1、 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. OCTOBER 2016 Page 1 of 7 NAVISTAR, INC. Material, Parts, and Process Specificatio
2、ns (MPAPS) NUMBER: MPAPS A-6 Part III Former Designation: CEMS A-6 Part III TITLE: Low Carbon Steel, Flat Rolled and Structural Shapes - Part III. ORGANIC COATED SHEET AND STRIP CURRENT REV No.: 1610 DATE: Oct. 2016 WRITTEN/EDITED BY: W. Cook APPROVED BY: R. Goluch SUPERSEDES: 1512 Dec 2015 PRINTED
3、COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specification may involve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and heal
4、th practices and to determine the applicability of regulatory limits prior to use. Part III. ORGANIC COATED SHEET AND STRIP 1.0 APPLICATION This specification applies to organic coated steel sheet and strip products, and describes a system for specifying these products on engineering drawings. Organ
5、ic coatings are designated by grade for each type of coating. 2.0 SCOPE Part III of this specification covers Navistars classification system, dry film performance requirements and top-coat- primer compatibility performance requirements for corrosion resistant primer, weldable primer, wash coat and
6、combine topcoat and primer coating applied by continuous coil coating processes to steel sheet and strip products 2.1 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the MPAPS B-50 specifica
7、tion. 3.0 REFERENCE DOCUMENTS Unless otherwise specified, the latest issue of all referenced standards shall apply. The following Specifications, Standards, and Regulations are referenced in this specification. Quality System Standard ISO 9001 or TS-16949 ASTM D610 CFR Title 29, Part 1910 ASTM B117
8、NAVISTAR Supplier Packing and Shipping Standard D-13 ASTM D3359 NAVISTAR Engineering Design Std. A-16 ASTM D3363 NAVISTAR MPAPS B-50 ASTM D3003 NAVISTAR MPAPS GT- Paint SAE J810 NAVISTAR MPAPS A-6, Part I SAE J2334 NAVISTAR MPAPS A-6, Part II ASTM D522 NAVISTAR MPAPS G-9009 ASTM D523 NAVISTAR MPAPS
9、P-9516 NUMBER: MPAPS A-6 Pt III TITLE: Part III. ORGANIC COATED SHEET AND STRIP REVISION: 1610 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Na
10、vistar, Inc. OCTOBER 2016 Page 2 of 7 4.0 REQUIREMENTS 4.1 Classification Organic coatings are classified by Grade. Organic coatings will be identified according to Grades as shown in Table I for all Navistar products. TABLE I Grade Coating Application 1PPW 2PPW 1PPX 2PPX 1P Pass 25-double rubs; Pas
11、s 25-double rubs; Pass 25-double rubs; Pass MPAPS GT- Paint Method 14A6 Toughness Pass Pass Pass Pass ASTM D522 Method B, 9.5mm Gloss NA NA NA Per Color Specification ASTM D523 Pressure marking resistance Blocking: G10 Mottling G10 Blocking: G10 Mottling G10 NA Blocking: G10 Mottling G10 ASTM D3003
12、Neutral Salt Spray: Scribe Creep3 500 hrs Steel: 6mm MC: NA 250 hrs Steel: 6mm MC: NA 100 hr Gr 74 500 hrs Steel: 6mm MC: NA ASTM B-117 GT-Paint 7D ASTM D6104 Cyclic Corrosion: Scribe Creep3 60 Cycles Steel 6mm MC: 3mm 30 Cycles Steel 6mm MC: 3mm NA 60 Cycles Steel 6mm MC: 3mm SAE J 2334 GT-Paint 7D
13、 Humidity 500 hrs Pass 250 hrs Pass 100 hrs Pass 500 hrs Pass GT-Paint 7E Adhesion % 3B 3B 3B 3B ASTM D3359 Method B Other NA NA NA MPAPS G-9009 Class IB As indicated Topcoat Compatibility Per Table 2 Per Table 2 NA Per Table 25 1. Film Coating weight: Typical- not a requirement 2. The minimum value
14、s offered are typical for epoxy based primer. Dry film thickness (DFT) needs to be sufficient to allow the particular primer to meet required performance requirements. DFT is a KCC once established for a particular primer/coating process. 3. Salt Spray is not required when the base material is not g
15、alvanized except for evaluating general corrosion resistance of wash coats (backer coats) 4. Per ASTM D610; Applies only to wash coat testing, evaluate for red corrosion product (steel) or white corrosion product (galvanized steel). 5. Except w/ suppliers topcoat. 6. Exceptions when used as a tool f
16、or evaluating paint cure efficacy during production: a. Samples must not be “aged” prior to testing; b. Very light color transfer to the gauze is acceptable, but, the rubbed area of panel must not show any change in dry film thickness, nor smearing, scaring or roughening of the paint that is visible
