ASTM B898 - 11 standard specification for reactive and refractory metal clad plate

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Source: ASTM International

This specification covers plate consisting of a base metal to which is bonded, integrally and continuously, on one or both sides a layer of one of the following: titanium, zirconium, tantalum, niobium, and their alloys. The material generally is intended for pressure vessel use. The cladding metal shall be bonded to the base metal by any cladding operation that will produce a clad product which will conform to the requirements of this specification. When the cladding operation does not affect the chemical composition of the cladding or base metal, or both, the chemical analysis, in accordance with cladding, or base metal specifications or both, may be performed prior to the cladding operation. All heat treatments shall be performed as needed in the cladding operation unless otherwise specified or agreed between the purchaser and the manufacturer. Mechanical testing of the base metal, in accordance with the base metal specification, may be performed prior to the cladding operation. The tensile properties shall be determined by a tension test on the base metal only in accordance with the testing requirements of the base metal specification. The specimen orientation, location with respect to thickness, and number of tests and retests shall be in accordance with the requirements of the base metal specification when tension, bend, and impact tests shall be performed. The product surfaces shall be free of excess imperfections and extraneous materials as determined by visual examination.

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 plate consisting of a base metal to which is bonded, integrally and continuously, on one or both sides a layer of one of the following: titanium, zirconium, tantalum, niobium, and their alloys. The material generally is intended for pressure vessel use.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. The values in parentheses and in metric tables are provided for information only.

2. Referenced Documents (purchase separately)

ASTM Standards
A265 Specification for Nickel and Nickel-Base Alloy-Clad Steel Plate
A578/A578M Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications
B265 Specification for Titanium and Titanium Alloy Strip, Sheet, and Plate
B393 Specification for Niobium and Niobium Alloy Strip, Sheet, and Plate
B551/B551M Specification for Zirconium and Zirconium Alloy Strip, Sheet, and Plate
B708 Specification for Tantalum and Tantalum Alloy Plate, Sheet, and Strip

ASME Code
BoilerandPressureVes Divisions 1, 2, 3

Military Standard
MIL-J-24445A Joint, Bimetallic Bonded, Aluminum to Steel

Index Terms

clad metal; clad plate; cladding; niobium; tantalum; titanium; zirconium: Zirconium (Zr); Base-metal clad plate; Niobium and niobium alloys--specifications; Refractory metals/alloys--specifications; Tantalum (Ta)/tantalum alloys--specifications; Titanium (Ti)/alloys--specifications;

ICS Code

ICS Number Code 77.150.50 (Titanium products)

DOI: 10.1520/B0898-11

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ASTM B898 - 11 standard specification for reactive and refractory metal clad plate

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