Plate Products


Southern Steel QLD stocks a wide range of high-quality Steel Plate products including mild steel plate, coil plate, boiler plate, floor plate, quench and tempered plate, and clad plate. Commonly used to strengthen foundations and uphold mass units of weight like bridges, Steel Plates are also used as connection plates and in pressure vessels, boilers, and structural applications. Southern Steel QLD’s plate products are available in a wide range of sizes, and a variety of grades, and are supplied to the relevant Australian Standards.

Mild Steel Plate product

Mild Steel Plate - 250 Grade


250-grade mild steel plate made from low carbon steel is a medium-strength structural steel plate with 250 megapascals (MPa) yield strength. Mild steel plate – 250 grade can be used for various construction projects, including bridges and high-rise buildings. Southern Steel QLD 250 grade mild steel plate meets the Australian Standard AS/NZS 3678.

Mild Steel Plate - 250 Grade line drawing with details
  • Manufactured in accordance with requirements of Australian Standard AS/NZS 3678 in grade 250

 

DESIGNATION

WEIGHT 

KG/M²

THICKNESS (T)

MM

WIDTH (W)

MM

LENGTH (L)

MM

2400x6000

47.10

6

2400

6000

2400x9000

47.10

6

2400

9000

3000x9000

47.10

6

3000

9000

3000x12000

47.10

6

3000

12000

3200x12000

47.10

6

3200

3200

2400x6000

62.80

8

2400

6000

2400x9000

62.80

8

2400

9000

3000x9000

62.80

8

3000

9000

3000x12000

62.80

8

3000

12000

3200x12000

62.80

8

3200

12000

2400x6000

78.50

10

2400

6000

2400x9000 

78.50

10

2400

9000

3000x9000 

78.50

10

3000

9000

3000x12000 

78.50

10

3000

12000

3200x12000

78.50

10

3200

12000

2400x6000

94.20

12

2400

6000

2400x9000

94.20

12

2400

9000

3000x12000

94.20

12

3000

12000

3200x12000

94.20

12

3200

12000

2400x6000

125.60

16

2400

6000

2400x9000

125.60

16

2400

 9000

3000x12000

125.60

16

3000

12000

3200x12000

125.60

16

3200

12000

2400x6000

157.00

20

2400

6000

3000x9000

157.00

20

3000

9000

  3000x12000

157.00

20

3000

12000

3200x12000

157.00

20

3200

12000

2400x6000

196.25

25

2400

6000

3000x9000

196.25

25

3000

9000

3000x12000

196.25

25

3000

12000

3200x12000

196.25

25

3200

12000

2400x6000

219.80

28

2400

6000

2400x6000

251.20

32

2400

6000

3000x9000

251.20

32

3000

9000

2400x9000 

282.60

36

2400

9000

2400x6000

314.00

40

2400

6000

2400x9000

353.25

45

2400

9000

2400x6000

392.50

50

2400

6000

2400x9000

392.50

50

2400

9000

2400x6000

431.75

55

2400

6000

2400x6000

471.00

60

2400

6000

2400x6000

549.50

70

2400

6000

2400x5200

628.00

80

2400

5200

1800x6000

706.50

90

1800

6000

2400x4000

785.00

100

2400

4000

2400x3700

863.50

110

2400

3700

2400x3400

942.00

120

2400

3400

2400x3100

1020.50

130

2400

3100

2400x2700

1177.50

150

2400

2700

Mild Steel Plate product

Mild Steel Plate - 350 Grade


350-grade mild steel plate made from low carbon steel is a medium-strength structural steel plate with 350 megapascals (MPa) yield strength. Mild steel plate – 350 grade can be used for various construction projects, including bridges and high-rise buildings. Southern Steel QLD 350 grade mild steel plate meets the Australian Standard AS/NZS 3678.

Mild Steel Plate - 350 Grade line drawing with details
  • Manufactured in accordance with the requirements of Australian Standard AS/NZS 3678 in grade 350

 

DESIGNATION

WEIGHT
KG/M²

THICKNESS  (T)

MM

WIDTH (W)

MM

LENGTH (L)

