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SPC-PT-24 - studs, bolts, nuts

 

ISSUED FOR

☐ IN HOUSE REVIEW

☒ CLIENT APPROVAL

☐ CONSTRUCTION

DOCUMENT TITLE SHEET

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☒ ENTIRE DOCUMENT

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☐ REVISED SHEETS ONLY

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THIS SHEET IS A RECORD OF EACH ISSUE OR REVISION TO THE SUBJECT DOCUMENT EACH TIME THE DOCUMENT IS CHANGED ONLY THE NEW OR REVISED SHEETS NEED TO BE ISSUED.

THE EXACT SHEETS CHANGED AND THE NATURE OF THE CHANGE SHOULD BE NOTED UNDER REMARKS THESE REMARKS ARE NOT A PART OF THE DOCUMENT THE REVISED SHEETS BECOME PART OF THE ORIGINAL DOCUMENT AND SHALL BE COMPLIED WITH IN THE A ENTIRETY.

 
 

Designed for:

☐ Internal consideration

☒ Approved by the client

☐ Construction

This sheet records all new or changed versions of the document on the topic. In case of changes, only new pages should be submitted.

The Notes column should indicate the sheets that have been changed and the nature of the changes. These notes are not part of the original document and should be consistent with its purpose,

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REY

Ed.

DATE

Date

By

Resolution

CK

Prov.

APPROVALS

Approved

REMARKS

Notes

 

SECTION

Spanish

PROJECT

Leader.

CLIENT

Client

  1 87-08-14 PGP  

ISSUED FOR

PRELIMINARY FINAL

DOCUMENTATION - PART 2

RELEASED FOR PRELIMINARY FINAL DRAFT DOCUMENTATION - PART 2

  2 87/10/26 FBM  

CLIENT APPROVAL

CUSTOMER APPROVAL

 
 

Project, Client, Location

ASTRAKHAN II

ACID GAS COMPLEX

V/O MACHINE IMPORT

ASTRAKHAN, USSR

PROJECT, CLIENT, LOCATION

ASTRAKHAN II

SOUR GAS COMPLEX

V/O MACHINOIMPORT

ASTRAKHAN USSR

Document Title TECHNICAL REQUIREMENTS

STUDS, BOLTS AND NUTS

DOCUMENT TITLE SPECIFICATION

STUD, BOLTS AND NUTS

LAFARGE MINES LAVALIN

Lafarge Coppée Lavalin

SHEET

1 of 5 Pyс

1 of 5 Eng

JOB NUMBER

Job No.

49173

Doc DOCUMENT NO.

SPC-PT-24

REV RED

2

CONTENT

1.0 VOLUME

2.0 NORMS AND STANDARDS

3.0 GENERAL PART

4.0 CONSTRUCTION MATERIALS

5.0 BOLT LENGTHS AND THREADS

6.0 LABELING AND PRESERVATION

7.0 ACCEPTANCE AND DOCUMENTATION

AST, 6

PT-24,1

871022

Lavalin

SHEET

2 - 6

JOB NUMBER

Job No.

49173

Doc DOCUMENT NO.

SPC-PT-24

REV RED

2

1.0 VOLUME

1.1 These specifications supplement the abbreviated descriptions contained in the material classification, requisitions and purchase orders relating to bolts and nuts. Any deviations from these requirements must be approved in advance by the Buyer.
1.2 The codes and standards referenced in this document shall be the latest revision at the time of receipt of the purchase order and shall accordingly become part of these specifications.
1.3 In case of any discrepancy or inconsistency between these technical requirements and the relevant norms and standards, the more stringent version shall prevail.

