What is a mandrel bend?

A mandrel bend is created using a flexible internal support (a mandrel) that prevents the tubing from collapsing or kinking during the bending process. This results in a smooth, consistent inner diameter throughout the bend, which is important for optimal exhaust flow.

What is SS321 stainless steel used for?

SS321 stainless steel is commonly used in high-temperature applications like exhaust systems. Its composition makes it resistant to oxidation and corrosion, especially at elevated temperatures, and it maintains good strength.

What does '1D radius' mean for this bend?

A 1D radius means the center of the bend is located one diameter of the tubing away from the outside edge of the tube. For a 3.5-inch tube, this creates a relatively tight bend, which can be useful for fitting exhaust components into compact spaces.

Specifications

Brand: Stainless Bros
Part #: 701-08956-4100
UPC: 701-08956-4100

Stainless Bros 3.5in SS321 90 Deg Mandrel Bend Elbow - 1D Radius 16GA/.065in Wall (Leg)

Name: Stainless Bros 3.5in SS321 90 Deg Mandrel Bend Elbow - 1D Radius 16GA/.065in Wall (Leg)
Brand: Stainless Bros
SKU: stainless-bros-stainless-bros-3-5in-ss321-90-deg-mandrel-bend-elbow-1d-radius-16-t14-548485
Price: 87.03 USD
Availability: BackOrder

$87.03

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

You get one Stainless Bros 3.5in SS321 90 degree mandrel bend elbow, perfect for custom exhaust fabrication.

Key Features

You receive one 3.5-inch 90-degree mandrel bend elbow.
Constructed from SS321 stainless steel for high-temperature resistance and corrosion protection.
Features a 1D radius bend, where the center of the bend is one tube diameter from the outer wall.
Tubing has a 16-gauge wall thickness, equivalent to .065 inches.
Mandrel bending maintains consistent tube diameter and shape through the bend for improved flow.

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About this part

Product Details

This listing is for one Stainless Bros 3.5-inch 90-degree mandrel bend elbow. It's made from SS321 stainless steel, which is a popular choice for exhaust systems because it handles high temperatures well and resists corrosion. The tubing has a 16-gauge wall thickness, or .065 inches, and features a 1D radius bend, meaning the center of the bend is one diameter away from the tube's outer wall. This type of bend is often used in custom exhaust fabrication when space is tight or a specific routing is needed.

The mandrel bending process ensures that the tube maintains its shape and diameter throughout the bend, unlike crush bends which can deform the tubing and restrict exhaust flow. This is crucial for performance applications where smooth airflow is important. The SS321 material is known for its strength and durability in high-heat environments, making it a solid option for building custom exhaust components.