MM

2400x6000

39.25

5

2400

6000

2400x9000

39.25

5

2400

9000

3000x9000

39.25

5

3000

9000

2400x9600

47.10

6

2400

9600

3000x12000 

47.10

6

3000

12000

2400x9600 

62.80

8

2400

9600

3000x12000

62.80

8

3000

12000

2400x6000

78.50

10

2400

9600

3100x9600

78.50

10

3100

9600

3000x12000

78.50

10

3000

12000

2400x6000

94.20

12

2400

9600

3100x9600

94.20

12

2400

9600

3000x12000

94.20

12

3000

12000

2400x9600

125.60

16

2400

9600

3100x9600

125.60

16

3100

 9600

3000x12000 

125.60

16

3000

12000

2400x9600

157.00

20

2400

9600

3100x9600

157.00

20

3100

9600

  3000x12000

157.00

20

3000

12000

2400x9600

196.25

25

2400

9600

3000x12000

196.25

25

3000

12000

2400x10000 

219.80

28

 2400

10000

2400x9600

251.20

32

2400

9600

2400x12000

251.20

32

2400

12000

2400x9600

282.60

36

2400

9600

  2400x7600

314.00

40

2400

7600

2400x7600

392.50

50

2400

7600

2400x7600

471.00

60

2400

7600

2400x6000

549.50

70

2400

6000

2400x6000

628.00

80

2400

6000

2400x3150

706.50

90

2400

3150

2400x6300

706.50

90

2400

6300

2100x3150

785.00

100

2100

3150

2100x6500

785.00

100

2100

6500

Coil Plate (Tru-Spec) product

Coil Plate (Tru-Spec)


Tru-Spec® coil plates are available in various structural grades and are manufactured with guaranteed minimum strength levels and multiple weldabilities, formability and ductility levels. They are ideal for light structural members, brake press forming applications, light poles, trailer and automotive components, general fabrication and galvanising applications that can be cut to length. Southern Steel QLD coil plates meet the Australian Standard AS/NZS 1594 – HA250 and HA350.

Coil Plate (Tru-Spec) line drawing with details
  • Manufactured in accordance with the requirements of Australian Standard AS/NZS 1594 – HA250

 

DESIGNATION

WEIGHT
KG/M²

THICKNESS (T)

MM

WIDTH (W)

MM

LENGTH (L)

MM

1200x2400

23.55

3

1200

2400

1200x3000

23.55

3

1200

3000

1200x6000

23.55

3

1200 

6000

1500x3000

23.55

3

1500 

3000

1500x6000

23.55

3

1500

6000

1800x6000

23.55

3

1800

6000

1200x2400

31.40

4

1200 

2400

1200x6000

31.40

4

1200 

6000

1500x3000

31.40

4

1500

3000

1500x6000 

31.40

4

1500

6000

1800x6000

31.40

4

1800

6000

1200x2400

39.25

5

1200

2400

1200x6000

39.25

5

1200

6000

1500x3000

39.25

5

1500

3000

1500x6000

39.25

5

1500

6000

1800x6000

39.25

5

1800

6000

1200x6000

47.10

6

1200 

6000

1500x3000

47.10

6

1500

3000

1500x6000

47.10

6

1500

6000

1800x6000

47.10

6

1800

6000

1200x2400

62.80

8

1200

2400

1500x3000

62.80

8

1500

3000

1200x2400

78.50

10

1200

2400

1500x3000

78.50

10

1500

3000

1200x2400

94.20

12

1200

2400

1500x3000

94.20

12

1500

3000

  1200x2400

125.60

16

1200

2400

1500x3000

157.00

20

1500

3000

1500x3000

196.25

25

1500

3000

Floor plate product

Floor Plate


Floor plates or tread plates have an elevated ‘tread’ pattern on one side. This pattern is usually a diamond or chequered design and provides a textured grip when used in a flooring application. Southern Steel QLD floor plates are ideal for building and construction applications such as stairs, catwalks and walkways. They meet the requirements of Australian Standard AS/NZS 3678.

Floor plate line drawing with details
  • Manufactured in accordance with the requirements of Australian Standard AS/NZS 3678 in grade 250

 

DESIGNATION

WEIGHT
KG/M²

THICKNESS (T)

MM

WIDTH (W)

MM

LENGTH (L)

MM

1200x2400

18.49

2.1

1200

2400

1200x2400

25.55

3

1200

2400

1200x3000

25.55

3

1200 

3000

1200x4200 

25.55

3

1500 

4200

1200x6000

25.55

3

1500

6000

1200x6900

25.55

3

1800

6900

1200x2400

41.25

5

1200 

2400

1200x6000

41.25

5

1200 

6000

1500x3000

41.25

5

1500

3000

1500x6000

41.25

5

1500

6000

1200x2400

49.10

6

1200

2400

1200x6000

49.10

6

1200

6000

1500x6000

49.10

6

1500

6000

1800x6000 

64.80

8

1800

6000

1800x6000

80.50

10

1800

6000

1800x6000

96.20

12

1800

6000

Boiler Plate product

Boiler Plate


Southern Steel QLD boiler plate is a killed, fine-grained, thick carbon manganese steel sheet for boiler and pressure vessels with a guaranteed minimum tensile strength of 460MPa. Boilerplates are well suited to low and moderate temperatures, making them ideal for industrial boilers or other pressure vessels. Southern Steel QLD boilerplates meet the Australian Standard AS/NZS 1548 -PT460NR.

