What is SS321 stainless steel?

SS321 is a type of stainless steel that includes titanium. This addition helps prevent carbide precipitation at high temperatures, making it more resistant to corrosion in harsh exhaust environments and capable of handling high heat.

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

A 1D radius means the center of the bend is one tube diameter away from the outside of the tube. For a 3.5-inch tube, this creates a relatively tight bend that's still smooth enough to allow good exhaust flow.

What is the difference between mandrel bent and crush bent tubing?

Mandrel bending uses a support tool inside the tube to maintain its shape and diameter through the bend, which is crucial for optimal exhaust flow. Crush bending simply bends the tube, often resulting in a collapsed or restricted internal diameter.

Specifications

Brand: Stainless Bros
Part #: 701-08926-3100
UPC: 701-08926-3100

Stainless Bros 3.5in SS321 45 Deg Mandrel Bend Elbow - 1D Radius 16GA/.065in Wall (No Leg)

Name: Stainless Bros 3.5in SS321 45 Deg Mandrel Bend Elbow - 1D Radius 16GA/.065in Wall (No Leg)
Brand: Stainless Bros
SKU: stainless-bros-stainless-bros-3-5in-ss321-45-deg-mandrel-bend-elbow-1d-radius-16-t14-548480
Price: 56.31 USD
Availability: BackOrder

$56.31

On Backorder

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

Key Features

Fits custom exhaust fabrication projects.
3.5 inch outer diameter tubing.
45 degree bend with a 1D radius.
Made from SS321 stainless steel for corrosion and heat resistance.
16 gauge wall thickness (.065 inch).
Mandrel bent to maintain internal diameter and improve flow.

Secure CheckoutFast Shipping631-982-0042

About this part

Product Details

This is a 3.5-inch diameter, 45-degree mandrel bend elbow from Stainless Bros, made from SS321 stainless steel with a 1D radius and a 16-gauge wall thickness. It's designed for custom exhaust fabrication projects where precise bends are needed to route tubing around obstacles or connect different sections of pipe. The SS321 material is known for its good corrosion resistance and ability to withstand high temperatures, making it a solid choice for exhaust systems.

The mandrel bending process ensures that the tube maintains its full diameter through the bend, which helps improve exhaust flow compared to crush bends. This elbow has a 1D radius, meaning the center of the bend is one diameter away from the tube's outer wall, providing a relatively tight but smooth curve. The 16-gauge wall thickness offers a good balance of strength and weight for fabrication work. This part is sold as a single elbow with no legs, intended for welding into a custom exhaust setup.