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. OCTOBER 2001 Page 1 of 8 NAVISTAR, INC. Material, Parts, and Process Specification
2、s (MPAPS) NUMBER: MPAPS- A-18 Former Designation: CEMS A-18 TITLE: Welded and Seamless Steel Pipe 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
3、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 to use
4、. Change Notice: Reformated as MPAPS; Editorial Changes; Merged with CEMS A-18 Appendix 1.0 APPLICATION Pipe is made in large quantities with a limited variation in wall thickness. Pipe is made with liberal dimensional tolerances with no tolerance specification for the ID. Pipe is generally the lowe
5、st cost tubular product. Navistar specifications covering other steel tubular products used by the Company are as follows: Mechanical Steel Tubing MPAPS A-10 Structural Steel Tubing MPAPS A-38 Fluid Line Steel Tubing MPAPS A-45 2.0 SCOPE This specification covers Navistars requirements for black and
6、 galvanized welded and seamless steel pipe. 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 REFERENCE DOCUMENTS Unless otherwise specified, the latest i
7、ssue 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-13 NAVISTAR Engineering Design Std A-16 NAVISTAR MPAPS B-5
8、0 NAVISTAR MPAPS A-10 PART I ASTM A 120 ASTM A 370 ASTM A 90 ASTM A 53 NUMBER: MPAPS A-18 TITLE Welded and Seamless Steel Pipe 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. Sup
9、pliers are required to assume all patent liability. 2015 by Navistar, Inc. JUNE 2015 Page 2 of 10 4.0 REQUIREMENTS 4.1 Grade Classification Four grades of black and galvanized steel pipe covered by this specification are classified as shown in Table I. TABLE I GRADE CLASSIFICATION Designation * Desc
10、ription * Section and Nominal Size Range International Grade Approximate ASTM 1 A53, Grade A Butt Welded 0.125 to 4 Inch Rounds 2 A53, Grade A Seamless or Electric Welded 2 to 12 Inch Rounds 3 A53, Grade B 4 A36 (Chemistry XS = Extra Strong; XXS = Double Extra Strong. * American National Standards I
11、nstitute (ANSI). NUMBER: MPAPS A-18 TITLE Welded and Seamless Steel Pipe 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. 20
12、15 by Navistar, Inc. JUNE 2015 Page 5 of 10 Hydrostatic Pressure Requirements (Continued) Table IV (Continued) HYDROSTATIC PRESSURE REQUIREMENTS Nominal Size, In. Outside Diameter, In. Wall Thickness, In. Weight * Class ANSI * Schedule Number Test Pressure, psi Grade 1 Grade 2 Grade 3 4 4.500 0.237
13、0.337 0.438 0.531 0.674 Std XS - - XXS 40 80 120 160 - 1200 1700 - - - 1900 2700 2800 2800 2800 2200 2800 2800 2800 2800 5 5.563 0.258 0.375 0.500 0.625 0.750 Std XS - - XXS 40 80 120 160 - - - - - - 1700 2400 2800 2800 2800 1900 2800 2800 2800 2800 6 6.625 0.280 0.432 0.562 0.719 0.864 Std SX - - X
14、XS 40 80 120 160 - - - - - - 1500 2300 2800 2800 2800 1800 2700 2800 280 2800 8 8.625 0.250 0.277 0.322 0.406 0.500 0.594 0.719 0.812 0.875 0.906 - - Std - XS - - - XXS - 20 30 40 60 80 100 120 140 - 160 - - - - - - - - - - 1000 1200 1300 1700 2100 2500 2800 2800 2800 2800 1200 1300 1600 2000 2400 2
15、800 2800 2800 2800 2800 10 10.750 0.250 0.307 0.365 0.500 0.594 0.719 0.844 1.000 1.125 - - Std XS - - - XXS - 20 30 40 60 80 100 120 140 160 - - - - - - - - - 850 1000 1200 1700 2000 2400 2800 2800 2800 1000 1200 1400 2000 2300 2800 2800 2800 2800 12 12.750 0.250 0.330 0.375 0.406 0.500 0.562 0.688
16、 0.844 1.000 1.125 1.312 - - Std - XS - - - XXS - - 20 30 - 40 - 60 80 100 120 140 160 - - - - - - - - - - - 700 950 1100 1100 1400 1600 1900 2400 2800 2800 2800 800 1100 1200 1300 1600 1900 2300 2800 2800 2800 2800 * Std = Standard Weight; XS = Extra Strong; XXS = Double Extra Strong. * American Na
17、tional Standards Institute. NUMBER: MPAPS A-18 TITLE Welded and Seamless Steel Pipe 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 li
18、ability. 2015 by Navistar, Inc. JUNE 2015 Page 6 of 10 4.4.3 Flattening Grades 2 and 3 steel pipe shall conform to the flattening requirements specified in ASTM A-53. 4.5 Dimensional Tolerances Steel pipe purchased to this specification shall conform to the requirements for dimensional tolerances sh
19、own in Tables V, VI, and VII. See ”Methods of Test,” page 7. Pipe is specified to nominal diameter (pipe size) and nominal wall thickness. TABLE V SIZE, WEIGHT, WALL AND LENGTH TOLERANCES FOR ROUND PIPE, ALL GRADES Wall Thickness Tolerances Nominal Diameter Weight, Percent Wall Thickness, Percent Cu
20、t Lengths, In. Up to 1-1/2 Inches, In 2 Inches and Over, Percent Extra Strong And Lighter 1/64 - 1/32 1 5 - 12.5 1/8 Heavier Than Extra Strong 1/64 - 1/32 1 10 - 12.5 1/8 TABLE VI SIZE, OUT-OF-SQUARE, WEIGHT, WALL, AND LENGTH TOLERANCES FOR SQUARE AND RECTAGULAR PIPE*, GRADE 4 Section Size, In., Inc
