Raw Materials for Rebar Connecting Sleeves

The raw material for rebar connecting sleeves is 45# carbon structural steel, available in both bar and tube forms. Both types of raw materials meet the tensile strength requirements in tensile tests, provided that the materials used are from正規(guī)manufacturers. Some manufacturers emphasize that their products are made from bar stock during sales, but in reality, bar stock from small manufacturers contains more impurities and still fails to meet tensile strength standards. Compared to tubes, bar stock for sizes below 25 has lower costs and should be cheaper. For sizes above 25, tubes have lower costs, with the price difference being minimal. However, tubes do not require a perforation process during production, which increases manufacturer output. This is why many large manufacturers prefer using tubes.