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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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. One specimen from a set of 3 may be less than 25 ft-lbf 34 J but not less than 20 ft-lbf 27J. The hardness of material in the annealed condition shall not be greater than HB.

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. 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.

Several grades of steel are covered. Bolting material ordered in the annealed condition shall have a structure suitable for machining. D Silicon content is 0. This specification is expressed in both inch-pound units and in SI units. Link to Active This link will always route to the current Active version of the 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.

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The minimum average of 3 specimens shall not be less than 30ft-lbf 41 J. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. The hardness of material in the annealed condition shall not be greater than HB. This specification covers regular and special-quality alloy steel bolting materials which may be used for nuclear and other special applications. 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.

These bolts need to undergo charpy v notch impact test as compulsory requirement. 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.

Combining values from the two systems may result in nonconformance with the specification. 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 minimum average of 3 specimens shall not be astmm than 35ft-lbf 47 J. Bolting material ordered in the annealed condition shall have a structure suitable for machining.

ASTM A ASME SA Standard Specification for Alloy-Steel Bolting for Special Applications

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 covers a group astj common requirements that shall apply to steel flanges, forged fittings, valves, and parts for piping applications under any of the following individual product specifications.

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The hardness shall be determined on a5440 surface of the material removal of decarburization. D Silicon content is 0. The hardness of material in the annealed condition shall not be greater than HB. This abstract is a brief summary of the referenced standard.

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. Such annealed material is not intended to be used without subsequent quenching and tempering. These supplementary requirements only apply when specified individually by the asm in the purchase order or contract. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the a54.

ASTM A540 / A540M Grade B21 Class 1/2/3/4/5 Alloy Steel Bolting

Supplementary requirements of an optional nature are provided for use when special quality is desired. 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.

Bolting material ordered in the annealed condition shall have a structure suitable for machining. D Silicon content is 0.

These bolts need to undergo charpy v notch impact test as compulsory requirement. The values stated in each system are not exact equivalentsl therefore, each system must be used independently of the other. The hardness shall be determined on the surface of the material removal of decarburization.

These supplementary requirements call for additional tests to be made and when desired. Secondary processes are also permitted whereby steels made from these primary processes are remelted using electroslag-remelting, or vacuum-arc re-melting preocesses.