90-Degree Elbow

QS Pipe Fitting: Yancheng 90-Degree Elbow

90 degree pipe elbow in a wide size range and carbon, stainless, alloy or duplex steel, made to ANSI, ISO, JIS and DIN standards.

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One-Minute Overview

90 degree elbow for changing flow direction in industrial piping.
Sizes from 1/2 to 56 Inch across carbon, stainless, alloy and duplex steel.
Made to ANSI, ISO, JIS and DIN manufacturing standards.
Sizes, materials and standards are confirmed per inquiry.

The 90 degree elbow is the fitting that turns a line, and almost every piping system needs one somewhere. This range runs from 1/2 to 56 Inch and covers carbon steel, stainless steel, alloy steel and duplex steel, so the material can be matched to the medium, the temperature and the corrosion risk rather than chosen by habit. Manufacturing follows ANSI, ISO, JIS and DIN, which means the elbow can be specified into whichever dimensional system the rest of the plant uses. Typical duty spans oil and gas lines, power station steam and coolant, chemical process piping, HVAC and water or wastewater networks. Sizes, wall thicknesses and material grades are confirmed per inquiry, and a detailed specification sheet is available on request.

Name: 90-Degree Elbow
Size Range: from 1/2 to 56 Inch
Material: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Manufacturing Standards: ANSI, ISO, JIS, DIN
Sizes, wall thicknesses and material grades are confirmed per inquiry, and a detailed specification sheet is available on request.

Choosing a 90 degree elbow starts with the standard, because that decides the outside diameter series. ANSI, ISO, JIS and DIN do not share the same dimensions, so an elbow bought to one system will not sit square on pipe bought to another, even at the same nominal size. Pick the material next: carbon steel for general duty, stainless or duplex where corrosion matters, and alloy steel where temperature or strength asks for it. Then settle the bend radius, since a long-radius elbow eases the turn and a short-radius one saves space, and keep the wall schedule matched to the run pipe. Across the 1/2 to 56 Inch range, confirm the actual outside diameter and the centre-to-end dimension on the spool drawing rather than trusting the nominal label.

On the rack, an elbow is a weld waiting to go right. Align the bores, leave the root gap the procedure calls for, tack in two places and recheck the angle before the root pass, then cap with controlled heat input and let the joint cool evenly. Protect the bevels in handling and store elbows by size and material so nobody grabs a JIS elbow for an ANSI spool in the rush of a turnaround. Before shipping, verify the centre-to-end dimension, the bead profile and the grade stamping, and keep the material certificate with the spool records. Sizes, materials and manufacturing standards are confirmed per inquiry, so ask for the specification sheet with the order.

FAQ

Q1. Can I mix elbows from different standard systems on one line?

Not without a transition piece. ANSI, ISO, JIS and DIN fix their own outside diameter series, so two elbows with the same nominal size can land on different actual diameters. Mixing them gives a misaligned bore and a bad root gap. Choose one system for the spool and stay with it, or plan a properly designed transition.

Q2. Does the material really change that much on a plain water line?

It changes the service life more than the flow. Carbon steel is fine until corrosion or temperature climbs; stainless and duplex hold up where the medium or the weather attacks the wall; alloy steel covers the hot or high-strength corner. State the medium and temperature with the order so the grade earns its cost instead of being a guess.

Q3. Is a 56 Inch elbow as cheerful to install as it sounds?

Cheerful is not the word the riggers use. Large bores mean heavy handling, careful support and a weld that takes a long, patient pass, so the fit-up and the lift plan matter more than the elbow itself. The good news is the geometry does not change with size: align, tack, check the angle, then weld.

Q4. How long will production take?

Standard sizes are typically ready within 30 days, and in-stock items ship immediately. Larger or custom orders get a confirmed date per order, because the schedule depends on quantity, material, the bolt pattern you specify, and how busy production is at the moment you order.

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