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. 2014 by Navistar, Inc. JUNE 2014 Page 1 of 8 NAVISTAR, INC. Material, Parts, and Process Specifications (
2、MPAPS) NUMBER: MPAPS H-1 Former Designation: CEMS H-1 TITLE: Powder Metal Structural Parts CURRENT REV No.: 1406 DATE: JUNE 2014 WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES: CEMS H-1 - August 2008 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT
3、 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 health practices and to determine the applicability of r
4、egulatory limits prior to use. Change Notice: Changed to new MPAPS format; editorial changes. 1.0 APPLICATION Powder metal (P/M) structural parts covered herein refer to machine components whose load carrying capability, strength, and density are the major design factors. For applications involving
5、combined functions such as structural and self-lubrication or wear, a Materials Engineer should be consulted. 1.1 Part Development and Specification (Structural Application) 1.1.1 A complete material specification for a P/M part cannot be written at the proposal stage. The engineer must refer to the
6、 design guide in “Appendix - General Information” for detailed recommendations regarding the development of an effective material specification. 1.1.2 The design engineer should make a tentative material choice in cooperation with a P/M parts supplier and/or Materials Engineer using the materials li
7、sted in Table I. This table, based upon MPIF Standard 35, describes materials in terms of composition and strength. Since limits for the other mechanical properties cannot initially be specified, some typical mechanical properties for test bars are shown in “Appendix - General Information” as a guid
8、e. Additional mechanical properties and design information are found in other MPIF or ASTM specifications. See “Mechanical Property Requirements”, Section 6.2. 1.1.3 Prototype parts will be “de-rated” to assist in the development of minimum engineering properties for the specification of the propose
9、d parts. In some cases, the de-rating will be done by specifying prototype parts with a lower strength value than the minimum specified for production parts. In other cases, the de-rating will be done by specifying prototype material density lower than the minimum proposed for production parts. 2.0
10、SCOPE This specification covers the Corporations requirements for structural parts produced from powdered metals. The term “P/M parts” is used throughout this specification as the designation for powdered metal parts. Note: Requirements for all powdered metal bearings and bushings with low to medium
11、 density, in which porosity and self-lubrication are paramount, are classified as porous sintered metal bearings and are covered in CEMS C-5, Bearing and Bushing Alloys. NUMBER: MPAPS H-1 TITLE: POWDER METAL STRUCTURAL PARTS REVISION: 1406 This document is restricted and may not be sent outside Navi
12、star, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2014 by Navistar, Inc. JUNE 2014 Page 2 of 8 2.1 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirements of this specifica
13、tion must comply with the requirements of the MPAPS B-50 specification. 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
14、 ISO 9001 or TS-16949 CFR Title 29, Part 1910 MPIF Standard 35 MPIF Standard 40 NAVISTAR Manufacturing Std. MS-D-13 MPIF Standard 41 NAVISTAR MPAPS B-50 ASTM B 962 NAVISTAR CEMS C-5 NAVISTAR CEMS HT-1 ASTM B 963 4.0 REQUIREMENTS Materials covered by this specification are identified, as shown in Tab
15、le I, by a designation code which is based on the Metal Powder Industries Federation (MPIF) system. The P/M code is based on chemistry and minimum strength value. The prefix letters F, FC, FD, FL, FN, and FX designate iron, carbon and alloy steels, and prefix letters SS designate stainless steels, a
16、nd are followed by four digit numbers. In ferrous materials the first two digits of the four digit code indicate the percentage of the major alloying constituent present. Combined carbon is designated by the last two numbers in the four-digit series. The three digit numbers in the stainless steel se
17、ries (SS) indicate the type of stainless steel. The suffix letters indicate the minimum yield strength value in the as-sintered condition or the minimum tensile strength value in the heat treated condition. P/M prototype parts must comply with the appropriate requirements listed in Section 6.1, “Qua
18、lification”. 4.1 New Materials New or other P/M materials not included in Table I, for which the MPIF has assigned a material code, will be identified by that code. Refer to the latest issue of MPIF Standard 35. 5.0 QUALITY Parts will be clean and free from scale, defects, flaws or any condition tha
