ASTM A532/A532M-93a(1999)e1

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
e1
Designation: A 532/A 532M – 93a (Reapproved 1999)
Standard Specification for
Abrasion-Resistant Cast Irons
This standard is issued under the fixed designation A 532/A 532M; 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.
e NOTE—Keywords were added editorially in October 1999.
1. Scope 3.1.5 Heat treat condition (see 5.1),
3.1.6 Hardness level, if supplied hardened or hardened and
1.1 This specification covers a group of white cast irons that
stress relieved, and
have been alloyed to secure high resistance to abrasive wear in
3.1.7 Hardness method, Brinell, Rockwell, Vickers (see
the applications of the mining, milling, earth-handling, and
Section 9). If the hardness method is not specified, it shall be
manufacturing industries.
at the manufacturer’s option.
1.2 Simple and low-alloy white cast irons that consist
essentially of iron carbides and pearlite are specifically ex-
4. Method of Manufacture
cluded from this specification.
4.1 These alloys may be made by any suitable melting
1.3 The values stated in inch-pound units or SI units are to
process.
be regarded separately as the standard. Within the text, SI units
4.2 If the casting is to be chilled or otherwise specially
are shown in brackets. The values stated in each system are not
treated on any portion, the inquiries and the purchase order
exact equivalents; therefore, each system must be used inde-
shall so state and a properly marked drawing of the casting will
pendently of the other. Combining values from the two systems
accompany both the inquiry and the purchase order.
may result in nonconformance with the specification.
5. Heat Treatment
2. Referenced Documents
5.1 The casting will be supplied in one of the following
2.1 ASTM Standards:
conditions:
E 10 Test Method for Brinell Hardness of Metallic Materi-
2 5.1.1 As-cast,
als
5.1.2 As-cast and stress relieved,
E 18 Test Methods for Rockwell Hardness and Rockwell
2 5.1.3 Hardened,
Superficial Hardness of Metallic Materials
5.1.4 Hardened and stress relieved, or
E 92 Test Method for Vickers Hardness of Metallic Mate-
2 5.1.5 Softened for machining.
rials
5.2 Unless otherwise specified by the purchaser, the manu-
E 350 Test Methods for Chemical Analysis of Carbon Steel,
facturer shall supply the castings in the heat treatment he
Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and
deems best for the application.
Wrought Iron
5.3 If the heat treatment specified for delivered condition is
E 351 Test Methods for Chemical Analysis of Cast Iron—
not that of final use, it shall be the responsibility of the
All Types
purchaser to provide the additional heat treatment.
3. Ordering Information 5.4 Class II and Class III alloys are frequently ordered in the
annealed condition with a maximum hardness of 400 HB. After
3.1 Orders for material in this specification should include
machining operations are performed the castings may then be
the following information:
hardened. If both annealing and machining are to be performed
3.1.1 Quantity,
by the manufacturer, as specified in the inquiry, contract, or
3.1.2 Specification number, class, and type,
order, the purchaser may then specify delivery in the hardened
3.1.3 Description of the casting, pattern number, or drawing,
condition. If the purchaser specifies delivery in the annealed
3.1.4 Chilling of the casting, if required (see 4.2),
condition, subsequent hardening (and stress-relief, if it is
desired) is the responsibility of the purchaser.
This specification is under the jurisdiction of ASTM Committee A-4 on Iron
Castings and is the direct responsibility of Subcommittee A04.01 on Grey and White 6. Chemical Composition
Iron Castings.
6.1 The composition of the metal of a class and type
Current edition approved Jan. 15, 1993 and April 15, 1993. Published November
produced under this specification shall fall within the ranges
1993. Originally published as A 532–65 T. Last previous edition A 532–93.
Annual Book of ASTM Standards, Vol 03.01.
Annual Book of ASTM Standards, Vol 03.05.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
A 532/A 532M
prescribed in Table 1 for that class and type. 6.3.1.6 Phosphorus by the Molybdenum Blue Photometric
Method.
6.2 Spectrographic, X-ray, or wet chemical laboratory tech-
6.3.1.7 Sulfur by the Combustion-Iodate Titration Method.
niques are acceptable for routine and control determinations,
6.3.2 The following is in accordance with Test Methods
but shall be standardized against, and give essentially the same
E 350:
results as, the umpire methods specified in 6.3 of this specifi-
6.3.2.1 Molybdenum by the Photometric Method.
cation.
7. Microstructure
6.3 In case of dispute, umpire determinations of the chemi-
cal analysis of the metal shall be made using ASTM standard 7.1 The alloys covered by this specification are ex
...