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. 2015 by Navistar, Inc. JUNE 2015 Page 1 of 9 NAVISTAR, INC. Material, Parts, and Process Specifications (
2、MPAPS) NUMBER: MPAPS- A-8 Former Designation: CEMS A-8 TITLE: Steel Wire CURRENT REV No.: 1506 DATE: June 2015 WRITTEN/EDITED BY: W. Cook APPROVED BY: R. Goluch SUPERSEDES: October 2001 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specification may involve hazardous mat
3、erials, 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 regulatory limits prior to use. Change Notice: Eliminat
4、ed “Bundling wire” and “Industrial Quality Rod” classifications; Added applicable ASTM standard references; Editoral Changes; Adopted MPAPS Format. 1.0 APPLICATION Wire Rods, Coarse Round Wire, and Finished Wire and Rope Wire made of carbon, alloy and stainless Steel. Requirements for steel wire not
5、 included in this specification are in the following Engineering Material Specifications: Steel Wire Springs MPAPS A-9 2.0 SCOPE This specification covers requirements for general purpose and miscellaneous grades of steel wire and wire rods and ropes used in the Companys products. Unless otherwise s
6、pecified, the appropriate ASTM Standards will apply to this specification. 3.0 REFERENCE DOCUMENTS Unless otherwise specified, the latest issue of all referenced standards shall apply. The following standards, specifications and regulations are referenced in this specification. Quality System Standa
7、rd ISO 9001 or TS-16949 CFR Title 29, Part 1910 NAVISTAR Manufacturing Std. MS-D-13 NAVISTAR Engineering Design Std A-16 NAVISTAR MPAPS B-50 Mil Spec W6940 ASTM A1007 ASTM A853 ASTM A368 ASTM A555 ASTM A510/510M ASTM A752/752M 4.0 REQUIREMENTS Steel wire is classified by its usage and chemical compo
8、sition. 4.1 Wire Classification and Chemical Composition Steel wire and wire rods and ropes purchased to this specification will conform to the required analysis for the steel shown in Table I. NUMBER: MPAPS A-8 TITLE Steel Wire CURRENT ISSUE DATE: June 2015 This document is restricted and may not b
9、e sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. JUNE 2015 Page 2 of 9 TABLE I CLASSIFICATION, CHEMICAL COMPOSITION AND DESCRIPTION OF WIRE TYPES Type of Wire Steel Designa
10、tion, ASTM Std Description Bright basic 1006, 1008,1010,1015, 1018,1020 A510 A853 Low carbon steel wire, hard drawn dry without any treatment or processing to change normal properties obtained by cold drawing. Alloy Steel A752 Alloy steel rod and wire, for applications requiring improved properties
11、Rope wire: Uncoated Steel Standard carbon Steel* except: P 0.045% A510 A1007 Wire intended for rope fabrication. Steel is selected and carefully prepared to produce a high tensile strength wire with superior toughness. Refined drawing techniques are used to produce rope wire from thermally treated r
12、ods or wire. Rope wire: Zinc-coated steel A510 A1007 Wire for rope fabrication is zinc-coated to finished size or coated and drawing to finished size. The zinc coating can be applied by a hot dip or electrolytic process. Rope wire: stainless steel Types: 302, 304 or 316 A555 A368 Corrosion and/or he
13、at resistant wire used for rope fabrication. Special drawing may be required to satisfy special fatigue strength requirements. * Specific steel grade dependent upon flexibility and strength requirements of finished products. 4.2 Material Requirements Unless otherwise specified, materials supplied sh
14、all conform to the general requirements of ASTM A510, ASTM A752 or ASTM A555 as applicable. 4.3 Surface And Mechanical Requirements Steel wire and rope wire purchased to this specification will conform to the surface properties shown in Table II and the mechanical requirements of ASTM A853 and A1007
15、 respectively or A368 (Stainless Steel) or (See Appendix for typical mechanical properties). NUMBER: MPAPS A-8 TITLE Steel Wire CURRENT ISSUE DATE: June 2015 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Su
