of chemical analysis samples shall be from an undilutedweld deposit made in accordance with (c) below. As an al-ternative, the deposit shall be made in accordance with(d) below for material that will be used for corrosion re-sistant overlay cladding. Where the Welding ProcedureSpecification or the welding material specification speci-fies percentage composition limits for analysis, it shallstate that the specified limits apply for either the fillermetal analysis or the undiluted weld deposit analysis orfor in situ cladding deposit analysis in conformance withthe above required certification testing.

(c) The preparation of samples for chemical analysis ofundiluted weld deposits shall comply with the methodgiven in the applicable SFA Specification. Where a welddeposit method is not provided by the SFA Specification,the sample shall be removed from a weld pad, groove, orother test weld made using the welding process that willbe followed when the welding material or combination ofwelding materials being certified is consumed. The meth-ods given in the Appendix of SFA-5.9 shall be used to es-tablish a welding and sampling method for the pad,groove, or other test weld to ensure that the weld depositbeing sampled will be substantially free of base metal di-lution. The weld for A-No. 8 material to be used with theGMAWprocess shall be made using the shielding gas com-position specified in the Welding Procedure Specifica-tions that will be followed when the material isconsumed. Where a chemical analysis is required for awelding material that does not have a Mechanical Proper-ties Test requirement, a chemical analysis test couponshall be prepared as required by WD-2431.1(c), exceptthat heat treatment of the coupon is not required andthe we l d coupon th i c kne s s r equ i r emen t s o fWD-2431.1(c) do not apply.

(d) The alternative method provided in (b) above forthe preparation of samples for chemical analysis of weld-ing material to be used for corrosion-resistant overlaycladding shall require a test weld made in accordancewith the essential variables of the Welding ProcedureSpecification that will be followed when the welding ma-terial is consumed. The test weld shall be made in confor-mance with the requirements of Section IX, QW-214. Theremoval of chemical analysis samples shall conform withTable QW-453 for the minimum thickness for which theWelding Procedure Specification is qualified.

WD-2432.2 Requirements for Chemical Analysis.The chemical elements to be determined, the compositionrequirements of the weld metal, and the recording of re-sults of the chemical analysis shall be in accordance withthe following:

(a) All welding material shall be analyzed for the ele-ments listed in Table WD-2432.2-1 and for other ele-ments speci f ied either in the welding materialspecification referenced by the Welding Procedure Speci-fication or in the Welding Procedure Specification.

(b) The chemical composition of the weld metal or fillermetal shall conform to the welding material specificationfor elements having specified percentage compositionlimits. Where the Welding Procedure Specification con-tains a modification of the composition limits of SFA orother referenced welding material specifications, or pro-vides limits for additional elements, these compositionlimits of the Welding Procedure Specification shall applyfor acceptability.(c) The results of the chemical analysis shall be re-

ported in accordance with NCA-3862.1. Elements listedin Table WD-2432.2-1 but not specified in the weldingmaterial specification shall be reported for informationonly.

WD-2433 Delta Ferrite Determination

A determination of delta ferrite shall be performed onA-No. 8 weld material (Section IX, Table QW-442) backingfiller metal (consumable inserts); bare electrode, rod, orwire filler metal; or weld metal, except that delta ferritedeterminations are not required for SFA-5.4, Type 16-8-2, or A-No. 8 weld filler metal to be used for weld metalcladding.

WD-2433.1 Method. Delta ferrite determinations ofwelding material, including consumable insert material,shall be made using a magnetic measuring instrumentand weld deposits made in accordance with (b) below. Al-ternatively, the delta ferrite determinations for welding

Table WD-2432.1-1Sampling of Welding Materials for Chemical

Analysis

GTAW/PAW GMAWAll OtherProcesses

A‐No. 8 filler metal Filler metal orweld deposit

Weld deposit Weld deposit

All other filler metal Filler metal orweld deposit

Filler metalor welddeposit

Weld deposit

Table WD-2432.2-1Welding Material Chemical Analysis

Materials Elements

Carbon and low alloymaterials

C, Cr, Mo, Ni, Mn, Si, P, S, V, Cu

Chromium and Cr‐Nistainless material

C, Cr, Mo, Ni, Mn, Si, P, S, V, Cb + Ta, Ti, Cu

Nickel and Ni‐alloymaterials

C, Cr, Mo, Ni, Mn, Si, S, Cb + Ta, Cu, Fe, Co

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ASME BPVC.III.3-2017Record 18-91 Page 1 of 1