ASTM A540 PDF

ASTM A/AM Grade B23 is grade specification for alloy steel bolts, hex bolts, heavy hex bolts, stud bolts, etc for special purpose bolting. Find Grade B23 . ASTM A/AM Grade B22 is grade specification for alloy steel bolts, hex bolts, heavy hex bolts, stud bolts, etc for special purpose bolting. Find Grade B22 . ASTM A/AM Grade B21 is grade specification for alloy steel bolts, hex bolts, heavy hex bolts, stud bolts, etc for special purpose bolting. Find Grade B21 .

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One specimen from a set of 3 may be less than 35 ft-lbf 47 J but not less than 30 ft-lbf 41J. Within the text, the SI units are shown in brackets. Bolting materials as used in this specification cover rolled or forged bars, rotary pierced or extruded seamless tubes, bored bars, or forged hollows from forged or rolled bar segments to be manufactured into bolts, studs, washers, and nuts.

The hardness of material in the quenched and tempered or quenched, temepred and stress-relieved condition shall be within the limits in hardness column of the mechanical properties table. The hardness shall be determined on the surface of the material removal of decarburization.

B Unless otherwise specified, separate determinations may vary from the specified ranges, except that elements in any heat mush not vary both above and below the specified range. The specification is expressed in both inch-pound units and in SI units. One specimen from a set of 3 may be less than 25 ft-lbf 34 J but not less than 20 ft-lbf 27J.

These bolts need to undergo charpy v notch impact test as compulsory requirement. D Silicon content is 0. ASTM A Grade B21 is a high tensile alloy steel bolting grade intended for special application such as nuclear power plant installations.

The values stated in either inch-pound units or SI units are to be regarded separately as standard. The hardness of material in the annealed condition shall not be greater than HB.

The minimum average of 3 specimens shall not be less than 30ft-lbf 41 J. However, unless the order specifies the applicable “M” specification designation SI unitsthe material shall be furnished to inch-pound units. The hardness of material in the quenched and tempered or quenched, temepred and stress-relieved condition shall be within the limits in hardness column of the mechanical properties table. One specimen from a set of 3 may be less than 35 ft-lbf 47 J but not less than 30 wstm 41J.

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However, if desired by the purchaser, cold finishing a5540 be specified. Bolting ordered in the liquid quenched and tempered condition shall be uniformly reheated froma temperature below the cooling transformation range to the proper austenitizing temperature, quenched in a liquid medium under substantially uniform conditions, and then uniformly reheated for tempering. Supplementary requirements of an optional nature are provided for use when special 5a40 is desired.

ASTM A540 / A540M Grade B22 Class 1/2/3/4/5 Alloy Steel Bolting

One specimen from a set of 3 may be less than 30 ft-lbf 41 J but not less than 25 ft-lbf 34J. The hardness of material in the quenched and tempered or quenched, temepred and stress-relieved condition shall be within the limits in hardness column of the mechanical properties table.

Secondary processes are also permitted whereby steels made from these a5540 processes are remelted using electroslag-remelting, or vacuum-arc re-melting preocesses.

Bolting materials as used in this specification cover rolled or forged bars, rotary pierced or extruded seamless tubes, bored bars, or forged hollows from forged or rolled bar segments to be manufactured into boltsstuds, washers, and nuts.

ASTM A – Standard specification for Alloy Steel Bolting for Special Applications This specification covers 5 grades of bolting with axtm classes of yield strength ranging from 50 to ksi [ to Mpa] for used in high temperature service such as fasteners for pressure bessel and valve flanges.

The hardness of material in the annealed condition shall not be greater than HB. The minimum average of 3 specimens shall not be less than 30ft-lbf 41 J.

This abstract is a brief summary of the referenced standard. These supplementary requirements call for additional tests to be made and when desired. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. It shall be quenched in a liquid medium under substantially uniform conditions and then uniformly reheated for tempering. C Phosphorus and sulfur content is 0.

Historical Version s – view previous versions of standard. Such annealed bolting material is not intended to be used without subse-quent quenching and tempering as specified in 5.

BoltPort primarily stocks and supply A Grade Boltings for high temperature service. The hardness of material in the annealed condition shall not be greater than HB. B Unless otherwise specified, separate determinations may vary from the specified ranges, except that elements in any heat mush not vary both above and below the specified range.

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ASTM A / AM – 15 Standard Specification for Alloy-Steel Bolting for Special Applications

Bolting material ordered in the annealed condition shall have a structure suitable for machining. One specimen from a set of 3 may be less than 25 ft-lbf 34 J but not less than 20 ft-lbf 27J.

This specification is expressed in both inch-pound units and in SI units. Bolting material ordered in the annealed condition shall have a structure suitable for machining. C Phosphorus and a5440 content is 0.

The grade and class shall be specified by the purchaser. This specification covers 5 grades of bolting with twelve s540 of yield strength ranging from 50 to ksi [ to Mpa] for used in high temperature service such as fasteners for pressure bessel and valve flanges. Such annealed material is not intended to be used without subsequent quenching and tempering. The minimum average of 3 specimens shall not be less than 35ft-lbf 47 J.

Tensile test, hardness, and impact test shall be measured to conform to the required mechanical properties.

Bolting materials as used in this specification cover rolled or forged bars, rotary pierced or extruded seamless tubes, bored bars, or forged hollows from forged or rolled bar segments to be manufactured into bolts, studs, washers, and nuts.

Bolting material ordered in the annealed condition shall have a structure suitable for machining. One specimen from a set of 3 may be less than 35 ft-lbf 47 J but not less than 30 ft-lbf 41J.

These bolts are solution annealed and age hardened to provide maximum efficiency in their applications.

The minimum average of 3 specimens shall not be less than 35ft-lbf 47 J. One specimen from a set of 3 may be less than 30 ft-lbf 41 J but not less than 25 ft-lbf 34J. Bolting ordered in the liquid quenched and tempered condition shall be uniformly reheated froma temperature below the cooling transformation range to the proper austenitizing temperature, quenched in a liquid medium under substantially uniform conditions, and then uniformly reheated for tempering.

These supplementary requirements only apply when specified individually by the purchaser in the purchase order or contract.