News

What are Refractories used for?

More related products: Fused Cast AZS Block; Fused Cast Alumina Block; Fused Cast High Zirconia Block; Fused Cast Skid Rail Block

Refractories are used by the metallurgy industry in the internal linings of furnaces, kilns, reactors and other vessels for holding and transporting metal and slag. In non-metallurgical industries, the refractories are mostly installed on fired heaters, hydrogen reformers, ammonia primary and secondary reformers, cracking furnaces, incinerators, utility boilers, catalytic cracking units, coke calciner, sulfur furnaces, air heaters, ducting, stacks, etc. Majority of these listed equipment operate under high pressure, and operating temperature can vary from very low to very high (approximately 900°F to 2900°F). The refractory materials are therefore needed to withstand temperatures over and above these temperatures. Listed below is the sample melting temperatures of key metallurgical elements where refractory application is critical.

KEY MATERIALS	MELTING TEMPERATURES (°F)
Iron	2800 °F
Nickel	2650 °F
Copper	1980 °F
Aluminum	1220 °F
Zinc	780 °F
Lead	620 °F
Tin	450 °F

Due to the extremely high melting point of common metals like iron, nickel and copper, metallurgists have to raise furnace temperatures to over 2800°F. Furnaces are lined with refractory materials such as magnesia, which has a melting point of 5070 degrees.

Zhengzhou Sunrise Refractory Co., Ltd. is mainly engaged in the research and development of glass refractory products. Sunrise as a professional glass refractory manufacturer can provide excellent products such as fused cast AZS block 33#,36#,41#, fused cast alumina block, silica brick, magnesia brick, zircon brick, corundum block, zircon mullite brick, mullite series brick, sillimanite brick, etc. which all have passed the ISO international certified.

Read more: Practical Application and Abrasion Resistance of Refractory Materials; Casting Technology Of Fused Cast AZS Blocks For Glass Industry; Profile Of Fused Cast AZS Block; How To Choose Refractory Bricks And Its Basic Property; How Do You Measure The Quality Of A Fused Cast AZS Block?

Leave Message

For more information on any of our products please get in touch using the form below. One of our sales team will respond to your enquiry as soon as possible.