brick grades

Building brick (per ASTM C62)
Grade Uses
SW for severe weather
MW for moderate weather
NW no weather, brick that will not be exposed to weather.

 

Face brick (per ASTM C216)
Grade Uses
FBS general use
FBX mechanically perfect
FBA a grade permitting considerable non-uniformity, to give architects some variety in design

 

Sand-lime brick
(per ASTM C73)
Grade Use
SW severe weather
MW moderate weather

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