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 13 NAVISTAR, INC. Material, Parts, and Process Specifications
2、(MPAPS) NUMBER: MPAPS- A-10, PART III Former Designation: CEMS A-10, PART III TITLE: Seamless Mechanical Steel Tubing 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
3、 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 regulatory
4、 limits prior to use. Change Notice: Reformatted as MPAPS, Editorial Changes, Added Appendix 1.0 APPLICATION This specification is in three parts: Part I - Electric Resistance Welded Mechanical Steel Tubing Part II - Cold Drawn Butt Welded Mechanical Steel Tubing Part III - Seamless Mechanical Steel
5、 Tubing International specifications covering other steel tubular products used by the Company are as follows: Welded and Seamless Steel 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 the requirement for seamless mecha
6、nical tubing used in the Companys products. Unless otherwise specified herein, ASTM A519 shall apply. 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 specification. 3.0 RE
7、FERENCE 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 Standard ISO 9001 or TS-16949 CFR Title 29, Part 1910 NAVISTAR Manufacturing Std. MS-D-
8、13 NAVISTAR Engineering Design Std A-16 NAVISTAR MPAPS B-50 ASTM A370 ASTM A1040 ASTM A519 4.0 REQUIREMEMTS NUMBER: MPAPS A-10, PART III TITLE Seamless Mechanical Steel Tubing CURRENT ISSUE DATE: June 2015 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without p
9、ermission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc JUNE 2015 Page 2 of 17 4.1 Classification Seamless tubing is produced as either hot finished or cold drawn as shown in Table I. Hot finished tubing may be turned or ground to cl
10、oser dimensional tolerances. TABLE I GRADE CLASSIFICATION* International Grade Obsolete Grade Description General Size Availability* Inches Millimeters HR HF Hot Finished 2.0 thru 12.0 OD 0.095 Wall Thickness 51 thru 305 OD 2.41 thru 50.8 Wall Thickness CD - Cold Drawn (Drawn Simultaneously Through
11、a Die and Over a Mandrel 0.125 thru 12.0 OD 0.222 thru 2.0 Wall Thickness 3.18 thru 305 OD 0.56 thru 50. 8 Wall Thickness EBS CDT CDM - - - Any MD Tubing Grade Covered in MPAPS A-10, Parts I, II, and III. Any SD or MD Tubing Grade Covered in MPAPS A-10, Parts I, II, and III. Any MD Tubing Grade Cove
12、red in MPAPSS A-10, Parts I, II, and III * If no grade is specified, Grade CD tubing will be furnished * For specific size availability for each grade, see “Appendix General Information,” MPAPS A-10 Part II. 4.1.1 Permissible Alternates When a certain grade is specified on a drawing, it may be desir
13、able for manufacturing to use another grade. The permissible alternates for each grade are shown in Table II. TABLE II PERMISSIBLE ALTERNATES Specified Grade Permissible Alternates EBS HR CDT CDM CD Any MD Tubing Grade covered in MPAPS A-10, Parts I, II, and III CD Any SD or MD Tubing Grade covered
14、in MPAPS A-10, Parts I, II, and III Any MD Tubing Grade covered in MPAPS A-10, Parts I, II, and III None 4.2 Grades EBS, CDT, and CDM 4.2.1 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
15、 both engineering and manufacturing requirements. See “Dimensional Tolerances” for diameter and wall thickness tolerances and “Appendix General Information” for discussion of these grades. 4.2.2 When a coded grade is specified on the engineering drawing, the selection of the appropriate tubing withi
16、n the code should be made by agreement between supplier and Navistar Engineering. Navistar Engineering should consider 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 sho
17、w only the coded grade. 4.2.3 Outside suppliers furnishing finished parts may consider any tubing grade covered within the coded grade shown on the drawing. NUMBER: MPAPS A-10, PART III TITLE Seamless Mechanical Steel Tubing CURRENT ISSUE DATE: June 2015 This document is restricted and may not be se
18、nt 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 3 of 17 4.2.4 Outside suppliers of semi-finished parts requiring welding, heat treating, or machining in Internat
19、ional plants, must obtain approval of the specific tubing grade and steel from Navistar Engineering 4.3 Chemical Composition When no steel designation is specified, the plant metallurgist of the originating plant will select the grade of steel from those listed in Tables III, IV, or V. Tubing purcha
