Maureen and James Ryan in happier times and the steel works at Port Talbot under construction in the 1950's Large numbers of steelworkers are coming forward to make asbestos-related health claims connected with their work at a number of steelworks operated during the 1950s, ’60s and ’70s, lawyers have said. A number of workers and their relatives from the former – now demolished – British Steel-owned plant in Port Talbot and the Llanwern steelworks are now coming forward after being diagnosed with asbestos-related diseases.