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MS Round Pipes / Tubes

Grades, sizes and the unit each material is priced in.

Overview

What this covers

Round sections are identified by outside diameter and wall thickness. Where a pipe is being specified by nominal bore rather than outside diameter, say so — the two numbering conventions do not match, and it is the most common source of a wrong order.

Applications

Typical uses

Handrails and balustrades
Structural columns and props
Frames and supports
Fencing and posts
General fabrication

Specification

What identifies the material

These are the details a quotation works from. The more you can give, the fewer questions come back.

Outside diameter in mm, or nominal bore if that is how it is specified
Wall thickness in mm
Length per piece
Quantity in pieces or weight
Finish, where it matters
Whether cut lengths are required

Add it

Add to your material list

Add a line to your material list

Size and quantity are what a quotation needs. Everything else helps.

MaterialGrade / classSize / sectionThicknessLength per pieceQuantityUnitCut lengths requiredDeliveryUnloading

Notes

Review material list

Grade, size and availability are confirmed at quotation. Cutting capability, tolerance, minimum length and charges are confirmed during quotation.

Calculate

Work out the weight or quantity

The calculator prints the formula and the density it used, so the figure can be checked.

Theoretical calculated weight only. Calculator results are preliminary estimates for requirement and quotation preparation. They are derived from published geometry and a stated density, and actual weight varies within manufacturing tolerance. Final material specification and structural quantities must follow drawings, BOQ and engineer or project requirements.

Open the calculator

Price

What affects the price

Material and grade
Section size and wall thickness
Quantity
Current market rate
Cut lengths, where required and available
Transport
Unloading arrangements

We do not publish rates. Current rates are confirmed at quotation because material and transport pricing can change.

Availability

What affects availability

Size and section
Grade or class specified
Quantity required
Whether the size is held or ordered in
Supplier location
Transport availability

Availability varies by grade, size, thickness, length, brand, quantity and specification. Current status is confirmed at quotation. Nothing on this website states stock or a delivery date.

Quotation

What to send with an enquiry

Material and grade or class
Section, diameter, width, height and wall thickness
Length per piece, and whether cut lengths are required
Quantity in the unit you buy
Delivery location and site access
Who unloads at the far end
The date it is needed on site

Avoid

Common mistakes

Mixing nominal bore with outside diameter without saying which is which
Omitting wall thickness
Assuming pipe and tube sizing conventions are interchangeable

Questions

Frequently asked

What is the difference between nominal bore and outside diameter?

They are different numbering conventions, and the figures do not match. Nominal bore approximates the internal size and follows a standard series; outside diameter is the actual measured outside.

State which one your figure is, or measure the outside diameter and say so.

How is round pipe weight calculated?

π × (OD − t) × t × length × 7850 kg/m³. The calculator prints the formula with the result.