A further round of steel industry job cuts is expected to be announced by Tata tomorrow.
The announcement comes as another blow to UK steel following the recent closure of the steel plant at Redcar which resulted in 1,700 job losses.
Tata would not confirm the reports, saying it does not comment on "rumour and speculation", but most of the cuts are expected to be made in Scunthorpe. However, steelmaking will effectively end in Scotland if cuts are also confirmed in Dalzell and Clydebridge.
News of the workforce reductions emerged as the Government held a summit in Rotherham last week, attended by unions, business leaders and ministers, to discuss the crisis gripping the industry amid plunging prices and cheap imports.
Roy Rickhuss, general secretary of the Community union, said: "The Government scandalously missed opportunities to intervene and protect the industrial assets in Redcar, which has left a community devastated and taxpayers picking up a bill of hundreds of millions to clean the site.
"This must not be allowed to happen again and what has happened in Redcar should focus everyone's minds.
"For several years, we have been calling for a government-led steel strategy, which recognises the importance of this foundation industry to the wider UK economy. The current steel crisis is partly a result of such a strategy not existing.”
Shadow business secretary Angela Eagle described the latest announcements and job losses as ‘devastating’ for steel workers and their local communities.
"This underlines the seriousness of the situation facing the UK steel industry,” she said. "With the steel industry in crisis, after the summit today, the Government needs to stop sitting on its hands and act to safeguard this important strategic industry.
A Scottish Government spokesman said it had been in constant contact with both Tata Steel and the trades unions since Tata first announced the potential sale of its Long Products Division last year.
"We continue to be in contact to explore all possible options to find a viable future for the company's sites in Scotland.
"In the unfortunate event of any redundancies, our initiative for responding to redundancy situations, Partnership Action for Continuing Employment, stands ready to offer support for affected employees and to work closely with the company and workforce representatives to provide a tailored package of support, should this be required."