16、ppliers are required to assume all patent liability. 2015 by Navistar, Inc. JUNE 2015 Page 3 of 9 TABLE II SURFACE AND MECHANICAL REQUIREMENTS Type of Wire Surface and Mechanical Requirements bright basic Surface shall be bright and free from seams or scratches which would make wire unsuitable for g
17、eneral use. Wire shall have no appreciable cracks after being cold bent flat on itself and hammering down to a thickness of one diameter. bundling Wire shall withstand tight twisting on inself in rope-like strings. It shall not show defects or spring back when one piece is closely wound on another s
18、traight piece. rope wire The surface shall not contain imperfections inconsistent with good commercial practice. No cracks shall be induced by wrapping the wire twice in a close helix about a mandrel three times the nominal diameter of the wire. If the wire is zinc coated, no zinc shall be removed b
19、y rubbing with bare fingers after the coated wire is wrapped twice in a close helix about a mandrel five times the nominal wire diameter. Tensile strength is dependent on grade, thus, specific properties should comply with requirements on drawings. 4.4 Dimensional Tolerances Wire purchased to this s
20、pecification will meet the appropriate dimensional tolerances shown in Tables III and IV. TABLE III DIAMETER AND OUT-OF-ROUND* TOLERANCES, UNCOATED WIRE Wire Diameter, mm, incl Tolerance, plus or minus, mm Wire Diameter, inch, incl Tolerance, plus or minus, inch Round wire in coils Straightened and
21、cut wire 0.89 to under 1.93 over 1.93 to 3.77 over 3.77 to 12.69 12.70 and over 0.02 0.05 0.05 0.08 0.02 0.05 0.08 0.10 0.035 to under 0.076 over 0.076 to 0.148 over 0.148 to 0.499 0.500 and over 0.001 0.002 0.002 0.003 0.001 0.002 0.003 0.004 * Permissible out-of-round: 50% of the total gage tolera
22、nce. TABLE IV LENGTH TOLERANCES, UNCOATED, STRAIGHTENED AND CUT WIRE Cut Length, m Tolerances, plus or minus, mm Cut Length, ft Tolerance, Plus or minus, Inch Under 0.91 0.91 to 3.66, incl over 3.66 1.5 2.3 3.0 Under 3 3 to 12, incl over 12 0.06 0.09 0.12 NUMBER: MPAPS A-8 TITLE Steel Wire CURRENT I
23、SSUE DATE: June 2015 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. 2015 by Navistar, Inc. JUNE 2015 Page 4 of 9 4.5 For aircraft quality wire ropes (zi
24、nc-coated, single strand), the dimensions and tolerances will be consistent with the latest issue of MIL-W6940. Stainless steel ropes will conform to ASTM A368. Dimensions and tolerances for individual wires and wire ropes are listed in Tables V and VI, respectively. See Appendix section on wire rop
25、e for further discussion on measurement techniques. TABLE V DIAMETER TOLERANCE OF CARBON STEEL WIRE USED FOR ROPES Diameter Range Uncoated Zinc-Coated at Finished Size mm inch mm inch mm inch 0.25-0.61 0.010-0.024 +0.008 -0.020 +0.003 -0.007 +0.013 -0.025 +0.0005 -0.0010 0.62-1.50 0.025-0.059 +0.013
26、 -0.025 +0.005 -0.010 +0.025 -0.051 +0.0010 -0.0020 1.51-2.34 0.060-0.092 +0.025 -0.025 +0.010 -0.010 +0.038 -0.064 +0.0015 -0.0025 2.35-2.90 0.093-0.141 +0.025 -0.038 +0.010 -0.015 +0.051 -0.076 +0.0020 -0.0030 TABLE VI MAXIMUM OVALITY OF WIRE ROPES Nominal Diameter Permissible Ovality*, max mm Inc
27、h wire core rope, % fiber core rope, % Up to 3 Up to 0.118 7 - 3-5 0.118-0.197 6 8 5-7 0.197-0.276 5 7 Over 7 Over 0.276 4 6 * The variation in four diameter measurements will not exceed the ovality requirements 4.6 Additional Requirements 4.6.1. For wire ropes, no strand splices or welded joints wi
28、ll be allowed in completed strands. No wire joints (e.g. welds) will be allowed in a 3-wire strand. In strands containing more than three wires, wire joints are not allowed to be more frequent than one weld in any 46 m (150 feet) of completed strand. For aircraft quality strands containing 19 or mor
29、e wires, joints will be well spaced and not less than 61 m (200 feet) apart. 4.6.2. Requirements for the strength, surface coating, and ending procedure for all ropes will be denoted on the design drawings. 5.0 QUALITY All product supplied shall be clean and free from dirt, oils sharp edges, or defe
