High-Quality Steel Pipe Elbows for Industrial Piping Systems - Image 1

High-Quality Steel Pipe Elbows for Industrial Piping Systems - Image 2

High-Quality Steel Pipe Elbows for Industrial Piping Systems

Our pipe elbows are essential fittings used to change the direction of fluid flow in piping systems. Engineered for precision and durability, they are available in various angles (45°, 90°, 180°) and radii (Long Radius & Short Radius) to meet diverse engineering requirements across petroleum, chemical, power, and construction industries.

Size Range: Seamless (1/2″ – 24″) | ERW / Welded (1/2″ – 48″).
Standards: ASME B16.9, ASME B16.28, DIN, JIS, and GB.
Materials: Carbon Steel, Stainless Steel, and Alloy Steel.
Wall Thickness: SCH5 to XXS (3mm – 40mm).
Key Features: Precise dimensions, excellent flow dynamics, and multiple coating options (Black paint, Varnish, Galvanizing).

Category: Pipe Elbow

Description

1. Product Overview

A Pipe Elbow is a critical fitting installed between two lengths of pipe or tubing to allow a change of direction, usually a 90° or 45° angle. When the ends differ in size, the fitting is called a reducing elbow. Our elbows are manufactured to provide smooth flow with minimal resistance, ensuring the integrity of high-pressure and high-temperature pipeline systems.

2. Classification

By Angle:

45 Degree Elbow: Used for smaller directional changes.
90 Degree Elbow: The most common angle for standard piping layouts.
180 Degree Elbow (Return): Used to reverse the flow direction completely.

By Radius of Curvature:

Long Radius (LR) Elbow: The radius of curvature is 1.5 times the nominal diameter (R=1.5D). It provides lower pressure drop and is used for standard applications.
Short Radius (SR) Elbow: The radius of curvature is equal to the nominal diameter (R=1.0D). It is typically used in tight spaces where room is limited.

3. Dimensions Table (ASME B16.9)

NPS	Outside Diameter (mm)	Long Radius (LR)			Short Radius (SR)
NPS	Outside Diameter (mm)	90° (A)	45° (B)	180° (O)	90° (A)	180° (O)
1/2	21.3	38	16	76	–	–
3/4	26.7	38	19	76	–	–
1	33.4	38	22	76	25	51
1-1/4	42.2	48	25	95	32	64
1-1/2	48.3	57	29	114	38	76
2	60.3	76	35	152	51	102
2-1/2	73.0	95	44	191	64	127
3	88.9	114	51	229	76	152
4	114.3	152	64	305	102	203
5	141.3	191	79	381	127	254
6	168.3	229	95	457	152	305
8	219.1	305	127	610	203	406
10	273.1	381	159	762	254	508
12	323.9	457	191	914	305	610
14	355.6	533	222	1067	356	711
16	406.4	610	254	1219	406	813
18	457.2	686	286	1372	457	914
20	508.0	762	318	1524	508	1016
24	609.6	914	381	1829	610	1219
30	762.0	1143	478	2286	762	1524
36	914.4	1372	572	2743	914	1829
48	1219.2	1829	762	3658	1219	2438

4. Manufacturing Standards & Materials

Category	Standard Code	Details / Materials
ASME	ASME B16.9	Factory-Made Wrought Buttwelding Fittings
ASME	ASME B16.28	Wrought Steel Buttwelding Short Radius Elbows and Returns
DIN	DIN 2605	Steel Butt-Welding Pipe Fittings – Elbows and Bends
JIS	JIS B2311 / B2312	Steel Butt-Welding Pipe Fittings
Materials	Carbon Steel	ASTM A234 WPB, WPC; ASTM A105; ASTM A420 WPL6, WPL3; ST37.0, ST45.8, ST52.4.
	Stainless Steel	ASTM A403 WP304, 304L, 310, 310S, 316, 316L, 321.
	Alloy Steel	ASTM A234 WP1, WP12, WP11, WP22, WP5, WP23, WP9, WP91, WP911.

5. Manufacturing Process

Our pipe elbows undergo a multi-stage production process to ensure uniform wall thickness and structural strength:

Key Steps:
Raw Material Cutting → Heating → Forming (Hot Pushing/Cold Forming) → Heat Treatment → Calibration → End Beveling → Non-Destructive Testing (NDT) → Coating/Marking → Packing.

Technical Workflow: Cold/Hot Forming, Beveling, and Inspection

6. Applications

Pipe elbows are indispensable in infrastructure projects where fluid direction must be diverted safely:

Petroleum and Natural Gas transmission.
Chemical and Petrochemical processing.
Electric Power generation and Thermal plants.
Shipbuilding and Marine engineering.
Water treatment and Urban construction.