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  • ASTM
    A942-95(2012) Standard Specification for Centrifugally Cast White Iron/Gray Iron Dual Metal Abrasion-Resistant Roll Shells
    Edition: 2012
    $87.60
    Unlimited Users per year

Description of ASTM-A942 2012

ASTM A942 - 95(2012)

Standard Specification for Centrifugally Cast White Iron/Gray Iron Dual Metal Abrasion-Resistant Roll Shells

Active Standard ASTM A942 | Developed by Subcommittee: A04.01

Book of Standards Volume: 01.02




ASTM A942

Abstract

This specification covers double pour, centrifugally cast, abrasion-resistant roll shells for general application. The outer layer is white iron and the inner layer is gray iron and there shall be no gradient of mottled iron these layers. Both the white and the gray irons may be melted by any suitable melting process. The white iron portion of the casting shall be produced by chemistry rather than chilling. A chemical analysis of the white and gray irons shall be taken and the chemical compositions shall be controlled to obtain the required mechanical properties. The white iron (Types I, II, III, and IV) shall conform to the specified Brinell hardness and the gray iron (Class Nos. 20, 25, 30, and 35) shall conform to the specified tensile strength. The minimum thickness of the white iron layer is given. Hardness and tension tests of the cast dual metal shall be performed.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification covers double pour, centrifugally cast, abrasion-resistant roll shells for general application. The outer layer is white iron and the inner layer is gray iron. There shall be no gradient of mottled iron between the white iron and the gray iron.

1.2 The values stated in either inch-pound units or SI units are to be regarded separately 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.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

A48/A48M Specification for Gray Iron Castings

E8 Test Methods for Tension Testing of Metallic Materials

E10 Test Method for Brinell Hardness of Metallic Materials


Keywords

abrasion-resistant; cast iron; centrifugal casting; dual metal; gray cast iron; roll shell; white cast iron ;


ICS Code

ICS Number Code 77.140.50 (Flat steel products and semi-products)


DOI: 10.1520/A0942-95R12

ASTM International is a member of CrossRef.

ASTM A942

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