17、 or detectable by touch. NUMBER: MPAPS A-6 Pt III TITLE: Part III. ORGANIC COATED SHEET AND STRIP REVISION: 1610 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent lia
18、bility. 2016 by Navistar, Inc. OCTOBER 2016 Page 5 of 7 Table 2. TopCoat- Primer Compatibility Testing Methods and Requirements Test Corrosion Resistant Primer (CRP) Weldable Primer (WCRP) Top Coat (TC) + Primer Test Methods Salt Spray* 500hrs 250 hrs 500 hrs ASTM B117 Scribe Creep Steel, 6mm Steel,
19、 6mm Steel, 6mm GT- Paint- 7D Adhesion *% 3B 3B 3B ASTM D3359 Method B Cyclic Corrosion 60 Cycles 30 Cycles 60 Cycles SAE J2334 Scribe Creep Steel 6mm MC. 3mm Steel, 6mm MC. 3mm Steel 6mm MC. 3mm GT- Paint- 7D Adhesion* % 3B 3B 3B ASTM D3359 Method B Humidity 3B, Pass* 3B; Pass* 3B; Pass* GT-Paint M
20、ethod 7E Adhesion (As Painted) 3B 3B 3B ASTM D3359 Method B Accelerated Adhesion (DI water immersion 3B 3B 3B GT- Paint Method 5C Test panel preparation per MPAPS GT-Paint, paragraph 4.2, Method A. Use Grade 17HS paint and cure cycle for bus applications and grade 19HS paint and cure cycle for truck
21、 applications. * Do not use for steels with inorganic metal coatings (MC). * At both inter-coat and primer-steel interfaces. * No blistering immediately after removal. 5.0 QUALITY The supplier should be able to provide certification that product supplied to this specification meets the applicable re
22、quirements defined in this specification. The supplier should be capable of providing statistical evidence that the material supplied has been manufactured within process control limits established by the supplier for this product and that the process is capable of meeting all requirements of this s
23、pecification. 5.1 Surface Condition Coated sheet and strip products will be free from injurious defects such as blisters and bare spots detrimental to fabrication and/or function of the part. The material identified by an E suffix (exposed parts) shall be free from such surface defects as might adve
24、rsely affect the ability to obtain a uniform painted appearance satisfactory for the intended purpose. In all cases the base metal shall conform to surface condition requirements of MPAPS A-6 Part I. If the material is also metallic-coated, the material shall also meet the surface condition requirem
25、ents of MPAPS A-6 Part II. Unacceptable surface defects in metal-coated base material include, but are not limited to, runs, sags scratches, zinc/aluminum stringers, coarse coating or zinc/aluminum ridges, zinc/aluminum flakes. Unacceptable base metal surface defects include rolled-in scale, skin la
26、minations, coil breaks, edge breaks, chatter marks, fluting, friction digs, holes, slivers, coarse grain (orange peel), pinchers, ragged edges, rolled in dirt, or stretcher strain and other defects defined within SAE J810. 6.0 SOURCE APPROVAL AND QUALITY CONTROL 6.1 Supplier Requirements All supplie
27、rs to NAVISTAR are required to be registered to ISO 9001 Quality System Requirements. NAVISTAR will also accept TS-16949 registration as long as the supplier can also fulfill all AIAG PPAP (Production Part Approval Process) documentation and approval requirements. Suppliers must NUMBER: MPAPS A-6 Pt
28、 III TITLE: Part III. ORGANIC COATED SHEET AND STRIP REVISION: 1610 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. OCTOBER 2016 P
29、age 6 of 7 maintain their certification with an accredited registrar and must furnish copies of registration certificates to their Corporate Buyer upon request. 6.2 Approval Parts supplied against contracts or purchase orders citing this specification shall be equivalent in all respects to those sam
30、ples which were approved by the purchaser. No changes in formulation or processing practices are permitted without approval. In the event that changes in material, properties, processing practices, construction, color, or labeling of the product are required, the supplier shall notify NAVISTAR Mater
31、ials Engineering and Purchasing and Supplier Development of the proposed change(s). Test data indicating conformance to all requirements of this specification, test samples, and new or amended or updated Material Safety Data Sheet(s) (MSDS), in accordance with CFR Title 29, Part 1910 shall be submit