Boiler Plate line drawing with details
  • Manufactured in accordance with the requirements of Australian Standard AS/NZS 1548 -PT460NR

 

DESIGNATION

WEIGHT
KG/M²

THICKNESS (T)

MM

WIDTH (W)

MM

LENGTH (L)

MM

3100x9600

62.80

8

3100

9600

3100x9600

78.50

10

3100

9600

3100x9600  

94.20

12

3100

9600

3100x9600

125.60

16

3100

9600

3100x8600

157.00

20

3100

8600

3100x9600

196.25

25

3100

9600

2400x9600

251.20

32

2400

9600

2400x9600

314.00

40

2400

9600

2400x7600 

392.50

50

2400

7600

2400x6000

471.00

60

2400

6000

2400x6000

549.50

70

2400

6000

2400x5200

628.00

80

2400

5200

2400x5200 

785.00

100

2400

5200

Quench & Tempered (Q&T) product

Quench & Tempered (Q&T) - 80 Grade


Quenched & tempered plate is a steel plate heated to extreme temperatures and immediately cooled in water, nitrogen or forced air, making the steel stronger and harder than carbon-based steel. Quenched & tempered – 80 grade steel plate is a high strength, low alloy structural steel with enhanced stability and less thickness.

Quench & Tempered (Q&T) line drawing with details
  • Manufactured in accordance with the requirements of Australian Standard AS/NZS 3597 in grade 700

 

DESIGNATION

WEIGHT
KG/M²

THICKNESS (T)

MM

WIDTH (W)

MM

LENGTH (L)

MM

2500x9600

31.40

4

2500

9600

2500x9600

39.25

5

2500

9600

1525x8000

47.10

6

1525

8000

2485x8000

47.10

6

2485

8000

2485x8000

62.80

8

2485

8000

2485x8000

78.50

10

2485

8000

3100x8000

78.50

10

3100

8000

2485x8000

94.20

12

2485

8000

3100x8000

94.20

12

3100

8000

2485x8000

12.50

16

2485

8000

3100x8000

12.50

16

3100

8000

2485x8000

157.00

20

2485

8000

3100x8000

157.00

20

3100

8000

2485x8000

196.25

25

2485

8000

3100x8000

196.25

25

3100

8000

2485x8000

251.20

32

2485

8000

2485x8000

314.00

40

2485

8000

2485x8000

392.50

50

2485

8000

2485x6000

471.00

60

2485

6000

2000x6000

549.50

70

2000

6000

2000x6000

588.75

75

2000

6000

2000x6000 

628.00

80

2000

6000

2000x6000

706.50

90

2000

6000

2000x6000

785.00

100

2000

6000

2000x4300

942.00

120

2000

4300

2000x4300

1099.00

140

2000

4300

Quench & Tempered (Q&T) product

Quench & Tempered (Q&T) - 400 Grade


Quenched & tempered plate is a steel plate heated to extreme temperatures and immediately cooled in water, nitrogen or forced air, making the steel stronger and harder than carbon-based steel. Quenched and tempered – 400 grade steel plate is a high hardness, abrasion-resistant steel that can sustain abrasions, impact and vibrations. It is easily cut, welded and formed.

Quench & Tempered (Q&T) line drawing with details
  • Manufactured to manufacturer’s own internal specifications

 

DESIGNATION

WEIGHT
KG/M²

THICKNESS (T)

MM

WIDTH (W)

MM

LENGTH (L)

MM

1525x8000

47.10

6

1525

8000

2485x8000

47.10

6

2485

8000

2485x8000

62.80

8

2485

8000

2485x8000

78.50

10

2485

8000

3100x8000

78.50

10

3100

8000

2485x8000

94.20

12

2485

8000

3100x8000

94.20

12

3100

8000

2485x8000

125.60

16

2485

8000

3100x8000

125.60

16

3100

8000

2485x8000

157.00

20

2485

8000

3100x8000

157.00

20

3100

8000

2485x8000

196.25

25

2485

8000

3100x8000

196.25

25

3100

8000

2485x8000

251.20

32

2485

8000

2485x8000

314.00

40

2485

8000

2485x8000

392.50

50

2485

8000

2485x6000

471.00

60

2485

6000

2000x6000

549.50

70

2000

6000

2000x6000

588.75

75

2000

6000

2000x6000 

628.00

80

2000

6000

2000x6000

706.50

90

2000

6000

2000x6000

785.00

100

2000

6000

Quench & Tempered (Q&T) product

Quench & Tempered (Q&T) - 450 Grade


Quenched & tempered plate is a steel plate heated to extreme temperatures and immediately cooled in water, nitrogen or forced air, making the steel stronger and harder than carbon-based steel. Quenched & tempered – 450 grade steel plate is a high hardness, impact and abrasion-resistant steel that can withstand low temperatures, abrasions and force.

