ASTM A424-00

Standard Specification for Steel, Sheet, for Porcelain Enameling

SCOPE
1.1 This specification covers sheet steel in coils and cut lengths for porcelain enameling. The compositions and processing of these steels are such that articles for porcelain enameling may be fabricated from them and, under proper conditions, enameled. The steels are furnished as Type I, Type II, and Type III. Type I and Type II are supplied in three qualities, Commercial Quality, Drawing Quality, and Drawing Quality Special Killed.  Type III steel is interstitial-free and does not require a quality designation.

General Information

• Status: Historical
• Publication Date: 09-Mar-2000
• ICS: 77.140.50 - Flat steel products and semi-products
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.19 - Steel Sheet and Strip

Relations

• Replaced By: ASTM A424-06 - Standard Specification for Steel, Sheet, for Porcelain Enameling
• Effective Date: 01-Mar-2006
• Referred By: ASTM C839-82(2020) - Standard Test Method for Compressive Stress of Porcelain Enamels by Loaded-Beam Method
• Effective Date: 10-Mar-2000
• Referred By: ASTM C286-22 - Standard Terminology Relating to Porcelain Enamel and Ceramic-Metal Systems
• Effective Date: 10-Mar-2000

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A 424 – 00
Standard Specification for
Steel, Sheet, for Porcelain Enameling
This standard is issued under the fixed designation A 424; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.2.1 Commercial Steel is intended for parts where bend-
ing, moderate forming, or moderate drawing may be involved.
1.1 This specification covers sheet steel in coils and cut
3.2.2 Drawing Steel is intended for fabricating identified
lengths for porcelain enameling. The compositions and pro-
parts where the draw is particularly severe or where the
cessing of these steels are such that articles for porcelain
material shall be essentially free of changes in mechanical
enameling may be fabricated from them and, under proper
properties over a period of time. Drawing Steel should be
conditions, enameled. The steels are furnished as Type I, Type
specified where the formed material shall be essentially free of
II, and Type III. Type I and Type II are supplied in two
such surface disturbances as stretcher strains or fluting without
designations, Commercial Steel and Drawing Steel. Type III
the need of prior roller leveling.
steel is interstitial-free and does not require a designation.
3.2.3 Type III interstitial-free steel is intended for fabricat-
2. Referenced Documents
ing identified parts where the most severe drawing or forming
is involved and where the material must be free of changes in
2.1 ASTM Standards:
mechanical properties over a period of time and free of such
A 568/A568M Specification for Steel, Sheet, Carbon, and
surface disturbances as stretcher strains or fluting without the
High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,
need of prior roller leveling.
General Requirements for
3.3 Porcelain Enamels:
3. Terminology
3.3.1 Ground coat enamels are glasses used primarily for
their bonding characteristics. They may be applied after proper
3.1 Types:
metal preparation (either pickle or pickle-free depending on
3.1.1 Type I has an extremely low carbon level. This
enamel system). These glasses may be applied as either dry
material is suitable for direct cover coat enameling practice,
powders or wet slips. This type enamel is suitable for all three
but this requirement must be indicated by the purchaser in
types of steel (Type I, II, or III).
accordance with 4.1.6.This material is also suitable for ground
3.3.2 Cover coat enamels are appearance glasses applied for
and cover coat enameling practice. It has good sag resistance
specific color, corrosion, alkali resistance, and so forth. These
and good formability.
enamels may be applied directly to Type I steels after suitable
3.1.2 Type II steel is suitable for applications where ground
metal preparation. They may also be applied over fired ground
and cover coat enameling operations are employed. The
coat enamels.They may be applied as either dry powder or wet
composition of the Type II steel is obtained in melting
slip.
operations.
3.3.3 Two coat-one fire enamels are special glass systems
3.1.3 Type III is an interstitial-free steel and is suitable for
applied as dry powders.They usually are applied as pickle-free
applications where ground and cover coat enameling opera-
systems. They are suitable for all three types of steel (Type I,
tions are employed. The composition of the Type III steel is
II, or III). Both the base coat (adherence promoting enamel)
obtained in melting operations. It has good sag resistance and
and the cover coat (color or other specific properties) are
excellent formability.
applied and fired at the same time.
3.2 Quality Designations:
4. Ordering Information
4.1 Orders for material under this specification shall include
This specification is under the jurisdiction of ASTM Committee A-1 on Steel,
Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee
the following information, as required, to describe adequately
A01.19on Steel Sheet and Strip.
the desired material:
Current edition approved March 10, 2000. Published May 2000. Originally
4.1.1 Quantity,
published as A 424 – 58 T. Last previous edition A 424 – 97.
Annual Book of ASTM Standards, Vol 01.03. 4.1.2 ASTM specification number and date of issue,
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