ASME BOILER PRESSURE VESSEL CODE AN INTERNATIONAL

ASME BOILER & PRESSURE VESSEL CODE AN INTERNATIONAL STANDARD SECTION IX QUALIFICATION STANDARD FOR WELDING AND BRAZING PROCEDURES, WELDERS, BRAZERS, AND WELDING AND BRAZING OPERATORS. 2004 EDITION, JULY 1, 2004

ASME IX, 2004 EDITION QW-100 GENERAL Section IX of the ASME Boiler and Pressure Vessel Code relates to the qualification of welders, welding operators, brazers, and brazing operators and procedures that they employ in welding and brazing according to ASME BPVC and the ASME B 31 Code for Pressure Piping.

ASME IX, 2004 EDITION QW-101, Scope Introduction Sec. IX divided into two parts : Welding & Brazing. Each part divided into four articles. These articles deal with the following : Ø General requirements (Art. I Welding (W) & XI Brazing(B)) Ø Procedure qual. (Art. II (W) & XII (B)) Ø Performance qual. (Art. III (W) & XIII (B)) Ø Data (Art. IV (W) & XIV (B)) Ø Standard Welding Procedures (Art. V)

ASME IX, 2004 EDITION • QW-100. 1 The Purpose for qualification of a WPS • QW-100. 1 WPS QW-200. 1(a) ; (b); (c); (d) • QW-100. 1 PQR QW-200. 2 (a); (b); (c); (d); (e)

ASME IX, 2004 EDITION QW-100. 2 In performance qualification QW-300. 2 The purpose of this req. is to ensure that the manufacturer or contractor has determined that his welders and welding operator using his procedures are capable of developing the minimum requirements specified for acceptable weldment. This responsibility can not be delegated to another organization. QW-301. 1 Intent of Tests. The performance qualification test are intended to determine the ability of welders and welding operators to make sound weld

ASME IX, 2004 EDITION QW-102, Term and Definition QW/QB – 492 – As welded; Backing Gas; Build-up of base metal / restoration of base metal thickness; Buttering; DCEN; Dwell; Inter-pass Temperature; Pass; Temper Bead Welding; Test Coupon : Test Specimen; Weldment; Weld metal QW-103, Responsibility QW-103. 1, Welding QW-103. 2, Records QW-100. 3 Requirement ASME IX, 1962

PRODUCTS WPQT WPS PQR HAVE BEEN RUN PQR RUNNING PQR TEST WPQT

ASME IX, 2004 EDITION Scope of Work Inspector for WPQ (Running PQR) 1. Review Propose WPS 2. Witness Qualification Test 3. Witness , Verification or Review result of The tests 4. Review PQR 5. Review WPS

ASME IX, 2004 EDITION Scope of Work Inspector for WPQ (Without Running PQR) 1. Review PQR 2. Review WPS

ASME IX, 2004 EDITION Review Propose WPS • Contents : QW-200. 1 (b) See app. B • Attention to The Essential Variable (QW 250) especially for metals requirement notchtoughness test QW-200. 3 P-No 11 • Review Base Metal Certificate for carbon equivalent (QW-403. 26), ASME IIA Spec, Table QW/QB-422 • Check Filler Metal Certificate for ASME II. C Spec.

ASME IX, 2004 EDITION Witness Qualification Test • Before welding start : check all materials (base metal and Filler metal) ; equipments to be meet with reviewed PWPS and welder certificate (if any). • QW-211 Base Metal • QW-212 Type and Dimensions of Groove Welds • Welding : check actual A, V • QW-250 Verification Welding Variables • QW-203 Limits of Qualified Position for Procedures • QW-290 TEMPER BEAD WELDING

ASME IX, 2004 EDITION Witness , Verification or Review result of The tests QW-202, Type of Test Req • QW – 144 VI • QW-202. 1 Mechanical Tests (DT) – QW 451& QW 463, QW 151, 152, 153, QW 161, 162, 163, QW 171 or 172, QW 181, 182, 183, 184 • QW-202. 2 Groove and Fillet Welds • QW-202. 3 Weld Repair and Buildup • QW-202. 4 Dissimilar Base Metal Thicknesses • QW-214 Corrosion-Resistant Weld Metal Overlay • QW-216 Hard_Facing Weld Metal Overlay • QW-217 Joining of Composite (Clad Metals) • QW-218 Applied Linings • QW 191 – RT