19、t would adversely affect performance. To properly evaluate and check P/M parts, it is necessary that performance tests on prototype parts be supplemented by controlled tests made in the laboratory to establish minimum acceptable mechanical property requirements of the parts. These tests will be comp
20、letely described on the drawing* in terms of the test method, minimum load requirements, location of load application, or other test limits as necessary. *Common practice is to specify a minimum crush load or breaking strength on the drawing for each part. NUMBER: MPAPS H-1 TITLE: POWDER METAL STRUC
21、TURAL PARTS REVISION: 1406 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. 2014 by Navistar, Inc. JUNE 2014 Page 3 of 8 5.1 Impregnation Impregnation is
22、prohibited unless it is specified on the drawing. No oil of any kind for any purpose will be permitted unless specified on the engineering drawing. When impregnation is required, only the vacuum method will be allowed and the impregnant (oil) will be identified on the drawing. 5.2 Dimensional Tolera
23、nces The dimensions will be within limits for commercial practice of the P/M industry. Dimensional tolerances, when critical, will be specified on the drawing. Specific tolerances are subject to agreement between the purchaser and the supplier. 5.3 Inspection The inspection of P/M parts involves the
24、 performance of all material property tests described herein and those tests described on the engineering drawing, as well as inspection for size and shape. Sampling details will be as agreed upon by the purchaser and supplier 6.0 QUALIFICATION Production material can be furnished under this specifi
25、cation only after engineering qualification unless waived by the controlling engineering department. When requested by the appropriate purchasing department, the supplier will be required to furnish prototype samples to the controlling engineering department. The density of prototype parts will be 0
26、.1 + 0.03 g/cm3 lower than the minimum for the range specified, unless otherwise specified. Whenever possible, prototype parts will be processed with production dies. Where high cost makes this impractical, the controlling engineering department may approve the testing of prototype parts machined fr
27、om P/M slugs. Final approval will be granted only after receipt of acceptable production parts. The prototype parts will be individually identified and will be accompanied by the following information: 1. Certification that all dimensions of each part are as specified. 2. Total weight of each part.
28、3. Actual density of each part. 4. Apparent hardness of each part. 5. Total weight, break strength, microstructure and chemical composition for each of five randomly selected parts representing the shipment. 6. Results of all tests specified on the drawing. After final qualification of prototype par
29、ts, the engineering drawings should be reviewed to determine if any changes are necessary. Confirm correctness of the material description including the identification of impregnation material if used. Add all specialized inspection requirements such as fracture tests, density, hardness and microstr
30、ucture, with critical locations for testing indicated on the drawings. Include a detailed description of necessary test fixtures. Future changes in formulation or processing will require engineering approval. 7.0 METHODS OF TEST 7.1 Density Test per ASTM B 328. For complex shapes with possible densi
31、ty variations, the section to be inspected will be designated on the engineering drawing. NUMBER: MPAPS H-1 TITLE: POWDER METAL STRUCTURAL PARTS REVISION: 1406 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards.
32、Suppliers are required to assume all patent liability. 2014 by Navistar, Inc. JUNE 2014 Page 4 of 8 7.2 Hardness The reported apparent hardness will be an average of not less than six individual readings. 7.3 Special Tests Radial Crush, Gear Tooth Fracture, Transverse Fracture - Conduct these tests
33、according to CEMS Test Method HT-1. For any other special test, see the engineering drawing. 8.0 SOURCE APPROVAL AND QUALITY CONTROL 8.1 Supplier Requirements All suppliers to NAVISTAR are required to be registered to ISO 9001 Quality System Requirements. NAVISTAR will also accept TS-16949 registrat
34、ion as long as the supplier can also fulfill all AIAG PPAP (Production Part Approval Process) documentation and approval requirements. Suppliers must maintain their certification with an accredited registrar and must furnish copies of registration certificates to their Corporate Buyer upon request.
