{"id":10324,"date":"2026-09-24T15:47:06","date_gmt":"2026-09-24T15:47:06","guid":{"rendered":"https:\/\/ifanultra.com\/pprct-pipe-order-control-for-importers.html"},"modified":"2026-09-24T15:47:06","modified_gmt":"2026-09-24T15:47:06","slug":"pprct-pipe-order-control-for-importers","status":"publish","type":"post","link":"https:\/\/ifanultra.com\/es\/pprct-pipe-order-control-for-importers.html","title":{"rendered":"PP-RCT Pipe vs PP-R: Order Controls That Catch a Swap"},"content":{"rendered":"

A container of DN63 pipe lands for a hotel’s 70 \u00b0C hot-water risers. The print line says PP-RCT. Every length measures to size and every joint fuses, and none of that tells you which resin you bought, because PP-R and PP-RCT share outside diameters and fuse to each other<\/a>.<\/p>\n

Here is the short answer. PP-RCT is polypropylene random copolymer with modified crystallinity and temperature resistance. ISO 15874-2:2013<\/a> asks it to carry more hoop stress than PP-R in long hot service, so one pressure class can run on a thinner wall. It is not stronger everywhere. At 20 \u00b0C for 1 hour the standard asks PP-RCT to survive 15.0 MPa and PP-R 16.0 MPa. That inversion is why an importer cannot confirm the grade with a quick test. The order needs three controls: a print line that names the grade, paperwork tied to the resin batch, and a 95 \u00b0C test that runs for days.<\/p>\n

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Key Takeaways<\/p>\n