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 26 NAVISTAR, INC. Material, Parts, and Process Specifications
2、(MPAPS) NUMBER: MPAPS- A-10, PART I Former Designation: CEMS A-10 PART 1 TITLE: Mechanical Steel Tubing Part I - Electric Resistance Welded Mechanical Steel Tubing CURRENT REV No.: 1506 DATE: June 2015 WRITTEN/EDITED BY: W. Cook APPROVED BY: R. Goluch SUPERSEDES: December 2012 PRINTED COPIES OF THIS
3、 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 health practices a
4、nd to determine the applicability of regulatory limits prior to use. Change Notice: Reformatted for MPAPS, Editorial Changes 1.0 APPLICATION This specification is in three parts: Part I - Electrical Resistance Welded Mechanical Steel Tubing Part II - Cold Drawn Butt Welded Mechanical Steel Tubing Pa
5、rt III - Seamless Mechanical Steel Tubing NAVISTAR specifications covering other tubular products used by the Company are as follows: Welded and Seamless Steel Pipe . MPAPS A-18 Structural Steel Tubing . MPAPS A-38 Fluid Line Steel Tubing MPAPS A-45 2.0 SCOPE This part of the specification covers th
6、e requirements for electric resistance welded (ERW) mechanical tubing used in the Companys products. Unless otherwise specified herein, ASTM A 513 will apply. Several types of coated or galvanized ERW steel tubing are also covered by this specification. 2.1 Restricted Chemical Substances Effective J
7、anuary 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the MPAPS B-50 specification. 3.0 CONTENTS PAGE GRADE CLASSIFICATION . 2 CHEMICAL COMPOSITION . 4 MECHANICAL PROPERTIES . 4 DIMENSIONAL TOLERANCES 10 QUALITY . 24 METHODS OF TEST 24 DE
8、SIGNATION ON DRAWINGS AND PURCHASE ORDERS 25 PACKAGING AND SHIPPING 25 APPENDIX Green Sheets NUMBER: MPAPS A-10, PART I TITLE: Mechanical Steel Tubing, Part I Electric Resistance Welded Mechanical Steel Tubing CURRENT ISSUE DATE: JUNE 2015 This document is restricted and may not be sent outside Navi
9、star, 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 26 4.0 REFERENCE DOCUMENTS Unless otherwise specified, the latest issue of all referenced standards shall apply. The follo
10、wing standards, specifications and regulations are referenced in this specification. Quality System Standard 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 ASTM A 513 ASTM A 1011 ASTM A 370 ASTM B 117 5.0 GRAD
11、E CLASSIFICATION Electric resistance welded tubing can be produced from either hot or cold rolled strip in as-welded, sink drawn or mandrel drawn grades. The as-welded and sink drawn grades can be further processed to control welding flash height. For a more complete description of the grades, see “
12、Appendix General Information.” Table 1 is a summary of the grades available. For coated steel tubing, see Section 5.3 below. TABLE I GRADE CLASSIFICATION Designation Description General Size Availability * Navistar Grade Obsolete Grade Approx ASTM A 513 Type Outside Diameter Wall Thickness Inch Mm I
13、nch mm H-F 1 1 Hot Rolled, Flash In 0.75 thru 8.0 19.0 thru 203 0.065 thru 0.500 1.65 thru 12.70 H-10 2 1 Hot Rolled, Flash Controlled To 0.010 Inch (0.25 mm) 1.125 thru 8.0 28.6 thru 203 H-5 3 1 Hot Rolled, Flash Controlled to 0.005 inch (0.13 mm) 0.75 thru 8.0 19.0 thru 203 C-F 4 2 Cold Rolled, Fl
14、ash In 0.25 thru 7.0 6.35 thru 178 0.028 thru 0.165 0.71 thru 4.19 C-10 5 2 Cold Rolled, Flash Controlled To 0.010 Inch (0.25 mm) 1.125 thru 7.0 28.6 thru 178 C-5 6 2 Cold Rolled, Flash Controlled To 0.005 Inch (0.13 mm) 0.25 thru 7.0 6.35 thru 178 H-F-SD - 3 Hot Rolled, Flash IN, Sink Drawn 0.25 th
15、ru 7.5 6.35 thru 190 0.65 thru 0.375 1.65 thru 9.52 H-10-SD - 3 Hot Rolled, Flash Controlled To 0.010 Inch (0.25 mm), Sink Drawn DOM C-0-MD 5 Hot or Cold Rolled, No Dimensional Evidence Of Flash, Mandrel Drawn 0.125 thru 7.25 3.18 thru 184 0.022 thru 0.344 0.56 thru 8.74 C-F-SD C-10-SD EBS - - Any M
16、echanical Steel tubing Grade Covered in MPAPS A-10, Parts I, II, III. CDT - - Any Sink or Mandrel Drawn Tubing Grade Covered in MPAPS A-10, Parts I, II, III. CDM - - Any Mandrel Drawn Tubing Grade Covered in MPAPS A-10, Parts I, II, III. * For specific size availability for each grade, see “Appendix
17、 General Information”. NUMBER: MPAPS A-10, PART I TITLE: Mechanical Steel Tubing, Part I Electric Resistance Welded Mechanical Steel Tubing CURRENT ISSUE DATE: JUNE 2015 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical S
