DTI pushes probe on the use of induction furnace in steel making

Posted on 09 October 2018

Source: Manila Standard

The Trade Department said it intensified its investigation on the use induction furnace by steel manufacturers amid reports of proliferation of substandard products that pose serious safety hazards to homebuilders and consumers.


Trade Undersecretary Ruth Castelo said in a radio interview there would be no let-up in the investigation of steel companies using induction furnace, especially after the Association of Southeast Asian Nations advised its member countries to ban the use of induction furnace for steelmaking.


“We confiscate substandard materials. We test them on the spot, weigh them and measure their size. We also check on their labels…and issue notice of violation,” said Castelo who also heads the Trade Department’s Consumer Protection Group.


“We have two procedures in our investigation. It could be direct from small retailer and then go up to its supplier or from the supplier to where they distribute…so we’re working on it as a whole approach,” she said, adding that she has even visited an induction furnace plant.


Steel manufacturers using induction furnace formed the group Philippine Induction Smelting Industry Association which counts among its members Real Steel Corp., Wan Chiong Steel Corp., and Melters Steel Corp. that are all based in San Simon, Pampanga; Metro Dragon Steel Corp. in Caloocan City; and Davao Mighty Steel Corp. in Davao City. 


The Asean Iron and Steel Council earlier issued a warning on member nations about the use of induction furnace which it called “obsolete and outdated machinery” as these have already been banned in China.  It also raised concern that Asean would become a dumping ground of these equipment.

AISC said that the adverse impact from the use of induction furnace could arise from “production of substandard quality steel products, which could pose safety hazard as construction materials.”



Castelo said the department would soon wrap-up its investigation on the use of induction furnace even as she cautioned consumers who are buying construction materials to be vigilant and at least look for the labels on the steel products that they purchase.


“Our consumers may not know if the construction materials that they’re buying passed our standards but they should at least be aware of the labeling so that they know who are the manufacturers of these products,” she said.


In its paper, the AISC explained that unlike steelmaking using the electric arc furnace process, induction furnace lacks refining capability to remove harmful elements in liquid steel.


“It has been reported that 90 percent of the rebar produced in China with the induction furnace process were substandard with poor mechanical property in elongation and strength which could easily fracture during application,” the group said.


Local group Philippine Iron and Steel Institute also called for the ban on the use of induction furnace for steelmaking due to the dangers it poses to consumers and the local Philippine industry as well. 

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