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Welding Glossary
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Nosings are available in Cast Aluminum and Cast Iron.
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For Poured Concrete
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Generally installed full step length less approx. 3" (76.2 mm) clearance at each end.
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TYPE 101 - Nose 1/4" (6.35 mm) lip. Chief use: as nosing in concrete stairs. Tread installed flush all around.
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TYPE 116 - Nose depth 1" (25.4 mm) standard. Chief use: as nosing in concrete stairs where deeper lip is desirable.
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For Steel Pan
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Generally installed full stringer to stringer length, less 1/8" (3.05 mm) clearance.
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TYPE 101SP - Nose 3/8" (9.53 mm). Chief use: as nosing on steel-pan concrete-filled stairs or superimposed on existing steps.
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TYPE 102 - Nose 3/2" x 3/8" (12.7 mm x 9.53 mm). Chief use: as nosing on steel-pan stairs. Can also be used structurally with bent-plate risers.
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TYPE 103 - Nose 3/4" x 3/4" (19.05 mm x 19.05 mm). Chief use: as structural treads with bent-plate risers or as nosings full width of stair.
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For Existing Stair Repair
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TYPE 116-A - Nose depth 1" (25.4 mm) standard. Chief use: superimposed on existing steps for repair and modernization.
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For Concrete Curbs
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Curb Bar: Sometimes used for nosing on concrete stairs.
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TYPE 150 - 1-1/2" x 1-1/2" x 3/8" (38.1 mm x 38.1 mm x 9.53 mm). Maximum length 6'0" (1.83 m)
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TYPE 250 - 2-1/2" x 2-1/2" x 1/2" (63.5 mm x 63.5 mm x 12.7 mm). Maximum length 6'0" (1.83 m)
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For Miscellaneous Uses
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TYPE 100 - Square edges. Chief uses: floor plates, trench covers, stair landing platforms, expansion joint covers.
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TYPE 110 - Rounded edges. Cheif uses: Expansion joint covers, platforms around machinery, deck treads.
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TYPE 120 - One edge rounded. Cheif use: nosings on steel grating treads and for special conditions, usually superimposed.
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Email Address: info@aagrating.com / Phone Number: (800) 962-9692 / Fax Number: (412)
771-6980
Mailing
Address: All American Grating, 3001 Grand Avenue, Pittsburgh, PA 15225
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