30、cts harmful to product performance. The supplier should be capable of providing statistical evidence that the material has been produced within process control limits established by the supplier for this product and that the process is capable of meeting the requirements of this specification. NUMBE
31、R: MPAPS A-8 TITLE Steel Wire CURRENT ISSUE DATE: June 2015 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. 2015 by Navistar, Inc. JUNE 2015 Page 5 of 9
32、6.0 QUALIFICATION Engineering qualification of sources is required in advance of production shipments. Samples shall be accompanied by test data certifying that all requirements of the specification have been met. 6.1 Quality Control Plan A Quality Control Plan for products supplied to the requireme
33、nts of this specification will be established by mutual agreement between NAVISTAR and the supplier. Unless specific exception is noted, the following characteristics, where applicable*, shall be included in the plan as features for management by statistical process control.* * Other characteristics
34、 for inclusion in the control plan may be specified on the engineering drawing and/or purchase order. * See NAVISTAR Engineering Design Standard A-16 7.0 SOURCE APPROVAL AND QUALITY CONTROL 7.1 Supplier Requirements All suppliers to NAVISTAR are required to be registered to ISO 9001 Quality System R
35、equirements. 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 maintain their certification with an accredited registrar and must furnish copies of registra
36、tion certificates to their Corporate Buyer upon request. 7.2 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 permitt
37、ed 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 Materials Engineering and Purchasing and Supplier Development of the proposed change(s). Test data indicating
38、 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 the request for change. 7.3 Process Control The supplier shall either perform and report result
39、s 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 capable of providing all required properties. The part supplier and the quality control manager of
40、 the using NAVISTAR plant may determine testing and reporting requirements on specific products. 8.0 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
41、 appearance of the part. Diameter NUMBER: MPAPS A-8 TITLE Steel Wire CURRENT ISSUE DATE: June 2015 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. 2015 b
42、y Navistar, Inc. JUNE 2015 Page 6 of 9 9.0 DESIGNATION ON DRAWINGS Specification of steel wire on drawings and purchase orders will be by the size and type of wire. Any other necessary information, such as a particular steel grade or strength requirements of ropes or ended cables, will also be inclu
43、ded. Examples: Bright Basic Wire, MPAPS A-8 Wire Rope, Aircraft Quality, MPAPS A-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 a
44、nd Technology Dept. 10400 W. North Avenue Melrose Park, IL 60160 E-mail: 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 A-8 TITLE Steel Wire CURRENT ISSUE DATE: June 2015 This document
45、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. 2015 by Navistar, Inc. JUNE 2015 Page 7 of 9 A.0 GENERAL INFORMATION (Not a requirement) A.1 TYPICAL MECHANICAL PROPERT
46、IES Typical mechanical properties for wire are shown in Tables I and II. TABLE I TYPICAL TENSILE STRENGTH, BRIGHT BASIC WIRE, HARD DRAWN AND ANNEALED IN PROCESS Wire Size Typical Tensile Strength, MPa Wire Size Typical Tensile Strength, 103 steel wire gage diameter, mm diameter, inch SAE Designation
47、 SAE Designation 1006 1008 1010 1012 1018 1006 1008 1010 1012 1018 - 10.32 thru 19.05* 407-441 427-455 462-496 483-517 517-552 0.4062 thru 0.7500* 59- 64 62- 66 67- 72 70- 75 75- 80 - 6.747 thru 9.922 441-469 455-483 496-517 517-538 552-572 0.2656 thru 0.3906 64- 68 66- 70 72- 75 75- 78 80- 83 - 6.3
48、50 469 490 531 545 586 0.2500 68 71 77 79 85 - 5.953 476 496 538 552 593 0.2344 69 72 78 80 86 - 5.556 483 503 538 558 600 0.2188 70 73 78 81 87 - 5.159 496 517 538 565 600 0.2031 72 75 78 82 87 - 4.763 503 524 545 572 607 0.1875 73 76 79 83 88 7 4.496 517 538 552 593 614 0.1770 75 78 80 86 89 8 4.115 552 572 607 627 669 0.1620 80 83 88 91 97 9 3.767 593 614 64
