Situated in the heart of Hamilton’s industrial landscape, Latham Steel has built a trusted reputation as a dedicated manufacturer and supplier of high-performance steel. We take particular pride in our expertise with specialized materials like ASME SA 387 Grade 12 Class 1 & 2 Sheet and Plates. Supplying these critical components to New Zealand’s key sectors, we are committed to providing locally sourced solutions that meet the most stringent international standards for demanding high-temperature and high-pressure service environments.
This chromium-molybdenum alloy steel is carefully formulated for stability and strength under extreme conditions. Its specific composition contributes to excellent resistance to creep and oxidation. The material is supplied in either Class 1 (annealed) or Class 2 (tempered) conditions, allowing engineers to select the optimal balance of tensile strength and notch toughness for their specific design requirements, ensuring both safety and longevity in critical applications.
| Standard | ASTM A387 / ASME SA387 |
|---|---|
| Width | 1000mm-3000mm |
| Thickness | 1.0mm – 200mm |
| Production | Hot-Rolled (HR) / Cold-Rolled (CR) |
| Grade | C | Si | Mn | P | S | Cr | Mo |
| A387 GR.12 CL.1 & 2 | 0.04-0.17 max | 0.13-0.45 max | 0.35-0.73 max | 0.035 max | 0.035 max | 0.74-1.21 max | 0.40-0.65 max |
| Grade | A387 GR.12 CL.1 & 2 | |||
| A387 GR.12 CL.1 & 2 | Thickness mm | Yield Min Mpa | Tensile Mpa | Elongation Min % |
| t≦50 | 230 | 380-550 | 22 | |
| 50<t≦200 | – | – | 18 | |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Jaxon Steel is a trusted manufacturer and supplier of high-quality ASME SA 387 Grade 12 Class 1/2 Sheet and Plates in Hamilton, New Zealand. We specialize in premium steel products, including Alloy Steel, Carbon Steel, Mild Steel and Galvanized Steel, with a strong focus on Carbon Steel Sheet and Plates. Our extensive inventory also includes Pipes, Tubes, Flanges, Forged Fittings and Bars. Committed to fast delivery and exceptional customer service, we use only the finest raw materials to ensure superior strength, durability and performance for critical industrial applications. Contact us today for all your ASME SA 387 Grade 12 Class 1/2 Sheet and Plates needs!
These plates are essential for constructing vital equipment that operates under immense pressure and heat. You will commonly find this grade used in the fabrication of reactors, pressure vessels, and heat exchangers within the petrochemical, power generation, and oil and gas industries. Its reliability makes it a cornerstone material for components where failure is not an option, safely containing processes that are fundamental to modern industrial operations and energy production.
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.
Copyright 2025 Latham Steel. All rights reserved