ASTM-A657 2008

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A657/A657M-03(2008)e1 Standard Specification for Tin Mill Products, Black Plate Electrolytic Chromium-Coated, Single and Double Reduced

Published By	Publication Date	Number of Pages
ASTM	2008	7

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Categories: 77.140.50 - Flat steel products and semi-products, ASTM

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Description

1.1 This specification covers single- and double-reduced tin mill black plate electrolytically coated with chromium and chromium oxide. The steel is furnished in coils and cut lengths for use in the manufacture of cans, closures, crowns, and other products.

1.2 This specification is applicable to orders in either inch-pound units (as A 657) which is supplied in thicknesses from 0.0050 to 0.0149 in. or in SI units [as A 657M] which is supplied in thicknesses from 0.127 to 0.378 mm.

1.3 The values stated in either inch-pound or SI units are to be regarded as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents. Therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Ordering Information
2	Chromium Coating Weights [Masses] Surface Appearance and Finish Oiling
3	Workmanship and Quality Level Requirements General Requirements for Delivery Keywords A1. METHOD FOR DETERMINATION OF METALLIC-CHROMIUM COATING WEIGHT (MASS) ON CHROMIUM-PLATED TIN-FREE STEEL A1.1 Scope A1.2 Principle A1.3 Reagents A1.4 Apparatus A1.5 Preparation of Chromium Calibration Curve
4	A1.6 Procedure A1.7 Calculations A2. PREFERRED TEST METHOD FOR DETERMINATION OF CHROMIUM IN THE OXIDE ON THE SURFACE OF ELECTROLYTIC CHROMIUM COATED STEEL A2.1 Scope A2.2 Summary Of Test Method A2.3 Reagents FIG. A1.1
5	A2.4 Apparatus A2.5 Preparation of Chromium Calibration Curve A2.6 Use of Blank Disc or Sample Size A2.7 Calculation A3. METHOD FOR DETERMINATION OF CHROMIUM IN THE OXIDE ON THE SURFACE OF ELECTROLYTIC CHROMIUM-COATED STEEL A3.1 Scope A3.2 Summary of Method A3.3 Reagents
6	A3.4 Apparatus A3.5 Preparation of Chromium Calibration Curve FIG. A3.1
7	A3.6 Procedure A3.7 Calculation

Additional information

Standard Title	A657/A657M-03(2008)e1 Standard Specification for Tin Mill Products, Black Plate Electrolytic Chromium-Coated, Single and Double Reduced
Published Code	ASTM
Publication Date	2008
Pages Count	7
ICS Codes	77.140.50 - Flat steel products and semi-products

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ASTM-A657 2008

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