18、tandards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. JUNE 2015 Page 3 of 26 5.1 Permissible Alternates When a certain grade of tubing is specified on a drawing, it may be desirable for the manufacturing department to use a better grade. Permissible alternates for e
19、ach grade of tubing are shown in Table II. See Table IV in “Appendix General Information” for comparative cost of the different grades. TABLE II PERMISSIBLE ALTERNATES Grades Permissible Alternate Grades EBS All Grades in MPAPS A-10, Parts I, II, and III H-F All Other Grades in MPAPS A-10, Part I, e
20、xcept EBS, CDT, and CDM H-10 H-5, C-10, C-5, H-10-SD, DOM H-5 C-5, DOM CDT All SD and MD Grades in MPAPS A-10, Parts I, II, and III CDM All MD Grades in MPAPS A-10, Parts I, II, and III C-F C-10, C-5, DOM C-10 C-5, DOM C-5 DOM H-F-SD H-10-SD, DOM H-10-SD DOM DOM - 5.2 Grades EBS, CDT, and CDM 5.2.1
21、Grades EBS, CDT, and CDM are codes which allow manufacturing to select a tubing grade covered in Parts I, II, or III, e.g., Grade H-F, Part I, which will satisfy both engineering and manufacturing requirements. See “Dimensional Tolerances,” Part III, for diameter and wall thickness tolerances and “A
22、ppendix General Information,” Part III, for discussion of these grades. 5.2.2 When a coded grade is specified on the engineering drawing, the selection of the appropriate tubing within that code should be made by the quality control manager of the ordering plant. The quality control manager should c
23、onsult the various departments involved from the standpoint of cost, inventory, processing, and so forth, to determine which tubing grade can be used to best advantage. The drawings and engineering specifications for individual parts should show only the coded grade. 5.2.3 When more than one plant i
24、s involved in the production of a part, it is the responsibility of the quality control manager of the originating plant to obtain the approval from other fabricating plants on the selection of tubing. In general, it should be the plant having the most critical operation who should decide upon the t
25、ubing which is most suitable for his operation. 5.2.4 Outside suppliers furnishing finished parts may use any tubing grade covered within the coded grade shown on the drawing. NUMBER: MPAPS A-10, PART I TITLE: Mechanical Steel Tubing, Part I Electric Resistance Welded Mechanical Steel Tubing CURRENT
26、 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 4 of 26 5.2.5 Outside suppliers of semi-fini
27、shed parts requiring welding, heat treating, or machining in NAVISTAR plants must obtain approval of the specific tubing grade and steel from the NAVISTAR plant quality control manager of the purchasing plant. 5.3 Coated Steel Tubing Mechanical steel tubing is also available as zinc-coated or galvan
28、ized ERW tubing of several types, as defined below. Type G standard galvanized steel tubing fabricated from hot- or cold-rolled pre-galvanized steel sheet. Galvanize coating defined by MPAPS A-6 Part II, with coating weight on outer and inner tubing walls assumed to be 60G60GU, unless otherwise spec
29、ified on the drawing. Type F ERW steel tubing made from flat strip steel, then cold formed and welded. Coating consists of three layers: zinc coating, conversion coating, and clear polymer topcoat. Interior tubing surfaces are coated with zinc organic coating for corrosion protection. Type GS coated
30、 tubing similar to Grade F, but with 50% more pure zinc to provide higher corrosion resistance. Interior tubing surfaces are coated with zinc organic coating for corrosion protection. 5.3.1 Base Metal and Strength Requirements Type G - required tubing grade should be specified on the drawing, based
31、on Navistar grades in Table 1 above. Types F or GS - 1008-1010 steel per ASTM A1011 will be supplied unless otherwise specified on drawing. Minimum yield strength to be 50 ksi, tensile strength 55 ksi, and elongation 23%. This type of tubing is also available in a higher strength steel, with minimum
32、 65 ksi yield/70 ksi tensile, but must be specified on the drawing. 5.3.2 Corrosion Resistance When salt spray (fog) tested per ASTM B117, Type F tubing shall withstand min 840 hrs to red rust, and Type GS, 2000 hrs minimum. 5.3.3 Tolerances for Coated Tubing For O.D. up to 1.5 in = 0.005 in Up to 2
33、.0 in = 0.010 in Over 2.0 in = 0.015 in Wall thickness tolerance = 10% nominal 6.0 GENERAL REQUIREMENTS 6.1 Chemical Composition When no steel designation is specified, the plant quality control manager of the originating plant will select the grade of steel from those listed in Tables, III, III-A,
