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8" X 6" 90 DEGREE SQUARE DUCT ELBOW

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8" x 6" 90 Degree Square Duct Elbow — $76.52

Custom fabricated 8" x 6" square-throat 90 degree elbow in 26-gauge galvanized steel, slip-and-drive both ends. Mitred and riveted, made to order.

8" x 6" 90 Degree Square Duct Elbow: sizing numbers

Worked out from this size's dimensions, so you can check it against your duct design before you order.

Free area0.33 sq ft (48 sq in)
Perimeter28"
Equivalent round duct (equal friction)7.6" diameter
Equal-area round duct7.8" diameter
Aspect ratio1.3 : 1

Airflow by velocity

Air velocityEach opening (0.33 sq ft)
600 fpm200 CFM
700 fpm235 CFM
900 fpm300 CFM
1,200 fpm400 CFM

Airflow is free area times air velocity. Pick the row that matches the velocity your design uses; these figures are capacity at that velocity, not a pressure-loss calculation.

Questions about this size

How many CFM does an 8" x 6" 90 degree elbow carry?

About 235 CFM at 700 fpm and 300 CFM at 900 fpm. Each 8" x 6" opening has 0.33 sq ft of free area, and airflow is free area times air velocity, so multiply 0.33 by the velocity your design calls for.

What round duct is equivalent to an 8" x 6" elbow?

About 7.6" round. That is the equal-friction equivalent diameter, 1.30 x (a x b)^0.625 / (a + b)^0.25, the round size that carries the same airflow at the same friction loss. The round duct with the same free area (0.33 sq ft) is 7.8".

What gauge is an 8" x 6" 90 degree elbow made in?

26-gauge galvanized steel. PMX picks the gauge from the distance around the largest opening: an 8" x 6" opening is 28" around, and openings that measure 30" or less around are built in 26 gauge. The configurator on this page lets you choose 26, 24, 22 or 20 gauge and re-prices it.

How much does an 8" x 6" 90 degree elbow cost?

$76.52 as configured on this page: 26-gauge galvanized steel, made to order. The price comes from the same quoting engine that prices the cart, and changing any dimension in the configurator re-prices it. The same size is $108.69 in aluminum and $140.87 in stainless steel.

Can I order a duct elbow in a different size?

Yes. This page is one published size; the configurator above is loaded with these dimensions and every one of them can be changed to the size you measured, in galvanized steel, aluminum or stainless steel. Each fitting is cut and formed for the order in Pittsburgh, PA.

How fast does an 8" x 6" 90 degree elbow ship, and can it be returned?

It ships in 1 business day from our Pittsburgh, PA shop, by UPS or by LTL freight for large orders, anywhere in the continental US. Shipping is calculated at checkout from the order's weight and destination. Because it is made to the dimensions you order, it is not returnable.

About this size

This page is the 8" x 6" 90 Degree Square Duct Elbow configuration of our 90 degree square duct elbow. It is cut and formed for this order — nothing here is a stock import part. The configurator above is loaded with these exact dimensions, so you can add it to the cart as-is, or change a dimension and it re-prices instantly.

See every 90 degree square duct elbow size and price.