The 32-year-old joins from Worcester Warriors who have been suspended and relegated from the Gallagher Premiership after entering administration. Former Ospreys star Beck has won seven caps for Wales, and is one of the most gifted centres around.
Merthyr chairman Justin Griffiths says Beck can leave if offered “a more suitable option” in the professional game.
“We are delighted to announce that we have been able to offer employment to ex-Warriors, Ospreys and Wales centre Ashley Beck, Ashley joining the Ironmen until the end of the current playing season,” said Griffiths.
“We are conscious that offers from fully professional rugby clubs might materialise in the coming days/weeks. Should a more suitable option surface, we have committed to release Ashley at his request.
“We strongly believe our offer of employment has many benefits, first and foremost in offering Ashley and his family the stability of employment. Beyond this, we believe Ashley’s undoubted skillset and experience will offer plenty, both on and off the field.
“In particular we have a young talented backline, as well as a thriving youth, junior and minis section, who will benefit hugely from Ashley’s experience, presence and tutelage.
“We are also confident that Ashley’s profile will be of significant value to our club and to the Indigo Premiership brand. We hope you will join with us in welcoming Ashley to the Wern, a positive outcome in extremely difficult circumstances.”