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Conveyor belt material for 300 °C

We have a conveyor belt made up of Stainless steel ( it is like a net), this belt has to move in a oven which has temperatures of 300 °C, and so this belt is cracking because of thermal tensions and it is turning at bends because of the high temperature, so we need to replace that, Please suggest some material that can withstand this temperature and serve the purpose.

E Anil Kumar
- Hyderabad, India
2002

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I think this problem was solved generations ago for the bakery, heat-treating industries, etc. You probably need an austenitic stainless steel of proper design and gauge. Take a look at the Tabletop(R) chain from Rexnord. Don't know if it's available in India, but you can get some ideas.

Ken Vlach [deceased]
- Goleta, California
Finishing.com honored Ken for his countless carefully researched responses. He passed away May 14, 2015.
Rest in peace, Ken. Thank you for your hard work which the finishing world, and we at finishing.com, continue to benefit from.
2002

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I am not an expert on this, but usually we use 310 type stainless steel for heat resistant. I believe this is the material they use for the mesh belt in tempering furnace, which operate at about 900 °C. I think 300 °C is pretty 'cold', and any type of stainless steel mesh belt conveyor should be able to withstand the heat. Several things come across my mind:wire gauge of the mesh belt, sudden cooling of the belt, too many workpieces on the belt (overloaded), etc.

Hartarto Ciputra
- Surabaya, Indonesia
2003

Dear Sir - I believe the best material is Haynes 214 - it is used in ceramic industry to fire at HT and resists oxidisation by forming and Al2O3 layer.

Tim Lawrence
- Australia
2005