Hardness Test Procedure [PDF]

Zitiervorschau

Main Contractor :

Client :

Contractor :

NDT Sub Contractor

PYRAMID E&C

Date : 25 July 2015

Doc. No. 903-10070-HRD001

Rev. A

HARDNESS TEST PROCEDURE Project

:

Erection of Crude Fired Heater

Location

:

Fujairah, UAE

Client

:

Ecomar Energy Solutions FZC

Reference

:

6/903/10070 Contract Agreement

RSC Job No

:

RSC-J-564

Submitted For: Review/Approval Information Final

1

Main Contractor :

Client :

Contractor :

NDT Sub Contractor

PYRAMID E&C

Date : 25 July 2015

A

Rev.

Doc. No. 903-10070-HRD001

30 July 2015

Hardness Test Procedure

Date

Description

Y V Swamy Level III Prepared BY Sievert

Rev. A

Reviewed By Contractor/EP C

Approved By Client

CONTENTS

1.

SCOPE

2.

EQUIPMENT

3.

REFERENCE DOCUMENTS

4.

METHOD

5.

HARDNESS REQUIREMENT AND ACCEPTANCE

6.

RETEST

7.

REPORT / DOCUMENTATION

2

Main Contractor :

Client :

Contractor :

NDT Sub Contractor

PYRAMID E&C

Date : 25 July 2015

1

Doc. No. 903-10070-HRD001

Rev. A

SCOPE This procedure applies to the requirement for on job hardness testing to be performed at shop floor for pressure piping coils welds of carbon and low alloy steels.

2

EQUIPMENT

2.1

Instrument shall be portable hardness tester (integrated hardness tester).

2.2

Persons engaged in testing shall be familiar with the equipment operation and shall have relevant experience in hardness testing with mentioned equipment.

3

REFERENCE DOCUMENTS ASTM A-450

: Standard Specification for General Requirement for Carbon and Low Alloy Steel Tubes.

ASTM E 10

: Standard Test Method for Brinell hardness of Metallic Materials.

ASME B 31.3

: ASME Code for Process Piping

4

METHOD

4.1

Instrument shall be verified on ASTM E10 standard calibrated test block having known hardness. Traceability of the test block shall be maintained.

4.2

Use of equipment (hardness tester) shall be as per manufacturer’s instruction manual. Before performing hardness check, the appropriate mode of testing shall be set in tester.

4.3

The surface to be examined shall be smooth, free from dirt, grease, oil & scale. Surface shall be prepared by light grinding or solvent cleaning (if required). The

3

Main Contractor :

Client :

Contractor :

NDT Sub Contractor

PYRAMID E&C

Date : 25 July Doc. No. 903-10070-HRDRev. A 2015 001 welds shall be flush ground on location by light grinding (applicable only for area to be examined). 4.4

Hardness test shall be performed after PWHT wherever applicable.

4.5

The hardness check shall be performed at welds, heat affected zone (HAZ) and adjacent base material to welds. Separation distance between reading shall be specified as per ASTM E10 requirements

4.6

The appeared hardness value after testing shall be reported and same procedure is to be followed repeatedly to take all required reading as per the extent mentioned below. Brinell hardness testing machine verification shall be demonstrated according to the ASTM E10 requirements

4.7

Indenter & calibration block certificate shall be verified by inspection authority prior to proceeding for examination.

5

HARDNESS REQUIREMENT AND ACCEPTANCE Hardness in base metals, weld and heat affected zone as per ASTM E10 shall not exceed the following: For P No. 9 For P No. 11

6

241 BHN 250 BHN

RETEST Whenever any spot / seam fail to meet above requirement / ITP requirement, two additional spots as required in 4.4 above shall be tested, further more if any spot fail to meet requirements in additional test, the non-conformance report (NCR) after consulting with client shall be raised against the non-conforming items and further action shall be taken suitable heat treatment or weld removal etc… as per the resolution of NCR.

7

REPORT / DOCUMENTATION Report the results in Hardness Test Report.

4

Main Contractor :

Client :

Contractor :

NDT Sub Contractor

PYRAMID E&C

Date : 25 July 2015

Doc. No. 903-10070-HRD001

Rev. A

5