1、 1 Standard Practice Installation of Stainless Chromium-Nickel Steel and Nickel-Alloy Roll-Bonded and Explosion-Bonded Clad Plate in Air Pollution Control Equipment This NACE International standard represents a consensus of those individual members who have reviewed this document, its scope, and pro
2、visions. Its acceptance does not in any respect preclude anyone, whether he or she has adopted the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not in conformance with this standard. Nothing contained in this NACE International standard is t
3、o be construed as granting any right, by implication or otherwise, to manufacture, sell, or use in connection with any method, apparatus, or product covered by Letters Patent, or as indemnifying or protecting anyone against liability for infringement of Letters Patent. This standard represents minim
4、um requirements and should in no way be interpreted as a restriction on the use of better procedures or materials. Neither is this standard intended to apply in all cases relating to the subject. Unpredictable circumstances may negate the usefulness of this standard in specific instances. NACE Inter
5、national assumes no responsibility for the interpretation or use of this standard by other parties and accepts responsibility for only those official NACE International interpretations issued by NACE International in accordance with its governing procedures and policies which preclude the issuance o
6、f interpretations by individual volunteers. Users of this NACE International standard are responsible for reviewing appropriate health, safety, environmental, and regulatory documents and for determining their applicability in relation to this standard prior to its use. This NACE International stand
7、ard may not necessarily address all potential health and safety problems or environmental hazards associated with the use of materials, equipment, and/or operations detailed or referred to within this standard. Users of this NACE International standard are also responsible for establishing appropria
8、te health, safety, and environmental protection practices, in consultation with appropriate regulatory authorities if necessary, to achieve compliance with any existing applicable regulatory requirements prior to the use of this standard. CAUTIONARY NOTICE: NACE International standards are subject t
9、o periodic review, and may be revised or withdrawn at any time in accordance with NACE technical committee procedures. NACE International requires that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of initial publication. The user is cautioned
10、to obtain the latest edition. Purchasers of NACE International standards may receive current information on all standards and other NACE International publications by contacting the NACE International FirstService Department, 1440 South Creek Drive, Houston, Texas 77084-4906 (telephone +1 281-228-62
11、00). NACE SP0199-2009 (formerly RP0199) Item No. 21087 Revised 2009-06-26 Revised 2004-02-12 Approved 1999-01-16 NACE International 1440 South Creek Dr. Houston, TX 77084-4906 +1 281-228-6200 ISBN 1-57590-075-0 2009, NACE International SP0199-2009 NACE International i _ Foreword The purpose of this
12、standard practice is to provide technical and quality assurance guidelines for the fabrication, welding, and installation of stainless chromium-nickel steel and nickel-alloy roll-bonded and explosion-bonded clad plate in air pollution control equipment. It is intended for use by personnel including
13、architect-engineers, designers, fabricators, and personnel from electric utilities. This standard was originally prepared in 1999 by NACE Task Group T-5F-6, a component of Unit Committee T-5F, “Corrosion Problems Associated with Pollution Control.” It was revised in 2004 and 2009 by Task Group (TG)
14、199, “Stainless Chromium-Nickel Steel and Nickel-Alloy Roll-Bonded and Explosion-Bonded Clad Plate for Air Pollution Control Equipment, Installation: Review of NACE Standard RP0199.” TG 199 is administered by Specific Technology Group (STG) 45, “Pollution Control, Waste Incineration, and Process Was
15、te.” This standard is issued by NACE International under the auspices of STG 45. In NACE standards, the terms shall, must, should, and may are used in accordance with the definitions of these terms in the NACE Publications Style Manual. The terms shall and must are used to state a requirement, and a
16、re considered mandatory. The term should is used to state something good and is recommended, but is not considered mandatory. The term may is used to state something considered optional. _ SP0199-2009 ii NACE International _ NACE International Standard Practice Installation of Stainless Chromium-Nic
