{"product_id":"hqt80","title":"80 OD x 73 IDx 300L mm Half Open Quartz Tube for DIY Tube Furnace\/induction Heater - HQT80","description":"MTI Corporation provides the high purity quartz tube as the replacement part for high-temperature tube furnaces\/induction heaters in universities, companies, and national labs. It can be used at operating temperatures up to 1200ºC . Purchase Notes: Please make sure the specification of the tube meets your need before making a purchase. Since Nov 10, 2016, we no longer accept the return delivery of any tubes due to the fragile nature of the materials. All tubes are not refundable, not exchangeable, nor covered under the warranty (Consumables) . We apologize for the inconvenience. Please check the package for damages before accepting the delivery. For more information or damaged upon arrival please contact us . SPECIFICATIONS O.D 80mm ±0.5mm (3.15\") I.D 73mm ±0.5mm (2.87\") Tube Length 300mm (11.81\") Max. Operating Temperature 1200 ºC Application Notes Vacuum pressures may only be safely used up to 1000°C The flow rate for gases should be limited to\u0026lt;200 SCCM (or 200ml\/min) for reducing thermal shocks to the tube Quartz tubes are designed for using under vacuum and low pressure \u0026lt; 0.2 bars \/ 3 psi \/ 0.02 MPa You may melt metal samples in vacuum using an 80mm dia half-open quartz tube with flange and 73mm dia Crucible at related products below Inspect your delivery: Please check the package for damages before accepting delivery. Should damages be found, please keep all packaging materials, take pictures, and report immediately to carrier\/MTI.\u003cbr\u003e\u003cbr\u003e\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eO.D\u003c\/td\u003e\n\u003ctd\u003e80mm ±0.5mm (3.15\")\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI.D\u003c\/td\u003e\n\u003ctd\u003e73mm \u003cspan\u003e±0.5mm\u003c\/span\u003e (2.87\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length\u003c\/td\u003e\n\u003ctd\u003e300mm (11.81\")\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Operating Temperature\u003c\/td\u003e\n\u003ctd\u003e1200\u003cspan\u003eºC\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication Notes\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0638\/4664\/6008\/files\/half_tube_60_with_crucible.jpg\"\u003e\u003c\/a\u003e\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"letter-spacing: 0pt; word-spacing: 0pt; color: #ff0000;\"\u003eVacuum pressures may only be safely used up to 1000°C\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"letter-spacing: 0pt; word-spacing: 0pt; color: #ff0000;\"\u003eThe flow rate for gases should be limited to\u0026lt;200 SCCM (or 200ml\/min) for reducing thermal shocks to the tube\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"letter-spacing: 0pt; word-spacing: 0pt; color: #ff0000;\"\u003eQuartz tubes are designed for using under vacuum and low pressure \u0026lt; 0.2 bars \/ 3 psi \/ 0.02 MPa\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cspan style=\"letter-spacing: 0pt; word-spacing: 0pt;\"\u003eYou may melt metal samples in vacuum using an 80mm dia half-open quartz tube with flange and 73mm dia Crucible at related products below\u003cbr\u003e\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"MTI","offers":[{"title":"Default Title","offer_id":44985120751755,"sku":"TQH80D300","price":0.0,"currency_code":"MYR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/4405\/3643\/files\/tube80.4.jpg?v=1764854363","url":"https:\/\/mtimalaysia.com\/products\/hqt80","provider":"MTI Malaysia \u0026 Indonesia","version":"1.0","type":"link"}