduce pressure drop, turbulence, and flow resistance.

Compared to a 90° elbow, a 45° elbow provides smoother flow transition and is often preferred in long pipeline systems.

🔹 Detailed Technical Explanation

1️⃣ What is a 45° Butt Weld Elbow?

A 45° elbow is a curved pipe fitting designed to redirect the flow of fluids, gases, steam, slurry, or chemicals at a 45-degree angle.

It is welded to the pipe by butt welding method, creating a permanent, high-strength, leak-proof joint.

These elbows are mainly used in:

• High-pressure systems

• High-temperature systems

• Large diameter pipelines

• Industrial process lines

Because of its moderate angle, it reduces turbulence compared to sharper directional changes.

2️⃣ Types of 45° Elbows

🔸 Long Radius (LR) 45° Elbow

• Radius = 1.5 × Nominal Pipe Size (1.5D)

• Provides smoother flow

• Lower pressure drop

• Reduced erosion

Example:
For 6” pipe → Radius = 9”

✔ Recommended for: Oil & Gas pipelines, petrochemical plants, power plants

🔸 Short Radius (SR) 45° Elbow

• Radius = 1 × Nominal Pipe Size (1D)

• Compact design

• Used where space constraints exist

• Slightly higher pressure drop compared to LR

Example:
For 6” pipe → Radius = 6”

✔ Recommended for: Compact piping layouts and equipment skid systems

🔹 Manufacturing Process

At VikTech Fittings, 45° elbows are manufactured using advanced forming techniques:

• Hot induction forming

• Cold forming

• Mandrel bending for precise radius

• Heat treatment for stress relief

• Shot blasting

• Edge beveling as per ASME B16.25

This ensures:

✔ Uniform wall thickness
✔ Accurate dimensions
✔ Smooth internal surface
✔ Excellent mechanical strength

🔹 Technical Specifications

✔ Standards

• ASME B16.9

• ASME B16.28

• MSS-SP-75

• DIN 2605

• EN 10253

• ISO

✔ Size Range

• ½” NB to 48” NB

• Larger sizes available on request

✔ Wall Thickness

• SCH 10

• SCH 20

• SCH 30

• SCH 40

• SCH 60

• SCH 80

• SCH 120

• SCH 160

• XXS

✔ End Type

• Beveled Ends for Butt Welding

🔹 Material Grades Available

🔸 Carbon Steel

• ASTM A234 WPB

• ASTM A420 WPL6

• IS 2062

Applications:

• Oil pipelines

• Water lines

• Structural applications

🔸 Stainless Steel

• ASTM A403 WP304

• ASTM A403 WP304L

• ASTM A403 WP316

• ASTM A403 WP316L

Applications:

• Chemical plants

• Food processing

• Pharmaceutical industries

🔸 Alloy Steel

• ASTM A234 WP11

• ASTM A234 WP22

• ASTM A234 WP91

Applications:

• High temperature steam lines

• Power generation

🔸 Duplex & Super Duplex

• ASTM A815 UNS S31803

• ASTM A815 UNS S32750

Applications:

• Offshore platforms

• Marine systems

• High chloride environments

🔹 Applications of 45° Elbow

45° Butt Weld Elbows are widely used in:

✔ Oil & Gas Industry
✔ Refineries
✔ Petrochemical Plants
✔ Power Plants
✔ Chemical Processing Units
✔ Water Treatment Plants
✔ Marine & Offshore Installations
✔ Infrastructure & Construction Projects

🔹 Advantages of 45° Butt Weld Elbow

✔ Smooth flow transition
✔ Reduced turbulence
✔ Lower pressure drop
✔ Strong welded joint
✔ High pressure & temperature resistance
✔ Long operational life
✔ Suitable for critical industrial applications

🔹 Quality Testing & Inspection

All 45° elbows supplied by VikTech Fittings undergo strict quality control:

• Visual Inspection

• Dimensional Inspection

• Ultrasonic Testing

• Hydrostatic Testing

• PMI Testing

• Radiographic Testing (if required)

• Third Party Inspection (TPI) available

Mill Test Certificate (MTC) provided as per EN 10204 3.1 / 3.2.

🔹 Surface Finish

• Black Painted

• Anti-rust Oil Coated

• Galvanized

• Pickled & Passivated (for Stainless Steel)

🔹 Packaging & Supply

• Wooden crates

• Wooden pallets

• Bubble wrapped

• Export quality packaging

• Marking as per client requirement

We supply:

✔ PAN India
✔ Middle East
✔ Africa
✔ Europe
✔ Southeast Asia

🔹 Why Choose VikTech Fittings?

✔ Manufacturer & Bulk Stockist
✔ Competitive Pricing
✔ Ready Stock Available
✔ Fast Delivery
✔ Export Documentation Support
✔ Custom Manufacturing Available