34、IV, and IV-A. Tubing purchased will meet the requirements for chemical composition shown in the latest issue of ASTM A 513. The most commonly used steels are shown in “Appendix General Information.” 6.2 Mechanical Properties 6.2.1 Expected minimum mechanical properties are shown in Tables III, III-A
35、, IV, and IV-A. They can be specified as minimum requirements by the purchaser. NUMBER: MPAPS A-10, PART I TITLE: Mechanical Steel Tubing, Part I Electric Resistance Welded Mechanical Steel Tubing CURRENT ISSUE DATE: JUNE 2015 This document is restricted and may not be sent outside Navistar, Inc. or
36、 reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. JUNE 2015 Page 5 of 26 6.2.2 As-drawn tubing subject to additional cold working after drawing such as bending, upsetting, or ballizing will be ordered stre
37、ss relieved at 800 F (425 C) min. This is the responsibility of the using manufacturing plant. If there is no cold work after drawing, stress relieving is not required unless specified on the engineering drawing. When cold drawn tubing requires hot forming, hot bending, or other thermal treatment, m
38、echanical properties may be significantly reduced. In such cases, the tubing supplier should be consulted. See “Appendix General Information” under “Grades.” 6.2.3 Tensile properties are based on tubing specimens pulled in full section. For longitudinal strip tests, the width of the gage section wil
39、l be 1 inch (25.4 mm) and a deduction of 0.5 percent from the basic minimum elongation for each 0.031 inch (0.79 mm) decrease in wall thickness under 0.312 inch (7.94 mm) in wall thickness will be permitted. 6.2.4 See “Methods of Test,” also “Appendix General Information” for availability of specifi
40、c grades and sizes. NUMBER: MPAPS A-10, PART I TITLE: Mechanical Steel Tubing, Part I Electric Resistance Welded Mechanical Steel Tubing CURRENT ISSUE DATE: JUNE 2015 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Stan
41、dards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. JUNE 2015 Page 6 of 26 TABLE III EXPECTED MINIMUM MECHANICAL PROPERTIES* AS-WELDED AND NORMALIZED TUBING SAE Steel Designation Outside Diameter, Inch Wall Thickness, Inch Yield Strength, psi, min Tensile Strength, p
42、si, min Elongation, * % In 2 Inch, Min Hardness Rockwell B As-Welded Grades H-F, H10, H-5, C-F, C-10, C-5 1008 0.750 and Smaller Over 0.750 Over 0.750 Up to 0.065, incl. Up to 0.083, incl. 0.095 and Heavier 37 000 32 000 30 000 45 000 45 000 42 000 15 15 15 55 55 50 1010 0.750 and Smaller Over 0.750
43、 Over 0.750 Up to 0.065, incl. Up to 0.083, incl. 0.095 and Heavier 40 000 35 000 32 000 48 000 48 000 45 000 15 15 15 58 58 55 1015 0.750 and Smaller Over 0.750 Over 0.750 Up to 0.065, incl. Up to 0.083, incl. 0.095 and Heavier 40 000 36 000 35 000 50 000 48 000 48 000 15 15 15 60 58 58 1020 0.750
44、and Smaller Over 0.750 Over 0.750 Up to 0.065, incl. Up to 0.083, incl. 0.095 and Heavier 40 000 38 000 38 000 55 000 52 000 52 000 12 12 12 65 62 60 1025 0.750 and Smaller Over 0.750 Up to 0.065, incl. All 45 000 40 000 58 000 56 000 12 12 67 65 1026 0.750 and Smaller Over 0.750 Up to 0.065, incl.
45、All 50 000 45 000 65 000 62 000 12 12 74 68 1030 0.750 and Smaller Over 0.750 Up to 0.065, incl. All 50 000 45 000 65 000 62 000 10 10 74 68 Normalized All Grades 1008 0.750 and Smaller Over 0.750 All 24 000 23 000 38 000 38 000 25 30 65 max 65 max 1010 0.750 and Smaller Over 0.750 All 27 000 25 000
46、 45 000 40 000 25 30 65 max 65 max 1015 0.750 and Smaller Over 0.750 All 32 000 30 000 50 000 45 000 25 30 70 max 70 max 1020 0.750 and Smaller Over 0.750 All 35 000 35 000 50 000 50 000 25 30 75 max 75 max 1025 0.750 and Smaller Over 0.750 All 37 000 37 000 55 000 55 000 25 25 80 max 80 max 1026 0.
47、750 and Smaller Over 0.750 All 40 000 40 000 60 000 60 000 25 25 85 max 85 max 1030 0.750 and Smaller Over 0.750 All 40 000 40 000 60 000 60 000 20 25 85 max 85 max * The expected minimum mechanical properties can be specified as minimum requirements by the purchaser. See “Appendix General Informati
48、on,” under “Grades.” * As-welded tubing with 0.028 inch wall thickness and under will have 5% lower elongation than shown. NUMBER: MPAPS A-10, PART I TITLE: Mechanical Steel Tubing, Part I Electric Resistance Welded Mechanical Steel Tubing 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 7 of 26 TABLE III-A EXPECTED M
