Much like G250 steel, this mild steel is easily weldable and prone to rusting if left unpainted or untreated, yet it’s incredibly durable, offers good form ability, and provides enough give in its composition to avoid breaking or cracking in extreme conditions. G350 steel contains less than 0.2 per cent carbon (as do all ‘mild steels’), comes in thicknesses ranging from 5-300mm, and is most commonly used for the likes of general metal fabrication, high rise buildings, bridges, and storage tanks, among other applications.

At Australian Steel, we offer G350 steel that’s compliant with Australian Standard 3678, which regulates the material and welding standards of structural steel, hot-rolled plates, floor plates and slabs. If you’re looking for G350 steel or an AS36798 grade 350 equivalent for your next project, you’ll find it at Australian Steel.

Buy from Australia’s Premier G350 Steel Supplier

For over 35 years, Australian Steel has been providing customers in the construction, industrial and manufacturing sectors with quality G350 steel or an AS3679 grade 350 equivalent for a wide range of uses. With over 3,000 tonnes of steel in stock, we’re sure to have the quantity you require for your project, no matter how large or small its scale may be.

We’re also open to the general public, offering a wealth of services from oxy cutting through to ink jet marking and much more. Australian Steel services not just Victoria but right across Australia, so when you’re looking for G350 steel or itsAS3679 grade 350 equivalent, call us on (03) 9580 2200 or email
steel@australiansteel.com.au.

Tensile Properties (Transverse)

Thickness (mm)

 t ≤ 8 8 < t ≤ 12 12 < t ≤ 50 20 < t ≤ 25 25 < t ≤ 80 80 < t ≤ 100

Yield Strength (Mpa)

Guaranteed Min

360 360 350 340 340 330

Typical

370 – 540 360 – 470 350 – 430 350 – 440 340 – 470 330 – 440

Tensile Strength (Mpa)

Guaranteed Min

450 450 450 450 450 450

Typical

490 – 580 480 – 550 470 – 540 470 – 550 460 – 550 510 – 570

Elong. On 5.65√S0 (%)

Guaranteed Min

20 20 20 20 20 20

Typical

20 – 38 22 – 39 23 – 37 23 – 36 23 – 36 28 – 36

HARDNESS

TYPICAL

140 – 180BHN

AVAILABLE THICKNESS

3mm – 300mm

Values are to be used as a guide only. Actual values of specific plates can be obtained by contacting us on 0395802200

Tensile Properties (Transverse)

Thickness (mm)

8 < t ≤ 12 12 < t ≤ 50 20 < t ≤ 50 50 < t ≤ 80 80 < t ≤ 115

Yield Strength (Mpa)

Guaranteed Min

310 300 280 270 260

Typical

330 – 450 330 – 460 290 – 410 320 – 430 320 – 410

Tensile Strength (Mpa)

Guaranteed Min

430 430 430 430 430

Typical

450 – 540 460 – 530 440 – 520 510 – 560 510 – 560

Elong. On 5.65√S0 (%)

Guaranteed Min

21 21 21 21 21

Typical

24 – 39 24 – 40 24 – 34 25 – 34 25 – 34

HARDNESS

TYPICAL

130 – 170BHN

AVAILABLE THICKNESS

3mm – 300mm

Values are to be used as a guide only. Actual values of specific plates can be obtained by contacting us on 0395802200