20、sed to any ASME grade will meet the requirements for chemical composition shown in the latest issue of the AISI Steel Products Manual titled, “Steel Specialty Tubular Products.” The carbon and alloy steels normally used for seamless mechanical tubing are shown in Tables I, II, and III, of “Appendix
21、General Information,” although other carbon and alloy steels can be used. 4.4 Mechanical Properties The expected minimum mechanical properties shown in Tables III, IV, or V can be specified as minimum requirements by the purchaser. Cold drawn seamless tubing subject to additional cold working after
22、drawing such as bending, upsetting, or ballizing will be ordered stress relieved. This is the responsibility of the using manufacturing plant. Stress relieving will be done at 800 to 1000 F (425 to 540 C). If there is no cold working after drawing, stress relieving is not required unless specified o
23、n the engineering drawing. Other thermal treatments such as annealing or normalizing may be specified where desired. When no heat-treating is specified for cold drawn seamless tubing, it will be furnished unannealed. See “Designation on Drawings and Purchase Orders” or “Appendix- General Information
24、”. TABLE III HOT FINISHED TUBING EXPECTED MINIMUM MECHANICAL PROPERTIES SAE Steel Designation Yield Strength Tensile Strength Elongation Percent in 2 Inches (50 mm) Hardness, Rockwell B psi MPa psi MPa 1010 1015 1018 1020 1025 30 000 30 000 35 000 32 000 35 000 207 207 241 221 241 47 000 48 000 55 0
25、00 50 000 55 000 324 331 379 345 379 30 28 25 25 25 54 55 60 57 60 1026 1030 1035 1040 1045 35 000 37 000 40 000 42 000 45 000 241 255 276 290 310 60 000 60 000 65 000 70 000 75 000 414 414 448 483 517 22 22 20 17 15 67 68 72 77 80 1050 1118 1137 1141 1145 50 000 35 000 40 000 50 000 45 000 345 241
26、276 345 310 80 000 50 000 70 000 80 000 75 000 552 345 483 552 517 10 25 20 10 15 85 55 75 85 80 TABLE IV COLD DRAWN, UNANNEALED OR STRESS RELIEVED AT 800 TO 1000 F (425 to 540 C) TUBING* NUMBER: MPAPS A-10, PART III TITLE Seamless Mechanical Steel Tubing CURRENT ISSUE DATE: June 2015 This document
27、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 17 EXPECTED MINIMUM MECHANICAL PROPERTIES SAE Steel Desig- Nation Wall Thickn
28、ess incl Yield Strength Tensile Strength Elongation Percent in 2 inches (50 mm) Hardness, Rockwell B inches millimeters Psi MPa psi MPa 1010 0.500 and Under Over 0.500 12.70 and Under Over 12.70 50 000 40 000 345 276 65 000 55 000 448 379 6 12 73 63 1015 0.500 and Under Over 0.500 12.70 and Under Ov
29、er 12.70 55 000 45 000 379 310 67 000 58 000 462 400 6 12 75 68 1018 0.500 and Under Over 0.500 12.70 and Under Over 12.70 65 000 55 000 448 279 75 000 68 000 517 469 5 8 80 75 1020 0.500 and Under Over 0.500 12.70 and Under Over 12.70 60 000 50 000 414 345 70 000 65 000 483 448 5 10 75 72 1025 0.50
30、0 and Under Over 0.500 12.70 and Under Over 12.70 65 000 55 000 448 279 75 000 68 000 517 483 5 8 80 75 1026 0.500 and Under Over 0.500 12.70 and Under Over 12.70 68 000 57 000 469 393 78 000 70 000 538 483 5 8 83 76 1030 0.500 and Under Over 0.500 12.70 and Under Over 12.70 70 000 60 000 483 414 80
31、 000 72 000 552 496 5 8 84 79 1035 0.500 and Under Over 0.500 12.70 and Under Over 12.70 75 000 65 000 517 448 85 000 75 000 586 517 5 8 88 80 1040 0.500 and Under Over 0.500 12.70 and Under Over 12.70 78 000 67 000 538 462 88 000 77 000 607 531 5 7 89 84 1045 0.500 and Under Over 0.500 12.70 and Un
32、der Over 12.70 80 000 70 000 552 483 90 000 80 000 621 552 5 8 90 85 1050 0.500 and Under Over 0.500 12.70 and Under Over 12.70 85 000 70 000 586 483 100 000 82 000 689 565 5 6 95 86 1118 0.500 and Under Over 0.500 12.70 and Under Over 12.70 60 000 55 000 414 379 75 000 70 000 517 483 5 8 80 75 11L1
33、7, 11L18, 12L14, 1215 0.400 and Under 10.16 and Under 55 000 379 67 000 462 6 75 1137 0.500 and Under Over 0.500 12.70 and Under Over 12.70 78 000 60 000 538 414 88 000 75 000 607 517 5 8 89 80 1141 0.500 and Under Over 0.500 12.70 and Under Over 12.70 80 000 65 000 552 448 90 000 85 000 621 586 5 7