17、kel Steel and Nickel-Alloy Roll-Bonded and Explosion-Bonded Clad Plate in Air Pollution Control Equipment Contents 1. General . 1 2. WeldingGeneral . 2 3. Welding Procedure Qualification 9 4. Welder Performance Qualification . 9 5. Weld Quality . 9 6. Inspection . 10 7. Repair of Defective Welds 11
18、References 11 Appendix A: Procedures for Handling Clad Plates and Fabricated Components Made from Clad Plates (Mandatory) 12 Appendix B: Procedures for Attaching Structural Members to Clad Plate (Nonmandatory) 13 Appendix C: Procedures for Cleaning Fabricated Clad Plate (Nonmandatory) . 13 FIGURES F
19、igure 1: Weld Accessible from Both Sides: Alloy-Side Root Pass 3 Figure 2: Weld Accessible from Both Sides: Steel-Side Root Pass . 4 Figure 3: Weld Accessible from Alloy Side Only . 5 Figure 4: Weld Accessible from Both Sides: Plates 13 mm (0.50 in) and Greater . 6 TABLES Table 1: Suggested Dimensio
20、n A1in Figures 1 through 3 7 Table 2: Designations for Alloy Cladding Materials 7 Table 3: Alloy Weld Filler Metals . 8 Table 4: Maximum Allowable Weld Reinforcement and Undercut of Groove Welds 10 _ SP0199-2009 NACE International 1 _ Section 1: General 1.1 This standard provides technical and quali
21、ty assurance guidelines for the fabrication, welding, and installation of stainless chromium-nickel steel and nickel-alloy roll-bonded and explosion-bonded clad plate conforming to ASTM(1)A 2641or A 2652in air pollution control equipment (e.g., flue gas desulfurization FGD absorbers, ducts, and stac
22、ks). It is intended to be the basis for preparation of a specification to be agreed on by contracting parties. 1.2 For the purposes of this standard, the term alloy is used to describe either the stainless chromium-nickel steel or nickel-alloy portion of clad-steel plate or the equivalent solid stai
23、nless chromium-nickel steel or nickel-alloy material. 1.3 It is the responsibility of users of this standard to determine the suitability of the construction materials specified for particular applications. 1.4 This standard is only applicable to materials that conform to the following standards or
24、to comparable material specifications as agreed on by contracting parties. In all cases, the latest revision of the standard shall be used: ASTM A 264, ASTM A 265, AWS(2)A5.1,3AWS A5.4,4AWS A5.9,5AWS A5.11,6AWS A5.14,7AWS A5.17,8AWS A5.18,9AWS A5.20,10AWS A5.22,11AWS A5.34.121.5 Standard terms and c
25、onditions and safety considerations are beyond the scope of this standard. It is assumed that users will establish and incorporate these aspects within the specification in accordance with their individual requirements. 1.6 The following codes and specifications supplement this standard. They may be
26、 useful in the development of the specification for this work. ASME(3)Boiler and Pressure Vessel Code: Section II,13Parts A, B, C, and D; and Section IX14 ASNT(4)SNT-TC-1A15 ASTM specifications for various metals and alloys AWS specifications for testing procedures (AWS B1.10,16AWS B2.117) Applicabl
27、e ISO,(5)European, and regional standards and regulatory documents 1.7 This standard uses fabrication practices that incorporate full-penetration welds. Alternative fabrication practices, such as use of partial-penetration welds covered by batten strips in accordance with NACE Standard RP0292,18are
28、not addressed in this standard. 1.8 New and improved welding techniques as well as new alloys are being developed. References to specific weld designs and techniques in this standard are not intended to preclude the use of newer technology. The use of alternative methods should be mutually agreed on
29、 by all contracting parties. 1.9 For the purposes of this standard, ASME material specifications may be used instead of ASTM material specifications. (1) ASTM International (ASTM), 100 Barr Harbor Dr., West Conshohocken, PA 19248-2959. (2) American Welding Society (AWS), 550 N.W. LeJeune Road, Miami
30、, FL 33126.(3) ASME International (ASME), Three Park Avenue, New York, NY 10016-5990.(4) American Society for Nondestructive Testing (ASNT), 1711 Arlingate Lane, Columbus, OH 43228-0518.(5) International Organization for Standardization (ISO), 1 ch. de la Voie-Creuse, Case postale 56, CH-1211 Geneva
31、 20, Switzerland.SP0199-2009 2 NACE International _ Section 2: WeldingGeneral 2.1 Appendixes 2.1.1 Procedures for handling clad plates and fabricated components made from clad plates are in Appendix A (mandatory). 2.1.2 Procedures for attaching structural members to clad plate are in Appendix B (non
32、mandatory). 2.1.3 Procedures for cleaning fabricated clad plate are in Appendix C (nonmandatory). 2.2 Weld Joint Preparation 2.2.1 Weld joint preparation of clad plate shall be made by machining, plasma-arc cutting, or grinding. 2.2.2 All thermal cuts should be ground back as necessary to remove dro
