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Flat Bar – Merchant Bar

InfraBuild Steel Centre supplies the highest-quality Australian-made merchant bar steel products to assist your construction, engineering, or fabrication projects. We pride ourselves on supplying high quality merchant bar to all our customers: tradesmen, individuals and businesses across Australia.

Steel Flat Bar – Merchant Bar

Due to its versatility and functionality, steel flat bars are widely used in construction and fabrication applications. Steel flat bars are also one of the most popular products we supply and distribute at InfraBuild Steel Centre.

InfraBuild Steel Centre supplies steel flat bars in a wide range of sizes to meet your projects requirements. Our steel flat bars are Manufactured in Australia and exceed the minimum requirements of AS/NZS 3679.1 – 300.

Typical Uses

Merchant bar lends itself to a wide array of applications in many different industries, including:

Engineering construction
Residential construction
Non-residential construction
Mining infrastructure
Transport and storage
Manufacturing

If your business needs help selecting the right steel products ideally suited to your project, please contact our sales team or your nearest local branch, who will be happy to provide assistance on product selection for your application.

Features

InfraBuild Steel Centre is Australia’s premier supplier of metals and building products. As part of InfraBuild’s integrated steel manufacturing network, we have control over every stage of the steel manufacturing process. This allows us to provide a wide range of product features and benefits to our customers, including:

A wide variety and availability of product sizes
Our products exceed the minimum requirements of AS/NZS 3679.1
No special preheating for welding is required
Additional grades are available on request

The features of our steel flat bars make them ideal for use in all areas of steel construction, infrastructure, fabrication and personal building use.

Relevant Standards

It is important to the team at InfraBuild Steel Centre that our steel flat bar products adhere to superior industry standards. All of our merchant bar steel is manufactured to Australian standards, and is compliant with:

AS/NZS 3679.1: Hot-rolled bars and sections

To find out more about the steel flat bar stocked at your local InfraBuild Steel Centre please contact your nearest branch.

Request a quote

Specifications

Size (mm × mm × mm)	Mass (kg/m)	Metres (per tonne)
20 x 3	0.48	2123
20 x 5	0.81	1274
20 x 6	0.96	1062
20 x 10	1.61	637
25 x 3	0.6	1695
25 x 5	1	1019
25 x 6	1.21	847
25 x 8	1.61	637
25 x 10	2.01	510
25 x 12	2.42	424
32 x 3	0.77	1333
32 x 5	1.29	794
32 x 6	1.55	662
32 x 8	2.06	498
32 x 10	2.57	398
32 x 12	3.09	332
40 x 3	0.96	1064
40 x 5	1.61	637
40 x 6	1.93	532
40 x 8	2.57	398
40 x 10	3.22	318
40 x 12	3.86	265
40 x 16	5.15	199
40 x 20	6.44	159
50 x 3	1.21	847
50 x 5	2.01	510
50 x 6	2.42	424
50 x 8	3.22	318
50 x 10	4.03	254
50 x 12	4.83	212
50 x 16	6.44	159
50 x 20	8.05	127
50 x 25	10.1	102
65 x 3	1.57	654
65 x 5	2.61	392
65 x 6	3.14	327
65 x 8	4.18	245
65 x 10	5.23	196
65 x 12	6.27	163
65 x 16	8.36	123
65 x 20	10.5	98
65 x 25	13.1	78
75 x 5	3.01	340
75 x 6	3.62	283
75 x 8	4.83	212
75 x 10	6.04	170
75 x 12	7.25	141
75 x 16	9.66	106
75 x 20	12.1	85
75 x 25	15.1	68
90 x 5	3.62	283
90 x 6	4.35	236
90 x 8	5.79	177
90 x 10	7.25	141
90 x 12	8.69	118
100 x 5	4.03	254
100 x 6	4.83	212
100 x 8	6.44	159
100 x 10	8.05	127
100 x 12	9.66	106
100 x 16	12.9	79
100 x 20	16.1	64
100 x 25	20.1	51
100 x 50	40.3	25
110 x 6	5.31	193
110 x 8	7.08	145
110 x 10	8.86	116
110 x 12	10.7	96
130 x 5	5.23	193
130 x 6	6.27	163
130 x 8	8.36	123
130 x 10	10.5	98
130 x 12	12.5	82
130 x 16	16.7	61
130 x 20	20.9	49
130 x 25	26.1	39
150 x 5	6.04	170
150 x 6	7.25	141
150 x 8	9.66	106
150 x 10	12.1	85
150 x 12	14.5	71
150 x 16	19.3	53
150 x 20	24.2	42
150 x 25	30.1	34
150 x 50	60.4	17
180 x 5	7.25	141
180 x 6	8.69	118
180 x 10	14.5	71
180 x 12	17.4	59
180 x 16	23.2	44
180 x 20	29	35
180 x 25	36.2	28
200 x 6	9.66	16
200 x 8	12.9	79
200 x 10	16.1	64
200 x 12	19.3	53
200 x 16	25.7	40
200 x 20	32.2	32
200 x 25	40.3	25
250 x 6	12.1	85
250 x 8	16.1	64
250 x 10	20.1	51
250 x 12	24.2	42
250 x 16	32.2	32
250 x 20	40.3	25
250 x 25	50.3	20
300 x 6	14.5	71
300 x 8	19.3	53
300 x 10	24.2	42
300 x 12	29.0	35
300 x 16	38.6	27
300 x 20	48.3	21
300 x 25	60.4	17

Processing

Delivery

How we're making an impact

Circular steel manufacturing

We recycle scrap steel and transform it into new steel products through a continuous circular process. Keeping materials in use reduces waste and supports resource efficiency.

Renewable energy transition

We're increasing the use of renewable electricity across our operations as part of our decarbonisation pathway. This helps reduce emissions associated with steel production.

Lower embodied carbon solutions

Innovations such as SENSE 600® help customers reduce material use while maintaining structural performance. Less steel can mean lower embodied carbon outcomes.

Local manufacturing

Manufacturing steel in Australia strengthens sovereign capability, reduces supply chain complexity and supports local jobs and communities.

1.4M tonnes

of scrap steel recycled annually

77%

fewer greenhouse gas emissions from electric arc furnace steelmaking compared with traditional blast furnace steelmaking*

Helping customers build smarter

Sustainability and productivity don't need to compete. Through higher-strength steel, engineering expertise and advanced manufacturing, we're helping customers reduce material use, improve construction efficiency and lower embodied carbon. It's a practical approach that delivers better outcomes for projects, communities and the built environment.

Explore SENSE 600®

View case studies

Flat Bar – Merchant Bar

Steel Flat Bar – Merchant Bar

Typical Uses

Features

Relevant Standards

Order your steel from InfraBuild Steel Centre today

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How we're making an impact

Helping customers build smarter