1、NAVISTAR, INC. CEMS (CORPORATE ENGINEERING MATERIAL SPECIFICATION) NUMBER: CEMS A-6, PART III TITLE: Low Carbon Steel, Flat Rolled and Structural Shapes - Part III. ORGANIC COATED SHEET AND STRIP CURRENT ISSUE DATE: OCTOBER 2008 WRITTEN/REVIEWED BY: Materials Engineering APPROVED BY: Materials Engin
2、eering SUPERSEDES ISSUE OF: APRIL 2006 PRINTED 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 res
3、ponsible to consult appropriate safety and health practices and to determine the applicability of regulatory limits prior to use. Change Notice: Replaced “International Truck and Engine Corporation” with “Navistar, Inc.” per corporate directive; added Grade 2PPW option; editorial changes. CEMS A-6 i
4、s divided into three parts, as follows: Part I - covers uncoated base metal requirements for low carbon steel products Part II - Metallic Coated Low Carbon Steel Sheet/Strip (including galvanized and aluminized) Part III - Organic Coated Low Carbon Steel Sheet/Strip Part III. ORGANIC COATED SHEET AN
5、D STRIP 1.0 SCOPEPart III of this specification covers the Companys requirements for organic coated steel sheet and strip products. 2.0 INTRODUCTIONThis specification covers the requirements for organic coated steel sheet and strip products, and describes a system for specifying these products on en
6、gineering drawings. Organic coatings are designated by GRADE for each type of coating. 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 CEMS B-50 specification. 3.0 CONTENTS PAGE INTR
7、ODUCTION . 1 REFERENCE DOCUMENTS 2 CLASSIFICATION 2 GENERAL REQUIREMENTS 2 QUALITY. 4 SOURCE APPROVAL AND QUALITY CONTROL 5 DESIGNATION ON DRAWINGS AND PURCHASE ORDERS . 5 PACKING AND SHIPPING 6 CONTACT INFORMATION 6 This document is restricted and may not be sent outside Navistar, Inc. or reproduce
8、d without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2008 by Navistar, Inc. OCTOBER 2008 Page 1 of 6 Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted
9、without license from IHS-,-,-NUMBER: TITLE: Low Carbon Steel, Flat Rolled and Structural CURRENT ISSUE DATE: CEMS A-6, PART III Shapes Part III. Organic Coated Sheet and Strip October 2008 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Co
10、rporate Technical Standards. 4.0 REFERENCE DOCUMENTSUnless otherwise specified the latest issue of all reference standards shall apply. The following specifications, standards, and regulations are referenced in this specification: Quality System Standard ISO 9001 or TS-16949 NAVISTAR CEMS A-6, Part
11、I NAVISTAR CEMS G-5, Part VCFR Title 29, Part 1910 NAVISTAR CEMS A-6, Part II NAVISTAR TMS-9009 NAVISTAR Manufacturing Std. MS-D-13 NAVISTAR CEMS B-50 NAVISTAR TMS-9516 5.0 CLASSIFICATION Organic coatings are classified by Grade. Organic coatings will be identified according to Grades as shown in Ta
12、ble I for all Navistar products. TABLE I Grade Coating Application Prime Painted WELDABLE one side Prime Painted WELDABLE two sides Prime Painted one side Prime Painted two sides 1PPW 2PPW 1PPX 2PPX 1P&TC Primed (one side) and Top Coated 2P&TC Primed (two-sides) and Top Coated 6.0 GENERAL REQUIREMEN
13、TS 6.1 Base Metal Properties of the base sheet steel furnished shall conform to limits established for the Grade, Type, and quality of the sheet or strip specified on the Engineering drawing and/or purchase order, as described in CEMS A-6, Part I. 6.2 Base Metal Metallic Coated If the pre-painted sh
14、eet is also required to have a metallic coating (e.g., galvanized), the coated sheet will be required to meet the applicable requirements of CEMS A-6, Part II. 6.3 Organic Coating Class And Requirements 6.3.1 Weldable pre-prime coating 6.3.1.1 Grade 1PPW This is a pre-painted sheet steel product wit
15、h a weldable primer coated onto the exposed surface of the sheet. A wash coat or backer coat is applied to the unexposed side of the sheet to provide minimal corrosion protection in storage and handling and lubrication during roll forming. 6.3.1.1.1 Dry Film Performance Requirement Weldable PrimerTh
