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4 15 September 2004Dammam, Saudi Arabia

API 510 PREPARATORYPoints To Recall Day 8

1. Procedure qualifications give suitability of weld for requiredmechanical properties (i.e., strength, ductility), whileperformance qualifications show ability of the welder to makesound weld.

2. ension test gives tensil value, while bend test shows ductility andsoundness. !adiography also indicates soundness.

hus, Proc. "ual.# ension test $ %end test Perf. "ual.# %end test or !adiography

&. ensile test for procedure qualification is passed if failure is in#

a. 'eld metal at strength %ase metal *+ * orb. %ase metal at strength - of base metal *+ *.

/. %end test crack shall not e0ceed 1 3 in any direction.!adiography criteria are stricter than radiography for 4ob.

-. P5numbers represent parent metal classification of similarcomposition and properties, i.e., similar strength and ductility.

65numbers give similar usability aspects of filler material.

75numbers give similar chem. comp. 8n 97s welded3 condition.

:. ;ssential variables (;

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. P"! document gives data used in P"! test and test results, andcannot be revised.

1@. 'P* gives parameters to be used in production 4ob, and must bewithin ranges qualified by the P"! test.

11. 'P* may be revised within the ;:. hickness includes weldreinforcement. %ut not backing.

Penetrameter should be placed on *ource side.6ilm side (with letter 6) is permitted if there isno access to place 8"8 on source side.

7t least one penetrameter image shall appearon each film ( with 2 hole for Hole5type orCesignated wire for wire type)

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1-. 6or P (7rt.:)#

a. Dontrol of Dontaminants is required for P on nickel alloys,austentic *.*. and titanium.

b. *tandard procedures(penetrant time,Ceveloping time etc.)are applicable for temp. range 1@ oD to -2 oD. =ewprocedure shall be qualified for outside this range.

c. Penetrants are Dolor (visible) type and 6luorescent type.;ach of these has & types of penetrants#'ater 'ashable, Post ;mulsifying, *olvent !emovable.P; type may be I Eipopholic or Hydropholic.

d. Penetration time, developing time, able 5:>2

e. 6inal interpretation within 1@ to :@ minutes.

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