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 .

Author: Dizragore Brat
Country: Argentina
Language: English (Spanish)
Genre: Politics
Published (Last): 21 September 2011
Pages: 359
PDF File Size: 17.6 Mb
ePub File Size: 7.6 Mb
ISBN: 160-6-72863-369-5
Downloads: 18384
Price: Free* [*Free Regsitration Required]
Uploader: Tojagore

ASTM A/AM Grade B23 Class 1/2/3/4/5 Bolting

D Silicon content is 0. The minimum average of 3 specimens shall not be less than 35ft-lbf 47 J. The minimum average of 3 specimens shall not be less than 35ft-lbf 47 J. The hardness of material in the a5540 condition shall not be greater than HB. These bolts are solution annealed and age hardened to provide maximum efficiency in their applications.

One specimen from a set of sstm 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. This specification is expressed in both inch-pound units and in SI units. These supplementary requirements call for additional tests to be made and when desired shall be so stated in the order, together with the acceptance limits required. 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 asfm substantially uniform conditions, and then uniformly reheated for tempering.

Bolting material ordered in the annealed condition shall have a structure suitable for machining. Ast, annealed material is not intended to be used without subsequent quenching and tempering. These bolts need to undergo charpy v notch impact test as compulsory requirement.

  KERSHAW IAN THE NAZI DICTATORSHIP PDF

Within the text, the SI units are shown in brackets.

ASTM A/AM Grade B21 Class 1/2/3/4/5 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. Historical Version s – view previous versions of 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 asttm range. Combining values from the two systems may result in non-conformance with the standard.

D Silicon content is 0.

C Phosphorus and sulfur content is 0. The minimum average of 3 specimens shall not be less than 30ft-lbf 41 J.

The hardness of material in the annealed condition shall not be greater than HB. Secondary processes are also permitted whereby steels made from these primary processes are remelted using electroslag-remelting, or vacuum-arc re-melting preocesses. This specification covers regular and special-quality alloy steel bolting materials which may be used for nuclear and other special applications. The hardness of material in z540 annealed condition shall not be greater than HB. Such annealed material is not intended to be used without subsequent quenching and tempering.

ASTM A Grade B22 is a high tensile alloy steel bolting grade intended for special application such as nuclear power plant installations.

The minimum tempering temperature shall be C Phosphorus and sulfur content is 0. These supplementary requirements only apply when specified individually by the purchaser in the purchase order or contract.

Bolting material ordered in the annealed condition shall have a structure suitable for machining. The minimum average of 3 specimens shall not be less than 30ft-lbf 41 J.

The minimum average of 3 specimens shall not be less than 25ft-lbf 34 J. The primary melting may incorporate separate degassing or refining The molten steel may be vacuum-treated prior to or during pouring of the ingot.

  DARK CITADEL MASTERS OF THE SHADOWLANDS 2 PDF

These bolts need to undergo charpy v notch impact test as compulsory requirement. 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 steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, molybdenum, vanadium. 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.

Supplementary requirements of an optional nature are provided for use when special quality is desired. The hardness shall be determined on the surface of the material removal of decarburization.

The specification is expressed in both inch-pound units and in SI units. This specification covers 5 grades of bolting with twelve 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. ASTM A Grade B21 is a high tensile alloy steel bolting grade intended for special application such as xstm power plant installations.

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.

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

Several grades of steel are covered. Material which is ordered in the liquid-quenched and tempered condition shall be uniformly reheated from a temperature below the cooling transformation range to the proper austenitizing temperature. Combining values from the two systems may result in nonconformance with the specification. astmm

The values stated in each system are not exact equivalentsl therefore, each system must be used independently of the other.