16、e weldable primer consists of an organic coating meeting the dry film performance requirements of the Class II finish as per TMS-9009, except that min dry film thickness and min gloss is not required. 6.3.1.1.2 Dry Film Performance Requirement Wash CoatThe wash coat consists of a thin organic coatin
17、g meeting the dry film performance requirements of the Class IV finish as per TMS-9009, except that min dry film thickness and min gloss is not required. Suppliers are required to assume all patent liability. 2008 by Navistar, Inc. OCTOBER 2008 Page 2 of 6 Copyright Navistar International Corporatio
18、n Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NUMBER: TITLE: Low Carbon Steel, Flat Rolled and Structural CURRENT ISSUE DATE: CEMS A-6, PART III Shapes Part III. Organic Coated Sheet and Strip October 2008 This document
19、is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. 6.3.1.1.3 WeldabilityParts fabricated with the weldable primer coated sheet steel will meet all quality and performance requirements described in TMS-9516 for spot welded ass
20、emblies. The weldable primer must be compatible with all plant welding processes in use at the receiving manufacturing plant. 6.3.1.1.4 Spot Prime Requirement Spot welds on the weldable primer coated sheet steel should be spot primed in order to enhance corrosion resistance, if the full prime is not
21、 going to be applied. 6.3.1.2 Grade 2PPW This is a pre-painted sheet steel product with a weldable primer coated onto both sides of the sheet. 6.3.1.2.1 Dry Film Performance Requirement Weldable PrimerThe weldable primer consists of an organic coating meeting the dry film performance requirements of
22、 the Class II finish as per TMS-9009, except that min dry film thickness and min gloss is not required. 6.3.1.2.2 WeldabilityParts fabricated with the weldable primer coated sheet steel will meet all quality and performance requirements described in TMS-9516 for spot welded assemblies. The weldable
23、primer must be compatible with all plant welding processes in use at the receiving manufacturing plant. 6.3.1.2.3 Spot Prime Requirement Spot welds on the weldable primer coated sheet steel should be spot primed in order to enhance corrosion resistance, if the full prime is not going to be applied.
24、6.3.2 Grade 1PPX This is a pre-painted sheet steel product with a corrosion resistant primer coated onto the exposed surface of the sheet. A wash coat or backer coat is applied to the unexposed side of the sheet to provide minimal corrosion protection in storage and handling and lubrication during r
25、oll forming. 6.3.2.1 Dry Film Performance Requirement PrimerThe primer consists of an organic coating meeting the dry film performance requirements of the Grade 56 primer as per CEMS G-5, Part V, Grade 56, except that min dry film thickness and min gloss is not required. 6.3.2.2 Dry Film Performance
26、 Requirement Wash CoatThe wash coat consists of a thin organic coating meeting the dry film performance requirements of the Class IV finish as per TMS-9009, except that min dry film thickness is not required. 6.3.3 Grade 2PPX This is a pre-painted sheet steel product with a corrosion resistant prime
27、r coated onto both the exposed and the unexposed surfaces of the sheet. This product offers optimal corrosion resistance in severe service. 6.3.3.1 Dry Film Performance Requirement PrimerThe primer consists of an organic coating on both the top and bottom surfaces of the steel sheet. This primer wil
28、l meet the dry film performance requirements (both sides) of the Grade 56 primer as per CEMS G-5, Part V, Grade 56, except that min dry film thickness and min gloss is not required. Suppliers are required to assume all patent liability. 2008 by Navistar, Inc. OCTOBER 2008 Page 3 of 6 Copyright Navis
29、tar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NUMBER: TITLE: Low Carbon Steel, Flat Rolled and Structural CURRENT ISSUE DATE: CEMS A-6, PART III Shapes Part III. Organic Coated Sheet and Strip
30、 October 2008 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. 6.3.4 Grade 1P&TC This is a pre-painted sheet steel product with a corrosion resistant primer and a topcoat coated onto the exposed surface of the
