What's the difference between short and long radius?

Long radius (1.5 times the nominal diameter) is the default reference; short radius (1 times the diameter) is used in constrained spaces, at the cost of a slightly higher pressure drop.

Is the 180° elbow common?

Less than the 90°, but available on request — often used for bundle return or compact configurations.

Are my elbows affected by anti-dumping?

Only if they are butt-welded and originate from China or Taiwan — see the anti-dumping page in the steel import regulation cluster for the NC/TARIC code detail.

Can I order a single elbow without the rest of the line?

Yes, no minimum quantity — from a single piece, with the caveat that transport weighs proportionally more on a small order.

STAINLESS FITTINGS · ELBOWS

Stainless steel elbow

A stainless elbow changes the direction of a piping line, at 45°, 90° or 180°, short or long radius, butt-welded per ASME B16.9 or EN 10253-4. Same dimensional ranges as the matching tube.

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What is a stainless steel elbow?

A stainless elbow is a curved fitting that changes a piping line's direction with no diameter reduction. Long radius (1.5D) is the default reference on most process projects; short radius (1D) is used when space is constrained.

How to choose it?

Long radius by default, unless an explicit space constraint justifies a short radius — its pressure drop is slightly higher. The angle (45°/90°/180°) is chosen based on the line routing, not a grade or standard rule.

Available grades

Elbows follow the grade of the tube line they connect — standard austenitics from partner stock, duplex on request for demanding networks.

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Applicable standards

ASME B16.9
EN 10253-4

Partner stock or mill?

Elbows follow the same partner stock / mill logic as the tube line they equip.

From partner stock: 48 hours for urgent needs, 5 working days as standard.

We go through the mill when volume and lead time make sense — typically container-load quantities, sometimes less, with a lead time of a few months including transport. That arbitration is ours to make: when buying at source works out cheaper for you, we say so.

Frequently asked questions

What's the difference between short and long radius?: Long radius (1.5 times the nominal diameter) is the default reference; short radius (1 times the diameter) is used in constrained spaces, at the cost of a slightly higher pressure drop.
Is the 180° elbow common?: Less than the 90°, but available on request — often used for bundle return or compact configurations.
Are my elbows affected by anti-dumping?: Only if they are butt-welded and originate from China or Taiwan — see the anti-dumping page in the steel import regulation cluster for the NC/TARIC code detail.
Can I order a single elbow without the rest of the line?: Yes, no minimum quantity — from a single piece, with the caveat that transport weighs proportionally more on a small order.