Founded in Columbus in 1975 to address a shortage of plastic sewer pipe, OSI Plastics now makes pipe and custom plastic profile extrusions for customer-specified designs. The Ohio Steel Industries division has remained in the extrusion business for more than 40 years, with particular experience producing HDPE duct for telecommunications and utility infrastructure. Its Columbus and Delaware facilities manufacture in the United States, and the extrusion plant is ISO 9001:2015 registered.
ISO 9001:2015 Registered
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Build America, Buy America (BABA)
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UL 651A
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ASTM F2160
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ASTM D2239
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NEMA TC-7
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