The Welsh Government is supporting the project with £65,000 to ensure the investment goes ahead at the Neath facility.
The investment is essential for the Neath plant - which was formed in 1984 - to meet the growing demand for its products.
The new equipment will not only increase production but will automate the recording of production data during the manufacturing process.
Economy Secretary Ken Skates said:
“This expansion is important for the sustainable future of the Neath facility and supports both the steel industry in Wales – a priority for the Welsh Government – and the construction industry, one of our key economic sectors.
“Welsh Government funding support was essential to secure this project for Neath that will create and safeguard jobs while the increased production will also open up new supply chain opportunities in Wales and provide further opportunity to manufacture and supply steel products from Wales.”
Andy Lodge, Managing Director of Express:
"This is a great example of industry and government being aligned and working for the benefit of all stakeholders. This investment will help to give a more stable platform for our Neath business and enhances the long-term sustainability of that business. The spirit of partnership has been excellent to deliver this result."