Material Rates
The material rate changes in the 2021-01 release represents fluctuations in the materials markets. There were no material price assumption changes in this release.
In general, the material market saw significant growth that was driven by strong demand in manufacturing as the global economy continues to recover from the COVID-19 Pandemic.
The table shows the variation by material type between the 2020-09 to 2021-01 Regional Data Libraries Regional Data Libraries releases.
Non-Ferrous
Ferrous Metals
Plastics
Aluminum
20.6%
Ductile Iron
36.7%
Polyethylene
-26.7%
Aluminum Bronze
24.5%
Galvanized Steel
25.0%
Polypropylene
34.0%
Brass
23.3%
Low-Alloy Steel
25.3%
Polystyrene
7.2%
Bronze
24.0%
Malleable Cast Iron
36.5%
 
 
Copper
17.8%
Stainless Steel
18.6%
 
 
Gray Iron
36.5%
Steel
27.4%
 
 
Heat Resistant Super Alloys
20.5%
Unalloyed Steel
24.7%
 
 
Magnesium
30.8%
 
 
 
 
Polypropylene
34.0%
 
 
 
 
Polystyrene
7.2%
 
 
 
 
Titanium
23.5%
 
 
 
 
Zinc
20.1%
 
 
 
 
Zinc-Aluminum
20.1%