Quench & Tempered (Q&T) line drawing with details
  • Manufactured to manufacturer’s own internal specifications

 

DESIGNATION

WEIGHT
KG/M²

THICKNESS (T)

MM

WIDTH (W)

MM

LENGTH (L)

MM

2500x9300

25.12

3.2

2500

9300

2500x8000

31.40

4

2500

8000

2500x9600

31.40

4

2500

9600

2500x8000 

39.25

5

2500

8000

2500x9600

39.25

5

2500

9600

2500x8000

47.10

6

2500

8000

2500x9600

47.10

6

2500

9600

2485x8000

62.80

8

2485

8000

2500x9600

62.80

8

2500

9600

2485x8000

78.50

10

2485

8000

3100x8000

78.50

10

3100

8000

2485x8000

94.20

12

2485

8000

3100x8000

94.20

12

3100

8000

2485x8000

125.60

16

2485

8000

3100x8000

125.60

16

3100

8000

2485x8000

157.00

20

2485

8000

3100x8000

157.00

20

3100

8000

2485x8000

196.25

25

2485

8000

3100x8000

196.25

25

3100

8000

2485x8500

251.20

32

2485

8500

3100x8000

251.20

32

3100

8800

2485x8000

314.00

40

2485

8000

2485x8000

392.50

50

2485

8000

2485x8000

471.00

60

2485

8000

2485x8000

549.50

70

2485

8000

2485x8000

588.75

75

2485

8000

2485x8000

628.00

80

2485

8000

2485x8000

706.50

90

2000

8000

  2485x8000

785.00

100

2000

8000

Quench & Tempered (Q&T) product

Quench & Tempered (Q&T) - 500 Grade


Quenched & tempered plate is a steel plate heated to extreme temperatures and immediately cooled in water, nitrogen or forced air, making the steel stronger and harder than carbon-based steel. Quenched & tempered (Q&T) – 500 grade steel plate is a medium carbon, high hardness and abrasion-resistant steel that is very durable and can sustain extreme abrasion, impact and vibrations.

Quench & Tempered (Q&T) line drawing with details
  • Manufactured to manufacturer’s own internal specifications

 

DESIGNATION

WEIGHT
KG/M²

THICKNESS (T)

MM

WIDTH (W)

MM

LENGTH (L)

MM

2485x8000 

62.80

8

2485

8000

2485x8000

78.50

10

2485

8000

2485x8000

94.20

12

2485

8000

2485x8000

125.60

16

2485

8000

2485x8000

157.00

20

2485

8000

2485x8000

196.25

25

2485

8000

2485x8000

251.20

32

2485

8000

2485x8000

314.00

40

2485

8000

2485x8000

392.50

50

2485

8000

2485x6000

471.00

60

2485

8000

1900x6000

549.50

70

1900

6000

1900x6000

588.75

75

1900

6000

1900x6000

628.00

80

1900

6000

1525x6000

785.00

100

1525

6000

Clad Plate product

Clad Plate


Clad Plate is a multi-layer plate that combines a carbon or low alloy steel plate (backing or backer) with a thin layer of corrosion resistant grade (cladding or clad). The combination of different materials helps make extended service lifetimes on high-wear surfaces a reality. Clad plates are available in various combinations of material, strengths and shapes.

Clad Plate line drawing with details
  • Manufactured to manufacturer’s own internal specifications

 

DESIGNATION

CLAD THICKNESS (T1)

MM

BASE THICKNESS (T2)

MM

WIDTH (W)

MM

LENGTH (L)

MM

1400x2900

4

6

1400

2900

1400x2900

6

6

1400

2900

1400x2900

7

8

1400

2900

1400x2900

9

10

1400

2900

1400x2900

12

12

1400

2900

1400x2900

17

12

1400

2900

For all your steel
needs anywhere in
Queensland


Get in touch for stock, expertise
and service.

Southern Steel Queensland Head Office

97 Coulson Street
Wacol QLD 4076