NAVISTAR MPAPS A-45 PART III-2015 Diesel Injection Tubing.pdf
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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 5 NAVISTAR, INC. Material, Parts, and Process Specifications (
2、MPAPS) NUMBER: MPAPS- A-45, PART III Former Designation CEMS A-45, PART III TITLE: Diesel Injection Tubing CURRENT REV No.: 1506 DATE: June 2015 WRITTEN/EDITED BY: W. Cook APPROVED BY: R. Goluch SUPERSEDES: April 2011 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specifi
3、cation 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 limits prior
4、 to use. Change Notice: MPAPS Format; Editorial Changes 1.0 APPLICATION High pressure diesel fuel injection lines. 2.0 SCOPE Part III of CEMS A-45 covers the requirements for single-wall steel tubing used in the Companys products for high pressure diesel fuel injection lines. Engineering Material Sp
5、ecifications covering other tubular steel products used by the Company are as follows: Mechanical Steel Tubing MPAPS A-10 Welded and Seamless Steel Pipe MPAPS A-18 Structural Steel Tubing MPAPS A-38 2.1 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirement
6、s of this specification 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 standards, specifications and regulations are referenced in this specification. Quali
7、ty 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 370 SAE J1958 NUMBER: MPAPS A-45, PART III TITLE Diesel Injection Tubing CURRENT ISSUE DATE: JUNE 2015 This document is restricted and m
8、ay 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 2 of 5 4.0 REQUIREMENTS 4.1 Grade Classification Diesel injection tubing is produced in two grades w
9、hich are classified as shown in Table 1. TABLE I GRADE CLASSIFICATION Navistar Grade Approx SAE Equivalent Obsolete IH Specifications Description DA J1958 Grade One All drawings specifying MPAPS A-45, Part III, with no other added requirements. Fully annealed, dead soft seamless tubing DH J1958 Grad
10、e Three All drawings specifying MPAPS A-45, Part III, with increased properties equivalent to this grade. Cold drawn seamless tubing annealed to approx half hard temper 4.2 Chemical Composition Tubing purchased to this specification will be made from non-aging steel conforming to the chemical compos
11、ition shown in Table II. TABLE II CHEMICAL COMPOSITION Element Ladle (Heat) Analysis, % Check (Product) Analysis, % Carbon Manganese 0.08-0.13 0.30-0.60 0.06-0.15 0.27-0.63 Phosphorus Sulfur Silicon 0.04 max 0.05 max 0.10 max 0.05 max 0.06 max 0.12 max 4.3 Mechanical Properties Tubing furnished to t
12、his specification will conform to the following mechanical property requirements shown in Table III, unless otherwise specified. See “Methods of Test,” Section 5.3. TABLE III MECHANICAL PROPERTIES Navistar Grade Yield Strength 0.2% Offset, min Tensile Strength, min Elongation in 2 Inches (50mm), %,
13、min Hardness, Rockwell B ksi MPa ksi MPa DA 29 205 44 310 30 65 max DH 51 355 71 490 22 87 max NUMBER: MPAPS A-45, PART III TITLE Diesel Injection Tubing CURRENT ISSUE DATE: JUNE 2015 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corpora
14、te Technical Standards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. JUNE 2015 Page 3 of 5 4.4 Performance Requirements The finished tubing will meet the following requirements when inspected with an unaided eye. See “Methods of Test,” Section 5.3. 4.4.1 Bending The
15、tested sample will show no defect other than superficial outside surface ruptures. ID finish will not deviate from the description specified under “Quality,” Section 5.2. 4.4.2 Upsetting The tested sample will show no defects other than superficial outside surface ruptures. 4.4.3 Dimensional Toleran
16、ces Tubing purchased to this specification will conform to the following tolerances: Outside Diameter : +0.005/- 0.00 inch (+0.13/-0.00 mm) Inside Diameter: 0.0025 inch ( 0.064 mm) 5.0 QUALITY 5.1 Manufacture The tubing will be cold drawn from billets which, after piercing, have had the internal sur
17、face conditioned to remove all hot mill fissures or other defects. After forming, the tubing will be annealed in such a manner as to prevent scale formation on the inside surface and to produce a tube which will meet all requirements of this specification, including being suitable for cold swaging,
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