Standard Tolerances

Product catalog summary

Overview: The document provides technical specifications and standard tolerances for engineered perforated and embossed metal items. It outlines the tolerances for various dimensions and characteristics of metal sheets, including length, width, thickness, squareness, camber, flatness, and open area percentages.

Standard Tolerances:

Length: Tolerance of 0 to +10 mm.
Width: Governed by steel mill standards.
Thickness: Governed by steel mill standards.
Squareness: Tolerance of 5 mm per 1 meter.
Camber: Maximum arrow of 5 mm between two points on the concave side (distance of 1 meter).
Flatness: Maximum height of 15 mm between the horizontal plane and the sheet.
Open Area: Different tolerances for areas less than 40% and greater than 40% (15 mm and 30 mm respectively).
Burr: Tolerance of 0.2 mm.
Un-perforated Margins: Vary from 4 to 20 mm, with specific conditions for margins equal to or less than 8% of the perforated area.

Tolerance for Tailor-made Sheet: Specific tolerances are provided for tailor-made sheets, with notes on conditions for margins and other dimensions.

Tolerance for Standard Stock Sheet and Coil: Similar tolerances apply, with additional notes on width and other dimensions.

Reference Standards: The document notes that tighter tolerances can be arranged by prior agreement and provides contact information for further inquiries.

Catalog excerpts

ERTTI PRGCORVI SOLUZIONI E COMPONENTI IN LAM I ERA FORATAE BUGNATA ENGINEERED PERFORA TED AND EMBOSSED METAL ITEMS Standard Tolerances

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Standard Tolerances Tolerance for Standard Stock Sheet Un-perforated margins // Length Steel mill Steel mill They can vary from 4 to 20 mm Referred to the longside projection Maximum arrow between two points on the concave side (distance 2 points: 1 meter) Maximum height between the horizontal plan and the sheet Tolerance for Tailor-made Sheet Width (shearing) Length of the perforated area Width of the perforated area Steel mill Steel mill Refer to mill tolerance norm Refer to mill tolerance norm Refer to mill tolerance norm This tolerance is valid if margins are = and < 8% of perforated area,...

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Reference Standards Tighter tolerances are possible by prior arrangement Note: In the case of Width = 1000, 1250 or 1500 mm, unless otherwise specified, it will be considered the product obtained from commercial formats and therefore the tolerances in the width of the raw material.

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SOLUZIONI E COMPONENTI IN LAMIERA FORATA E BUGNATA ENGINEERED PERFORA TED AND EMBOSSED MET AL ITEMS Via Lombardia, 1 - 24030 Medolago - Bergamo - Italy Tel. +39.035.4993311 - Fax +39.035.4993400 Web: www.gattiprecorvi.com - E-mail: [email protected]

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Standard Tolerances

Standard Tolerances

Catalog excerpts

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