What does NB mean on pipe?

Nominal Bore — the rough inside size in millimetres. The outside diameter is bigger; 25NB pipe, for example, is 33.7mm OD. NB is the original inch sizing translated to metric.

Is your galvanised pipe rated for water?

Medium-grade galv pipe to AS 1074 is suitable for general water and air lines. For potable water or pressure work, talk to your licensed plumber about fittings and ratings.

Do you stock structural CHS as well as pipe?

Yes — circular hollow section (CHS to AS/NZS 1163) is also available. Different standard, different grade. Tell us if it's for engineered structural work and we'll quote the right product.

Do you deliver steel pipe to the Gold Coast, Tweed Heads and Northern NSW?

Yes — daily delivery runs across the Gold Coast, Tweed Heads and Northern NSW. Pipe loads up neatly on the crane truck or the standard tray.

What's the longest pipe you can supply?

Standard length is 6.5m off the rack. Longer special lengths to 12m available to order — talk to us about timing.

Can you fabricate from pipe?

Yes — cutting, welding caps, drilling and basic bending are all standard work through the fab shop.

How much does galvanised pipe cost?

Price depends on bore size, wall, length and finish (galv or black). Send the spec and we'll quote it same day.

PRODUCTS / Steel Pipe

Steel Pipe

Steel pipe is medium-grade round tube to AS 1074, supplied galvanised or black for handrails, posts, water and air lines across the Gold Coast.

Sizes

15NB to 150NB

Finishes

Galvanised · Black

Grade

Medium — AS 1074

Lengths

6.5m standard

Round pipe earns its keep on jobs where tube has to look honest — handrails, balustrades, pool fence posts, rural gate posts, awning posts. Galvanised pipe also fronts up to plumbing, water and air-line work where black would rust through.

We stock the medium-weight series in galv and black, from 15NB (about a half-inch) up to 150NB (6 inch). Light wall for handrail work, medium wall for structural posts, all to AS 1074 / AS 1163. Standard length is 6.5m across the range.

Need it cut, capped or bent? Talk to us — we run that work through the fab shop.

Common applications

What it's used for.

Handrails and balustrades
Pool fence posts
Rural gate posts and stays
Awning and shade posts
Plumbing and water lines (galv)
Air and gas lines (galv, with rated fittings)
Bollards and protection rails

Sizes we carry

Standard Pipe sizes — pulled straight from the rack.

marks the sizes we move most often. Other sizes available on request.

See full size reference → for every standard section we stock.

Stock varies by size. Call us before you drive to confirm what's on the shelf today.

Steel pipe — Light & Medium grade per AS 1074 / AS/NZS 1163. All standard lengths are 6.5m. Stocked items vary — call us for what's on the shelf.

Marshall Steel — Steel Pipe

Steel pipe — Light & Medium grade per AS 1074 / AS/NZS 1163. All standard lengths are 6.5m. Stocked items vary — call us for what's on the shelf. · 9 Stevenson Court, Burleigh Heads QLD · 07 5576 6037

NB	OD (mm)	Wall (mm)	Grade	Mass (kg/m)	Finish	Standard length
15 NB	21.3	2.0	Light	0.95	Galv / Black	6.5 m
15 NB	21.3	2.6	Medium	1.21	Galv / Black	6.5 m
20 NB	26.9	2.3	Light	1.40	Galv / Black	6.5 m
20 NB	26.9	2.6	Medium	1.56	Galv / Black	6.5 m
25 NB	33.7	2.6	Light	2.00	Galv / Black	6.5 m
25 NB	33.7	3.2	Medium	2.41	Galv / Black	6.5 m
32 NB	42.4	2.6	Light	2.55	Galv / Black	6.5 m
32 NB	42.4	3.2	Medium	3.10	Galv / Black	6.5 m
40 NB	48.3	2.9	Light	3.25	Galv / Black	6.5 m
40 NB	48.3	3.2	Medium	3.56	Galv / Black	6.5 m
50 NB	60.3	2.9	Light	4.11	Galv / Black	6.5 m
50 NB	60.3	3.6	Medium	5.03	Galv / Black	6.5 m
65 NB	76.1	3.2	Light	5.76	Galv / Black	6.5 m
65 NB	76.1	3.6	Medium	6.43	Galv / Black	6.5 m
80 NB	88.9	3.2	Light	6.76	Galv / Black	6.5 m
80 NB	88.9	4.0	Medium	8.38	Galv / Black	6.5 m
100 NB	114.3	3.6	Light	9.83	Galv / Black	6.5 m
100 NB	114.3	4.5	Medium	12.2	Galv / Black	6.5 m
125 NB	139.7	4.0	Light	13.4	Galv / Black	6.5 m
125 NB	139.7	4.8	Medium	16.0	Galv / Black	6.5 m
150 NB	165.1	4.5	Light	17.8	Galv / Black	6.5 m
150 NB	165.1	5.0	Medium	19.8	Galv / Black	6.5 m
Extra-light Gal pipe	—	—	Extra-light	—	Galv	Coming soon

Extra-light Gal pipe sizes coming soon — additional sizes will be added shortly. Contact us in the meantime.

Got your size? Get a quote.

Quote my Pipe

Yellow-dot sizes are typical stock at the Burleigh Heads yard. Other sizes available on request — usually same-week.

Finishes

How we finish it.

Galvanised pipe is the default for outdoor and wet work — the dip protects inside and out. Black pipe is cheaper and welds cleaner; use it where you'll coat the job after fabrication.

Hot-dipped galvanised (medium series)
Black mild steel (medium series)

Pipe to AS 1074 / AS 1163, medium grade typical. Hot-dip galv to AS/NZS 4680.

Cut to length & fabricated on site.

We cut Pipe to your sizes on the bandsaw and fabricate from this range in the workshop — drilling, coping, welding, hole-punching. See the fabrication service →

FAQ

Common questions on Pipe.

What does NB mean on pipe?: Nominal Bore — the rough inside size in millimetres. The outside diameter is bigger; 25NB pipe, for example, is 33.7mm OD. NB is the original inch sizing translated to metric.
Is your galvanised pipe rated for water?: Medium-grade galv pipe to AS 1074 is suitable for general water and air lines. For potable water or pressure work, talk to your licensed plumber about fittings and ratings.
Do you stock structural CHS as well as pipe?: Yes — circular hollow section (CHS to AS/NZS 1163) is also available. Different standard, different grade. Tell us if it's for engineered structural work and we'll quote the right product.
Do you deliver steel pipe to the Gold Coast, Tweed Heads and Northern NSW?: Yes — daily delivery runs across the Gold Coast, Tweed Heads and Northern NSW. Pipe loads up neatly on the crane truck or the standard tray.
What's the longest pipe you can supply?: Standard length is 6.5m off the rack. Longer special lengths to 12m available to order — talk to us about timing.
Can you fabricate from pipe?: Yes — cutting, welding caps, drilling and basic bending are all standard work through the fab shop.
How much does galvanised pipe cost?: Price depends on bore size, wall, length and finish (galv or black). Send the spec and we'll quote it same day.