33、ss. 2.2.3 Care should be taken to ensure that any grinding does not contaminate the weld area and that machined surfaces are clean and free of filings, burrs, and oil. 2.3 Weld Joint Designs 2.3.1 Weld joint designs for various clad plate thicknesses welded with accessibility to one or both sides ar
34、e illustrated in Figures 1 through 4. 2.3.1.1 Suggested Dimension A1in Figures 1 through 3 for various welding processes is provided in Table 1. 2.3.1.2 Alloy designations for the various alloy cladding materials that should be welded with the weld joint designs illustrated in Figures 1 through 4 ar
35、e listed in Table 2. 2.3.1.3 Alloy weld filler metals for welding the various alloy designations of cladding materials are listed in Table 3. 2.3.2 The weld joint designs illustrated in Figures 1 though 4 are not mandatory. The contractor may develop and qualify alternatives for approval by the purc
36、haser. 2.3.3 The numbering of the weld beads in Figures 1 though 4 indicates the order of weld bead placement. This weld bead numbering should not be confused with the alloy designation numbers in Table 2. 2.3.4 Alloy weld filler metal must be used for all weld beads of the weld joint designs shown
37、in Figures 1 through 3. For the weld joint design illustrated in Figure 4, either carbon steel weld filler metalAWS A5.1, AWS A5.17, or AWS A5.18or alloy weld filler metal may be used for the steel-side welds (numbered 1 through 5), but alloy weld filler metal must be used for the alloy-side welds (
38、numbered 6 through 8). SP0199-2009 NACE International 3 Size and number of weld beads approximate. Root pass must be backgouged to sound metal after welding alloy side. Alloy weld filler metal must be used for all weld beads forming the weld joint. Figure 1: Weld Accessible from Both Sides: Alloy-Si
39、de Root Pass Backing plate thickness 4.8 mm (0.19 in) to less than 13 mm (0.50 in) Dimension A1 (See Table 1) Bevel optional prior to welding clad side.Maximum misalignment of alloy clad thickness.Typically 1.6 mm (0.063 in) 4.8 mm (0.19 in) to less than 13 mm (0.50 in) 1 2 3 SP0199-2009 4 NACE Inte
40、rnational Size and number of weld beads approximate. Root pass must be backgouged to sound metal after welding steel side. Alloy weld filler metal must be used for all weld beads forming the weld joint. Figure 2: Weld Accessible from Both Sides: Steel-Side Root Pass Backing plate thickness 4.8 mm (0
41、.19 in) to less than 13 mm (0.50 in) 14.8 mm (0.19 in) to less than 13 mm (0.50 in) Typically 1.6 mm (0.063 in) Typically 75 Maximum misalignment of alloy clad thickness 1.6 mm (0.063 in) root face2 3 4 Dimension A1(See Table 1) SP0199-2009 NACE International 5 Size and number of weld beads approxim
42、ate. Alloy weld filler metal must be used for all weld beads forming the weld joint. Figure 3: Weld Accessible from Alloy Side Only Backing bar thickness 4.8 mm (0.19 in) to less than 13 mm (0.50 in) Dimension A1(See Table 1) Typically 75 Typically 1.6 mm (0.063 in) 4.8 mm (0.19 in) to less than 13
43、mm (0.50 in) 0 to 1.6 mm (0 to 0.063 in) Backing Bar Backing Bar 4 52 31SP0199-2009 6 NACE International Plates 13 mm (0.50 in) and greater Size and number of weld beads approximate. First pass on steel backing side (weld bead 1) must not penetrate alloy cladding materialroot face dimension may be i
44、ncreased if appropriate. Steel side (weld beads 1 through 5) may be welded with either carbon steel or alloy filler metal. Alloy side (weld beads 6 through 8) must be welded with alloy weld filler metal. Figure 4: Weld Accessible from Both Sides: Plates 13 mm (0.50 in) and Greater 10 to 20 Radius 4.
45、8 mm (0.19 in) 1.6 mm (0.063 in)Typically 1.6 mm (0.063 in) 1.6 mm (0.063 in)5 43 21Backgouge Dimension A10.0 to 1.6 mm (0.0 to 0.063 in) 5 43 26781SP0199-2009 NACE International 7 Table 1: Suggested Dimension A1in Figures 1 through 3 Figure 1 SMAW GMAW/GTAW/SAW/FCAW 3.2 to 4.8 mm (0.13 to 0.19 in)1
46、.6 to 4.8 mm (0.063 to 0.19 in) Figure 2(A)SMAW GMAW/GTAW/SAW/FCAW 2.4 to 3.2 mm (0.094 to 0.13 in) 1.6 to 4.8 mm (0.063 to 0.19 in) Figure 3(A)SMAW GMAW/GTAW/SAW/FCAW 4.8 to 6.4 mm (0.19 to 0.25 in) 4.8 to 6.4 mm (0.19 to 0.25 in) (A)For clad thicknesses greater than 1.6 mm (0.063 in), a wider open
47、ing may be appropriate. Table 2: Designations for Alloy Cladding Materials(A) Alloy Designation UNS(B)Number 1 S31726, S31703 2 N08031, N08367, N08926, S31254, S31266, S32654, S34565 3 N06625 4 N10276 5 N06022 6 N06059 7 N062008 N06686 (A)This list of alloys is not intended to be all-inclusive. As n
48、ew alloys are introduced, they may be added by the user. (B)Unified Numbering System for Metals and Alloys (UNS). UNS numbers are listed in Metals & Alloys in the Unified Numbering System, latest edition (Warrendale, PA: SAE International SAE) and West Conshohocken, PA: ASTM International ASTM). SP0199-2009 8 NACE International Table 3: Alloy Weld Filler Metals (A), (B) Alloy Designation(C)1, 2, 3 4, 5 6, 7, 8 SMAW UNS Number (AWS
