Latham Steel, based in the industrial heart of Hamilton, New Zealand, proudly stands as a leading source for high-performance steel. We specialize in supplying ASTM A242 Type 1 Corten steel in both sheet and plate form, directly supporting the nation’s architectural and engineering projects. Our team understands the unique demands of the local environment and is committed to providing not just a product, but a reliable, high-quality material solution that combines enduring strength with the distinctive, protective weathered finish that Corten is celebrated for.
The specific composition of ASTM A242 Type 1 Corten steel includes added elements like copper, chromium, and nickel, which work together to create its famous protective patina. This alloy mix enhances its resistance to atmospheric corrosion significantly compared to ordinary carbon steel. Mechanically, it offers a high minimum yield strength, ensuring structural integrity under heavy loads. The steel develops a stable rust-like surface that actually acts as a barrier, protecting the core material and eliminating the need for paint in many applications, making it both practical and cost-effective over time.
Grade : ASTM A242 Type 1 Corten Steel Plates
Standard : ASTM A242 / ASME SA242
Width : 1500mm to 4050mm,
Length : 3000mm to 15000mm
Thickness : 6MM to 200
Type : Weathering Steel / Weather Resistant / Corten Steel / High-Strength Low-alloy Structural Steel
Process : Hot-Rolled (HR)
| Grade ASTM A242 TYPE 1 | C | Mn | Cr | Si | CEV | S | Cu | P |
| Max 0.12 | Max 1 | 0.3-1.25 | Max 0.75 | Max 0.52 | Max 0.03 | 0.25-0.55 | 0.06 – 0.15 |
| Grade | Min. Yield Strength Mpa | Tensile Strength MPa | Impact | ||||||||
| A242 Type1 | Nominal Thickness (mm) | Nominal Thickness (mm) | degree | J | |||||||
| Thick mm | ≤16 | >16 ≤40 | >40 ≤63 | >63 ≤80 | >80 ≤100 | >100 ≤150 | ≤3 | >3 ≤100 | >100 ≤150 | -20 | 27 |
| A242 Type1 | 355 | 345 | …. | …. | …. | …. | 510-680 | 470-630 | …. | ||
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
The uses for this remarkable steel are incredibly diverse. You’ll see it defining modern architecture in striking building facades and sculptural elements, where its ever-changing aesthetic is a key design feature. It’s also essential in constructing robust outdoor structures like bridges and heavy-duty containers that face the elements daily. Beyond the urban landscape, it finds purpose in agricultural vehicles and mining equipment, where its durability is paramount. Essentially, it’s the ideal choice for any project that requires long-lasting strength and a low-maintenance finish with a unique, character-rich appearance.
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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