34、 90 88 1144 0.400 and Under 10.16 and Under 90 000 621 105 000 724 8 95 1145 0.500 and Under Over 0.500 12.70 and Under Over 12.70 80 000 65 000 552 448 90 000 85 000 621 586 5 7 90 88 * Tubing listed from 1035 to 1145, inclusive, should into be specified unannealed. When added cold work is to be pe
35、rformed such as bending, expanding, etc., thermal treatment may be required which may reduce mechanical properties. In such cases, the supplier should be consulted. NUMBER: MPAPS A-10, PART III TITLE Seamless Mechanical Steel Tubing CURRENT ISSUE DATE: June 2015 This document is restricted and may n
36、ot 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 17 TABLE V COLD DRAWN TUBING, EXPECTED MINIMUM MECHANICAL PROPERTIES SAE Steel Desig- Nation Yield S
37、trength Tensile Strength Elongation Percent in 2 inches (50 mm) Hardness, Rockwell B psi MPa psi MPa Soft Annealed 1010 1015 1018 1020 1025 26 000 27 000 30 000 28 000 30 000 179 186 207 193 207 44 000 46 000 50 000 48 000 53 000 303 317 345 331 365 32 31 25 30 25 50 50 55 50 57 1026 1030 1035 1040
38、1045 31 000 32 000 33 000 34 000 35 000 214 221 228 234 241 56 000 56 000 60 000 62 000 65 000 386 386 414 427 448 25 25 25 23 20 62 65 67 70 72 1050 1118 1137 1141 1145 38 000 30 000 35 000 38 000 35 000 262 207 241 262 241 68 000 50 000 65 000 68 000 65 000 469 345 448 469 448 18 25 22 18 20 74 55
39、 72 74 72 Normalized 1010 1015 1018 1020 1025 30 000 32 000 35 000 34 000 36 000 207 221 241 234 248 47 000 51 000 55 000 55 000 55 000 324 352 379 379 379 32 27 22 22 22 54 59 60 60 60 1026 1030 1035 1040 1045 36 000 38 000 40 000 44 000 48 000 248 262 276 303 331 60 000 60 000 65 000 70 000 75 000
40、 414 414 448 483 517 21 21 20 17 15 67 68 72 77 80 1050 1118 1137 1141 1145 50 000 35 000 43 000 50 000 48 000 345 241 296 345 331 78 000 55 000 70 000 78 000 75 000 538 379 483 538 517 12 20 15 12 15 82 60 75 82 80 4.4.1 Hydraulic Cylinder Tubing This tubing is intended for us in hydraulic cylinder
41、s subjected to high pressure and where assembly welding is involved. Grade CD will be used for this tubing made from 1015 through 1026 steel unless otherwise specified. All tubing subject to cold working after drawing such as ballizing will be ordered stress relieved. This is the responsibility of t
42、he using manufacturing plant. Stress relieving will be done at 800 to 1000 F (425 TO 540 C) in a controlled atmosphere. If there is no cold work after drawing, stress relieving is not required. Tubing should be purchased unannealed wherever possible. Tubing surfaces will be free from all blue or bla
43、ck oxides or any surface condition which might interfere with welding. NUMBER: MPAPS A-10, PART III TITLE Seamless 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 St
44、andards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc JUNE 2015 Page 6 of 17 4.5 Dimensional Tolerances Tubing purchased to this specification will conform to the requirements for dimensional tolerances shown in the following tables. Dimensions of cold drawn seamless
45、mechanical tubing may be specified by any two of the three following dimensions: outside diameter, inside diameter, or wall thickness, but it is preferable to specify outside and inside diameters. Hot rolled tubing will be specified to outside diameter and wall thickness. The outside diameter tolera
46、nces in Tables VI, VII, and VIIA will be used in conjunction with the appropriate wall thickness tolerances in Table VIII when tubing is specified to OD and wall thickness. Cold drawn tubing may be ordered to OD and ID in which case only the diameter tolerances in Table VII and VIIA apply. TABLE VI
47、HOT ROLLED TUBING OUTSIDE DIAMETER TOLERANCES, PLUS OR MINUS Outside Diameter, incl. As Rolled or Annealed Oil Quenched and Tempered Water Quenched and Tempered in mm in mm in mm in Mm up to 1.999 2.000 to 2.499 2.500 to 2.999 3.000 to 3.499 3.500 to 3.999 4.000 to 4.499 up to 50.77 50.80 to 63.47 6
48、3.50 to 76.17 76.20 to 88.87 88.90 to 101.57 101.60 to 114.27 0.015 0.017 0.019 0.021 0.023 0.025 0.38 0.43 0.48 0.53 0.58 0.64 0.025 0.027 0.029 0.032 0.035 0.038 0.64 0.68 0.74 0.81 0.90 0.96 0.037 0.040 0.043 0.047 0.051 0.055 0.94 1.01 1.09 1.19 1.30 1.40 4.500 to 4.999 5.000 to 5.499 5.500 to 5.999 6.000 to 6.499 6.500 to 6.999 7.000 to 7.499 114.30 to 126.97 127.00 to 139.67 139.70 to 152.37 152.40 to 16
