Industry News
Complete Analysis of Economizer Tube Grades HT150 and HT200 (GB/T 9439 Gray Cast Iron)
Under GB/T 9439 the numbers in HT150 and HT200 mean minimum tensile strength of 150 and 200 MPa. HT200 is stronger and more wear resistant, used for …
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High-Chromium Wear-Resistant Cast Iron and Alloy Steel Grate Bars
High-chromium iron KMTBCr26 runs to 850 C at HRC58 to 62, with two to three times the wear life of ordinary heat-resistant iron. Austenitic …
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Common Heat-Resistant Cast Iron Materials for Grate Bars
Heat-resistant grate bar irons come in silicon, chromium and aluminium families. RTSi5 works at 750 to 900 C, RTCr2 and RTCr16 at 800 and 950 C, and …
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Common Gray Cast Iron Grate Bar Materials
HT200 and HT250 are the usual grades: easy to cast and cheap, but limited to 480 to 520 C, with oxidation and cracking above 600 C, so they suit small …
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Technical Analysis of Active and Passive Chain Grate Bars
Chain grate driving bars carry the pull, usually KTH350 malleable iron or ZG230-450 steel for heavy duty; passive bars face the flame in RTSi5 iron at …
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High-Temperature Performance of RTSi5 Heat-Resistant Cast Iron Grate Bars
RTSi5 heat-resistant iron holds 4.5 to 5.5 percent silicon, works at 750 to 850 C and takes short peaks at 880 C. Its silica surface film gives two …
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