31、 sheet. A wash coat or backer coat is applied to the unexposed side of the sheet to provide minimal corrosion protection in storage and handling and lubrication during roll forming. 6.3.4.1 Dry Film Performance Requirement Primer and TopcoatThe primer and topcoat consist of two separate organic coat
32、ings. The combined coatings will meet the dry film performance requirements of the Class I finish as per TMS-9009, except min dry film thickness is not required. 6.3.4.2 Exposed Surface Protection A strippable-waxed coating or plastic film to prevent damage to the finished surface during normal hand
33、ling and storage procedures and during subsequent forming and fabricating or painting operations will be applied to protect the exposed surface. The protective coating/film must be readily removable, and removal of the film must have no detrimental effect upon the appearance of the exposed surface.
34、6.3.5 Grade 2P&TC This is a pre-painted sheet steel product with a corrosion resistant primer applied to both sides of the sheet and a topcoat coated onto the exposed surface of the sheet. 6.3.5.1 Dry Film Performance Requirement PrimerThe primer consists of an organic coating on the bottom or unexp
35、osed surface of the steel sheet. This primer will meet the dry film performance requirements of the Grade 56 primer (except film thickness) as per CEMS G-5, Part V, Grade 56. 6.3.5.2 Dry Film Performance Requirement Primer and TopcoatThe primer and topcoat consist of two separate organic coatings. T
36、he combined coatings will meet the dry film performance requirements of the Class I finish (except min film thickness) as per TMS-9009. 6.3.5.3 Exposed Surface Protection A strippable-waxed coating or plastic film to prevent damage to the finished surface during normal handling and storage procedure
37、s and during subsequent forming and fabricating or painting operations will be applied to protect the exposed surface. The protective coating/film must be readily removable, and removal of the film must have no detrimental effect upon the appearance of the exposed surface. 7.0 QUALITYCoated sheet an
38、d strip products will be free from injurious defects such as blisters and bare spots detrimental to fabrication and/or function of the part. The supplier should be able to provide certification that product supplied to this specification meets the applicable requirements defined in this specificatio
39、n. 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 specification. Suppliers are required to
40、 assume all patent liability. 2008 by Navistar, Inc. OCTOBER 2008 Page 4 of 6 Copyright Navistar International Corporation Provided by IHS under license with INTERNNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NUMBER: TITLE: Low Carbon Steel, Flat Rolled and Stru
41、ctural CURRENT ISSUE DATE: CEMS A-6, PART III Shapes Part III. Organic Coated Sheet and Strip October 2008 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. 8.0 SOURCE APPROVAL AND QUALITY CONTROL8.1 Supplier R
42、equirements All suppliers 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 mu
43、st maintain their certification with an accredited registrar and must furnish copies of registration certificates to their Corporate Buyer upon request. 8.2 Approval Parts supplied against contracts or purchase orders citing this specification shall be equivalent in all respects to those samples tha
44、t 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 Materials Engineering a
45、t TDTC 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 submitted with t
46、he request for change. 8.3 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 process capa
47、ble of providing all required properties. The part supplier and the plant metallurgist and/or the quality control manager of the using Navistar plant may determine testing and reporting requirements on specific products. 9.0 DESIGNATION ON DRAWINGS AND PURCHASE ORDERS 9.1 Designation on Drawings Mat
48、erial designations will consist of the steel grade (per CEMS A-6, Part I), the metallic coating designation (per CEMS 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