ASME IX, 2004 EDITION Review PQR • QW 200. 2 (a) PQR • QW 200. 2 (b) Contents • QW 200. 2 (c) Changes to The PQR • QW 200. 2 (d) Format , see QW 483 (app. B) • QW 200. 2 (e) Availability of the PQR

ASME IX, 2004 EDITION Review WPS • QW-200. 1 (c) Changes to the WPS • QW-200. 1 (e) Avaibility of the WPS • QW-200. 2 (f) Multiple WPSs With One PQR / Multiple PQRs With One WPS • QW-200. 4 Combination of Welding Procedures • QW-424 Base Metals Used for Procedure Qualifications • QW-451 Procedure Qualification Thickness Limits and Test Specimens • QW-201 Manufacturer’s or Contractor’s Responsibility • QW-103 Qualification made in accordance with the requirements of the 1962 edition

ASME IX, 2004 EDITION • • • Scope of Work Inspector for Welding Performance Qualification. Witness Qualification Tests Witness , Verification or Review result of the tests Qualified Welder Review WPS to consideration With List of Welder which will be test Review Welder Certificate

ASME IX, 2004 EDITION QW-300. 1 A welder or welding opr. May be qualified by : • Radiography of test coupon • Radiography of his initial production welding or • By bend test taken from test coupon except as stated in QW-304 and QW 305

ASME IX, 2004 EDITION • • Review WPS to consideration With List of Welder which will be test Attention to The Essential Variable (QW 350 & QW 360) and compare to WPS (QW-301. 2) Compare list of welder with identification of welders and welding operators. Check Base Metal Certificate for carbon equivalent Check Filler Metal Certificate for ASME II. C Spec

ASME IX, 2004 EDITION Witness Qualification Test • Before start welding : check all materials, equipments, position, personnel shall comply with reviewed WPS and list of welder • QW-301. 2 Qualification Tests – Changes beyond which requalification is required are given in QW-350 for welder dan in QW-360 for welding operators. – Allowable visual, mechanical and RT are described in QW-304 and QW-305 – The welder or welding operator who prepares the WPS qualification test coupons meeting the requirements of QW-200 is also qualified within the limits of the performance qualifications, listed in QW-304 for welder and QW-305 for welding operators. He is qualified only within the limits for position specified in QW-303 – The performance test may be terminated at any stage of the testing procedure, whenever it becomes apparent or welding operator does not have the required skill to produce satisfactory results.

ASME IX, 2004 EDITION • • • QW-310. 1 Test Coupons QW-310. 2 Welding Groove With Backing QW-310. 3 Welding Groove Without Backing QW-304 Welders, with limitation QW-350 & QW 416 QW-305 Welding Operators with limitation QW-360 QW-306 Combination of Welding Processes (det) QW-381 Corrosion Resistant Weld Metal Overlay QW-382 Hard-Facing Weld Metal Overlay (Wear Resistant) QW-383 Joining of Clad Materials and Applied Linings

ASME IX, 2004 EDITION • • • Witness , Verification or Review result of The tests QW-302 Type of Test Required QW-301. 4 Record of Tests QW-304. 1, QW-304. 2 QW-305. 1, QW-305. 2 If testing found reject, QW-321 Retest

ASME IX, 2004 EDITION Welder Qualified • QW-301. 3 Identification of Welders and Welding Operators • QW-303 Limits of Qualified Positions and Diameters (See QW-461) • QW-423 Alternate Base Materials for Welder Qualification • QW-452 Performance Qualification Thickness Limits and Test Specimens • QW-322 Expiration and Renewal of Qualification

ASME IX, 2004 EDITION Review Welder Certificate • Review all item Welder Qualified and contractor employee QW 300. 2 ; QW-300. 3 • Compare with WPS will be used production welding (QW-304 ; QW -305) within limits of the essential variables of QW-350 and QW-360

ASME IX, 2004 EDITION STANDARD WELDING PROCEDURE SPECIFICATIONS (SWPSs) • QW-500 General • QW-510 Adoption of SWPSs • QW-511 Use of Demonstrated SWPSs • QW-520 Use SWPSs Without Discrete Demonstration • QW-530 Forms • QW-540 Production Use of SWPSs