35、8.2 Approval Parts supplied against contracts or purchase orders citing this specification shall be equivalent in all respects to those samples which were approved by the purchaser. No changes in formulation or processing practices are permitted without approval. In the event that changes in materia
36、l, properties, processing practices, construction, color, or labeling of the product are required, the supplier shall notify NAVISTAR Materials Engineering and Purchasing and Supplier Development of the proposed change(s). Test data indicating conformance to all requirements of this specification, t
37、est 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 the 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 9
38、001 or TS-16949 guidelines, or provide statistical evidence of the lot having been produced in a state of statistical control and with a process capable of providing all required properties. The part supplier and the quality control manager of the using NAVISTAR plant may determine testing and repor
39、ting requirements on specific products. 9.0 SHIPPING AND HANDLING Shipping and identification shall be in accordance with NAVISTAR Manufacturing Standard MS-D-13. Parts shall be packaged so as to avoid any damage in shipment detrimental to the appearance of the part. 10.0 DESIGNATION ON DRAWINGS Mat
40、erial designation on drawings will include the material designation code, break strength and any other specific requirements not included in this specification. Examples: F-0000-15 MPAPS H-1, Min Apparent Hardness RF 40 Radial Crush Strength - 350 lbf (1.6 kN) min, Vacuum impregnate with _oil. FN-02
41、00-25 MPAPS H-1, Carburize - Surface File Hard Fracture Strength 9500 lbf (42.3 kN) min tested as shown. FN-0208-130HT MPAPS H-1, Min Apparent Hardness RC 35, Min Part Weight - 180 g Microstructure will be essentially uniform tempered martensite. Fracture Strength 4000 lbf (17.8 kN) min tested as sh
42、own. NUMBER: MPAPS H-1 TITLE: POWDER METAL STRUCTURAL PARTS REVISION: 1406 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. 2014 by Navistar, Inc. JUNE 20
43、14 Page 5 of 8 10.0 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-m
44、ail: MaterialsEngineeringN IHS Global Inc. 15 Inverness Way East Englewood CO 80112-5776 Phone: 1-800-854-7179 E-mail: AutomotiveIHS.com Website: http:/ NUMBER: MPAPS H-1 TITLE: POWDER METAL STRUCTURAL PARTS REVISION: 1406 This document is restricted and may not be sent outside Navistar, Inc. or rep
45、roduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2014 by Navistar, Inc. JUNE 2014 Page 6 of 8 TABLE I - CLASSIFICATION, MINIMUM STRENGTH and CHEMICAL COMPOSITION Material Designation Code (1) Obsolete CEMS H-1 Designation Minimum S
46、trength, ksi Chemical Composition, percent (2) Typical Values (3),(4) Yield Strength Tensile Strength Carbon Copper Nickel Other Apparent Hardness Density Mg/m3 F-0000-10 - 10 - 0.0-0.3 - - - 40 HRF 6.1 F-0000-15 F-0000-R 15 - 0.0-0.3 - - - 60 HRF 6.7 F-0000-X - F-0000-S - - 0.0-0.3 - - - - 6.8-7.2
47、F-0000-20 F-0000-T 20 - 0.0-0.3 - - - 80 HRF 7.3 F-0005-15 - 15 - 0.3-0.6 - - - 25 HRB 6.1 F-0005-20 F-0005-R 20 - 0.3-0.6 - - 40 HRB 6.6 F-0005-X - 0.3-0.6 - - - F-0005-25 F-0005-S 25 50 0.3-0.6 - - - 55 HRB 6.9 F-0005-50HT - - 60 0.3-0.6 - - - 20 HRC 6.6 F-0005-60HT - - 70 0.3-0.6 - - - 22 HRC 6.8
48、 F-0005-70HT - - - 0.3-0.6 - - - 25 HRC 7.0 F-0008-20 - 20 - 0.6-0.9 - - - 35 HRB 5.8 F-0008-25 - 25 - 0.6-0.9 - 50 HRB 6.2 F-0008-30 F-0008-R 30 - 0.6-0.9 60 HRB 6.6 F-0008-X F-0008-35 F-0008-S 35 - 0.6-0.9 - - - 70 HRB 7.0 F-0008-55HT - - 55 0.6-0.9 - - - 22HRC F-0008-65HT - - 65 0.6-0.9 - - - 28
49、HRC 6.3 F-0008-75HT - - 75 0.6-0.9 - - - 32 HRC 6.6 F-0008-85HT - - 85 0.6-0.9 - - - 35 HRC 7.1 FC-0200-15 15 - 0.0-0.3 1.5-3.9 - - 11 HRB 6.0 FC-0200-18 18 - 0.0-0.3 1.5-3.9 - 18 HRB 6.3 FC-0200-21 - 21 - 0.0-0.3 1.5-3.9 - - 26 HRB 6.6 FC-0200-24 - 24 - 0.0-0.3 1.5-3.9 - - 36 HRB 6.9 FC-0205-30 30 - 0.3-0.6 1.5-3.9 - - 37 HRB 6.0 FC-0205-35 35 - 0.3-0.6 1.5-3.9 - 48 HRB 6.3 FC-0205-40 FC-0205-R 40 - 0.3-0.6 1.5
