DAL References for Protection Against Metal Dusting

DAL References for Protection Against Metal Dusting

We treat our customer’s specific processing conditions in confidence but we recognise that those new to aluminising for metal dusting protection require some reference information. Below is a sample list of application areas where DAL has aluminised tubes and components for metal dusting protection and an indication of years of operation without need for replacement.

Steam methane reforming

Material: stainless steel
Component: tubes
Lifespan: 5 years but only due to failure on the non-aluminised welded areas. Aluminised tubes replaced every 5 years for the customer.

Gas heated reformer – ammonia production

Material: Alloy 800H
Component: tubes
Lifespan: in one plant, aluminised tubes ran for 17 years in operation before the plant was shut down. In another similar plant, aluminised tubes have been in operation for 7 years.

Steam Reformer – ammonia production:

Material: 25/35 CrNiNb
Component: tubes
Lifespan: aluminised tubes in operation since late 2013.

Steam Reformers for direct reduction of iron ore:

Material: stainless steel
Component: tubes
Lifespan: 3 plants of similar design. Aluminised tubes have been in operation for 7 years, 6 years and 5 years respectively.

Syngas / HyCO production:

Material: Alloy 690
Component: tubes
Lifespan: numerous plants in operation, with aluminised tubes in two plants having been in operation for over 10 years.

Methanol Plants:

Material: various materials from stainless steel to Alloy 696
Components: tubes
Lifespan: tubes in numerous plants around the world. The oldest aluminised tubes have now been in operation for more than 5 years.

Petroleum Refining:

Material: stainless steel
Components: tubes
Lifespan: tubes in numerous plants around the world. The oldest aluminised tubes have now been in operation for more than 10 years.

Factsheets

Alonizing™, Aluminizing and Calorizing; What's the Difference?
Metal Dusting: Impacts, Causes and Prevention
Aluminising and its Uses in the Process Industry

To see a complete list of the factsheets that we offer, and for more information on the coating services that we supply at Diffusion Alloys, click here to see a complete list of our factsheets.