Latham Steel, rooted in the industrial heart of Hamilton, New Zealand, has built its reputation on a foundation of strength and reliability. As a trusted manufacturer and supplier, their focus on High Strength Steel Sheet and Plate caters to industries where performance is paramount. They understand that the integrity of a finished project begins with the quality of its raw materials, providing solutions that empower engineers and fabricators to push the boundaries of design while ensuring durability and safety in their most demanding applications.
This specific steel is meticulously engineered with a carefully balanced chemical composition, resulting in outstanding mechanical properties. It offers a significantly higher yield and tensile strength than conventional grades, which directly translates into an exceptional strength-to-weight ratio. This means structures and components can be lighter without sacrificing any of their load-bearing capacity or structural integrity, a crucial advantage for modern design and fabrication challenges.
| Item | High Strength Steel Plate |
| Material | 450 Yield ,A36 ,A516 ,A572 , A573 ,A588 , A606 ,A709 Grade 50 ,A871 Grade 65 ,AASHTO M270 ,CSA G40.21 ,Hot Rolled Steel Plate,PVQ A283 ,PVQ A285 ,SAILMA Grade 350 HI , SAILMA Grade 450 HI |
| Thickness | 6-300mm |
| Width | 900-4100mm |
| Length | 3000-25000mm |
| Type | Steel Plate |
| S | Cr | P | Al | C | Ni | Si | Mo | Mn |
|---|---|---|---|---|---|---|---|---|
| 0.005 max | 1.50 max | 0.0.20 max | 0.015 max | 0.20 max | 2.0 max | 0.80 max | 0.70 max | 1.70 max |
| Thickness milimeter | Rm MPa | Re MPa | A % |
|---|---|---|---|
| < 50 | 770 – 940 | 690 | 14 |
| > 50 ? 100 | 760 – 930 | 650 | 14 |
| > 100 | 710 – 900 | 630 | 14 |
| grade | DENSITY | (MPA)YIELD STRENGTH |
|---|---|---|
| water quenched 480 °C (900 °F), temper 855 °C (1570 °F) AISI 4130 | 7.85 G/CM³ | 951 |
| clear cast sheet (PMMA), Acrylic | 1.16 G/CM³ | 72 |
| Steel, high strength alloy ASTM A514 | 7.8 G/CM³ | 690 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
|
Grade
|
Nominal Thickness t (mm)
|
||
|
3 ≤ t ≤ 50
|
50 < t ≤ 100
|
100 < t ≤ 150
|
|
|
Minimum yield strength ReH, MPa
|
|||
|
S460Q
|
460
|
440
|
400
|
|
S500Q
|
500
|
480
|
440
|
|
S550Q
|
550
|
530
|
490
|
|
S620Q
|
620
|
580
|
560
|
|
S690Q
|
690
|
650
|
630
|
|
S890Q
|
890
|
830
|
Â
|
|
S960Q
|
960
|
Â
|
Â
|
|
Â
|
Tensile strength Rm, MPa
|
||
|
S460Q
|
550-720
|
500-670
|
|
|
S500Q
|
590-770
|
540-720
|
|
|
S550Q
|
640-820
|
590-770
|
|
|
S620Q
|
700-890
|
650-830
|
|
|
S690Q
|
770-940
|
760-930
|
710-900
|
|
S890Q
|
940-1100
|
880-1100
|
Â
|
|
S960Q
|
980-1150
|
Â
|
Â
|
|
Quality
|
Test Temperature °C
|
|||
|
-20
|
-40
|
-50
|
-60
|
|
|
M
|
40J
|
Â
|
Â
|
Â
|
|
ML
|
Â
|
Â
|
27J
|
Â
|
|
Q
|
30J
|
Â
|
Â
|
Â
|
|
QL
|
Â
|
30J
|
Â
|
Â
|
|
QL1
|
Â
|
Â
|
Â
|
30J
|
The uses for this material are extensive, forming the backbone of critical infrastructure and advanced machinery. It is essential in the construction of heavy-duty mining equipment, logging trucks, and agricultural machinery that must withstand immense stress. Furthermore, its lightweight strength makes it ideal for structural components in commercial buildings, bridges, and specialized transportation, contributing to safer and more efficient designs. For any project where reducing weight directly enhances performance or payload capacity, this high-strength steel is the material of choice.
Latham Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Hamilton, New Zealand.
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