32、ted with the request for change. 6.3 Process Control The supplier shall either, perform and report results of tests on specific lots of parts produced using ISO 9001 or TS-16949 guidelines, or provide statistical evidence of the lot having been produced in a state of statistical control and with a p
33、rocess capable of providing all required properties. The part supplier and the quality control manager of the using NAVISTAR plant may determine testing and reporting requirements on specific products. 7.0 SHIPPING AND HANDLING Shipping and identification shall be in accordance with NAVISTAR Supplie
34、r Packing and Shipping Standard D-13. Parts shall be packaged so as to avoid any damage in shipment detrimental to the appearance of the part. 8.0 DESIGNATION ON DRAWINGS 8.1 Designation on Drawings Material designations will consist of the steel grade (per MPAPS A-6, Part I), the metallic coating d
35、esignation (per MPAPS A-6, Part II) as applicable, and organic coating Grade designation as per this specification. Any other special requirements necessary to ensure Engineering performance will be included on the Engineering drawing. Examples: Steel, Grade 1C, Grade 1PPX per MPAPS A-6, Part III St
36、eel, Grade 1GALV, 60G60GU, Grade 1PPW per MPAPS A-6, Part III Steel, Grade 6GALV, Type 230SS, 60G60GE, Grade 2PPW, MPAPS A-6, Part III Steel, Grade 1GALV, 60A60AE, Grade 1PPX per MPAPS A-6, Part III Steel, Grade 1GALV, 60G60GE, Grade 1P&TC, MPAPS A-6, Part III Steel, Grade 1GALV, 60G60GE, Grade 1PPX
37、 per MPAPS A-6, Part III Steel, Grade 6GALV, Type 340X, 60G60GE, Grade 2P&TC per MPAPS A-6, Part III 8.2 Designation on Purchase Orders It is the responsibility of the Quality Control Manager and/or Plant Planning department to add to purchase orders any special requirements which may be necessary f
38、or proper fabrication of the final part. This includes specifying the sheet quality, raw material sizes, and any mill treatments after coating the sheet such as oiling. For manufacturing control, a specific type or commercial brand name of organic coating may be specified on the purchase order as ne
39、cessary. NUMBER: MPAPS A-6 Pt III TITLE: Part III. ORGANIC COATED SHEET AND STRIP REVISION: 1610 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by
40、Navistar, Inc. OCTOBER 2016 Page 7 of 7 Examples: (1) Steel, Grade 1C, CS Type B, Grade 1PPX per MPAPS A-6, Part III 0.036 x 38 x coil, CR, cut edge, unexposed (2) Steel, Grade 1GALV, DS Type B, 60G60GU, Grade 1PPW per MPAPS A-6, Part III 0.8mm x 1000 mm x coil, HR, mill edge, unexposed (3) Steel, G
41、rade 1GALV, DS Type B, 60A60AE, Grade 1PPX per MPAPS A-6, Part III 1.0 mm x 216 mm x 2440 mm, slit edge, exposed (4) Steel, Grade 1GALV, 60G60GE, Grade 1P&TC, MPAPS A-6, Part III 1.4 mm x 1524 x 2048, CS Type B, extra smooth. slit edge, exposed (5) Steel, Grade 1GALV, CS Type B, 60G60GE, extra smoot
42、h, Grade 1PPX, MPAPS A-6, Part III 1.4 mm x 892 mm x coil, slit edge, exposed, side 1= Valspar 803X410, 0.4 mil 0.1 mil primer, side 2= Valspar 115-C-329, 0.3 mil 0.1 mil, clear alkyd backer. (6) Steel, Grade 6GALV, Type 340X, 60G60GE, Grade 2P&TC per MPAPS A-6, Part III .8 mm x 762 mm x coil, slit
43、edge, exposed 9.0 TECHNICAL INFORMATION For further information related to the technical content of this specification, contact: Suppliers may purchase controlled copies of this specification by contacting: Materials Engineering and Technology Dept. 10400 W. North Avenue Melrose Park, IL 60160 E-mai
44、l: MaterialsEngineeringN IHS Markit. 15 Inverness Way East Englewood CO 80112-5776 Phone: 1-800-854-7179 E-mail: AutomotiveIHS.com Website: http:/ Revision Level Change Approved by Date Approved 1610 Defined construction and dry film performance requirements for Corrosion Resistant Primer, Weldable Primer, Wash Coat, and Top Coat + Primer For each paint grade designation (Table 1). Defined top coat/ primer compatibility verification requirements for Corrosion Resistant Primer, Weldable Primer and Topcoat- Primer paint grade designations (Table 2). R. Goluch 10/6/2016
