Cast Abrasive Nosings - Barry Pattern & Foundry

Cast Abrasive Nosings & Treads

Cast Iron B-1SP / Cast Aluminum B-1 BarryCraft Construction Casting Company's abrasive stair nosings and treads are designed for areas which are subjected to heavy foot traffic such as schools, public buildings, subways and shopping malls. BarryCraft Construction Casting Company's stair nosings and treads are attractively designed, non-corrosive, economically installed and will last virtually the life of the building.

Cast Abrasive Nosings & Treads:
Short form specifications

Nosings / treads will be BarryCraft Alumatread or Feratread style as manufactured by Barry Pattern & Foundry Co, Birmingham, AL. Surface will have silicon carbide abrasive, a minimum of 2-1/4ounces per square foot to a minimum of 1/32 of an inch.

All castings will be of uniform quality, free from blow holes, shrinkage defects, swells, cracks, or other defects. Treads will be true to pattern. Casting material will be of high quality iron or aluminum. Castings will be free of fins, burrs and slag. Cast iron will have one coat of black paint, aluminum will have a natural sand cast finish.

Widths available: 3" and 4" are standard. Other widths available from 2" to 12".

Standard surface: Cross-hatched abrasive.

Other surfaces available: Plain or fluted abrasive - must be specified.

Standard anchor for fresh concrete: Wing anchor.

Available anchor: Cast on bolt - must be specified.

Standard anchor for set concrete: Expansion shield or 1/4" Tapcon anchor.

Table A: Thickness by width for nosings and treads
Thickness	Feratread	Alumatread
In Inches	Abrasive Cast Iron	Abrasive Cast Aluminum
3/8"	Up to 6"	Up to 6"
7/16"	Over 6" to 10"	Over 6" to 10"
1/2"	Over 10" to 24"	Over 10" to 44"

Safety Nosing and Threshold Information for Engineers, Architects, Fabricators & Contractors

Characteristics	Cast Iron	Cast Aluminum
Safety	Cast iron surface and nose with abrasive and cross hatched surface.	Cast aluminum and nose with abrasive and cross hatched surface.
Durability	Lifetime - Outside Lifetime - Inside	Very Good - Outside Very Good - Inside
Cost (Initial)	Economical	Medium Economy
Color and Finish	Natural or with black asphaltic coating with abrasive grit showing on the surface.	Muted aluminum brightness with attractive abrasive grit showing on the surface.
Design	Patterns are inexpensively made for any design - curves and mitres available.	Patterns are inexpensively made for any design - curves and mitres available.
Sizes	Width 1" variable to 24" Length to 5'6"	Width 1" variable to 44" Length to 5'6"
Anchoring	Wing Type Cast On Screws Expansion Shields	Wing Type Cast On Screws Expansion Shields
Related Trade Names	Ferrogrit Feralun	Alumogrit Alumalun

Noses	Backs

(Click to enlarge)

Anchorage details

Style B-1 with wing anchor set into poured in place concrete.	Style B-5 bolted to end angles and riser plates. May also have cast on end pieced for bolting through stringer.	Style B-16A For wide coverage with beveled back. Mounted on existing concrete with adhesive and expansion shields.

Style B-1SP with bolt type cast on anchor set into steel pan stairs.

Nosings for poured-in-place stairs*
	Style B-1 Nose 1/4" lip. Most popular style.
	Style B-16 Standard nose depth 1". Nose may be furnished up to 2" depth.
*Installed up to 3" from end of steps and even with front of riser line.

Nosings for concrete-filled steel pans Installed full width of stair less 1/8 " from each end.
	Style B-1SP nose 3/8" lip. May also be superimposed on existing steps.
	Style B-2 nose 1/2" x 3/8 ". Used as a nosing. May also be used structurally. Specify if structural.
	Style B-3 nose 3/4"x 3/4". Used as a nosing. May also be used structurally. Specify if structural.
	Style B-16A standard nose depth 1". Nose may be furnished up to 2" depth, but must be specified. Style B-16A may be used as a wide coverage repair tread with a beveled back.

Cast Iron B-16

Treads for other uses
	Style B-100 square edges. For use as floor landing plate or expansion joint cover.
	Style B-110 is used the same as style B-100 but has two rounded edges.
	Style B-120 is frequently used as a grating nosing. May also be used on a steel pan as a barrier free nosing. One edge rounded.

Curb bar
Style CB-15A	Style CB-25A	Curb bar is used primarily as heavy-duty curb protector, but can also be used as a stair nosing. Maximum length is 5'6" long. Cast on anchor is standard.