2.0 STANDARDS AND REGULATIONS

2.1

American National Standards Institute /ANSI/

- ANSI B16.5 /Steel Pipe Flanges and Flanged Fittings/

2.2 American Society for Testing and Materials (ASTM)
  - ASTM A320 Alloy steel bolt material for low temperature operation
  - ASTM A194 Carbon alloy steel nuts for bolts operating under high pressure and temperature
2.3 American Petroleum Institute /API/
  - API SPEC 6A Wellhead and fountain equipment
2.4 National Association of Corrosion Engineers /NACE/
  - NACE MR-01-75

Requirements for the material:

Metallic materials for oil field equipment resistant to sulfide cracking

AST, 6

PT-24,2

871022

Lavalin

SHEET

3 - 6

JOB NUMBER

Job No.

49173

Doc DOCUMENT NO.

SPC-PT-24

REV RED

2

3.0 GENERAL PART

This section generally covers studs, nuts and washers. Bolted connections of other designs shall comply with this specification as applicable.

4.0 CONSTRUCTION MATERIAL

The material of the structures must correspond to the name of the item. Substitution of materials without the prior permission of the Buyer is prohibited. All materials must be suitable for work at low temperatures /-36°C/.
4.1 Unless otherwise specified, in addition to the item name, bolts, nuts and washers shall be supplied as follows:
  4.1.1 ANSI Flange Studs and Nuts  
  A320 L7M Studs
  • Modified to a maximum hardness of 22 HRC
  Nuts according to A194-GR2HM
  • Modified to a maximum hardness of 22 HRC
  Materials and testing shall comply with the relevant requirements of NACE MR-01-75, ASTM A320 and A194, as applicable.
  4.1.2

Studs and nuts for API SPEC 6A-BX flanged service /NACE MR-01-75 Class I Temperature Class M and Class H Liquid Service Bolts and Nuts/.

The material must meet the requirements set out in paragraph 4.1.1.

    In addition, studs and nuts shall comply with the requirements of API SPEC 6A, Section XC, Table XC1.
    Studs and nuts shall meet the inspection requirements of API SPEC 6A.

AST, 6

PT-24,3

871022

Lavalin

SHEET

4 - 6

JOB NUMBER

Job No.

49173

Doc DOCUMENT NO.

SPC-PT-24

REV RED

2

5.0 BOLT LENGTHS AND THREADS

5.1 The diameter and length of the studs shall correspond to the metric dimensions of ANSI B16.5 Supplement H and the flanges of that standard. The listed lengths shall be dimension "L", measured from thread to thread, excluding chamfers.
5.2 Bolt lengths shall comply with Appendix C of SPEC API 6A flange classification.
5.3 All threads for use with ANSI class flanges shall be ISO/R-261 metric normal pitch only or comply with NORM AFNORE 03-013.
5.4 All threads for API SPEC 6A flanges.

6.0 LABELING AND PRESERVATION

6.1 Marking
  Marking shall comply with the relevant requirements of ASTM A320, A194 and API SPEC 6A, as applicable.
6.2 Prevention  
  6.2.1 Protection from mechanical damage
    All bolts and nuts must be adequately protected during loading, unloading and transportation.
  6.2.2 Corrosion protection
    All bolts, nuts and washers must be protected from corrosion during shipping and subsequent outdoor storage for at least 6 months with Rust-Ban or similar coating that is easily removed with a petroleum solvent such as Varsol.

AST, 6

PT-24,4

871022

Lavalin

SHEET

5 - 6

JOB NUMBER

Job No.

49173

Doc DOCUMENT NO.

SPC-PT-24

REV RED

2

7.0 ACCEPTANCE AND DOCUMENTATION

7.1 Acceptance
  Acceptance must be made by the Buyer's representative.
  Acceptance criteria shall be based on these technical requirements and relevant standards.
7.2 Passport for bolts and nuts
  The seller must comply with the requirements of the technical passport.

AST, 6

PT-24,5

871022

Lavalin

SHEET

6 - 6

JOB NUMBER

Job No.

49173

Doc DOCUMENT NO.

SPC-PT-24

REV RED

2

Specifications (TU)

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