21、l. Tolerances Variation for Size, In. Out-of-Square, In., Max Weight, Percent Wall Thickness, Percent Cut Lengths, In. Major Axis Minor Axis Square 1-1/2 and Smaller 2 and Larger 1/32 3/64 - - 1/32 1/16 5 - 12.5 1/8 Rectangular 2-1/2 x 1-1/2 3/64 1/32 1/16 * Square and rectangular pipe shall be free
22、 from excessive twist, which would make it unsuitable for the intended application. TABLE VII STRAIGHTNESS TOLERANCES International Grade Section Type Maximum Curvature, In. 1,4 Round Butt Welded 3/4 in 20 Feet 2,3 Round Seamless or Electric Welded 3/16 in 10 Feet 4 Square and Rectangular Butt Welde
23、d 1/8 in Feet NUMBER: MPAPS A-18 TITLE Welded and Seamless Steel Pipe 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
24、by Navistar, Inc. JUNE 2015 Page 7 of 10 5.0 QUALITY Tubing purchased to this specification shall be of uniform quality free from defects detrimental to fabrication or use. All burrs at the ends of the pipe shall be removed. The suppliers should be capable of providing statistical evidence that the
25、material has been manufactured within process control limits established by the supplier for this product and that the process is capable of meeting all requirements of this specification. 5.1 Galvanized Pipe Galvanized pipe shall be coated with zinc inside and outside by the hot dip process and the
26、 coating shall be not less than 2.0 ounces per square foot of total coated surface. The zinc coating shall be free from injurious defects or excessive roughness. See “Methods of Test.” 5.2 Methods of Test 5.2.1 Tensile Test Perform this test in accordance with the applicable portions of ASTM A 370.
27、Determine the yield strength by the 0.2% offset method per ASTM A 370. 5.2.2 Hydrostatic Test Perform the hydrostatic test per ASTM A 53. 5.2.3 Flattening Test Perform the flattening test per ASTM A 53. 5.2.4 Straightness Determine straightness by placing the tube on a surface plate with both ends t
28、ouching the plate; measure the point of maximum deviation from the flat. 5.2.5 Weight of Zinc Coating Determine the zinc coating weight by the method described in ASTM A 90. 6.0 QUALIFICATION Engineering qualification of sources is required in advance of production shipments. Samples shall be accomp
29、anied 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 requirements of this specification will be established by mutual agreement between NAVISTAR and the supplier. Unless specific exception
30、 is noted, the following characteristics, where applicable*, shall be included in the plan as features for management by statistical process control.* * Other characteristics for inclusion in the control plan may be specified on the engineering drawing and/or purchase order. * See NAVISTAR Engineeri
31、ng 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 Requirements. NAVISTAR will also accept TS-16949 registration as long as the supplier can also fulfill all AIAG PPAP (Productio
32、n Part Approval Process) documentation and approval requirements. Suppliers must Wall Thickness NUMBER: MPAPS A-18 TITLE Welded and Seamless Steel Pipe CURRENT ISSUE DATE: June 2015 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate
33、 Technical Standards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. JUNE 2015 Page 8 of 10 maintain their certification with an accredited registrar and must furnish copies of registration certificates to their Corporate Buyer upon request. 7.2 Approval Parts supplied
34、 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 material, properties, processing p
35、ractices, 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, test samples, and new or ame
36、nded 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 results of tests on specific lots of parts produced using ISO 9001 or TS-16949 guidelines,
37、 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 reporting requirements on specif
38、ic 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 appearance of the part. 9.0 DESIGNATION ON DRAWINGS Material designation on drawing
39、s and purchase orders shall consist of the grade and other restrictions, if necessary. Examples: Pipe, Grade 1, Standard Weight, MPAPS A-18 Pipe, Grade 2, Schedule 120, MPAPS A-18 Round Pipe, Grade 4, Extra Strong, MPAPS A-18 Square Pipe, Grade 4, MPAPS A-18 If galvanized pipe is necessary, it may b
40、e specified by adding “galvanized” to the grade designation. Galvanized square and rectangular pipe is not available. 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
41、contacting: Materials Engineering and 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-18 TITLE Welded and Seamless
42、 Steel Pipe 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 9 of 10 A.0 GENERAL INFOR
43、MATION ( Not a requirement) For comparison of pipe with certain other types of tubular products, see “Appendix-General Information,” MPAPS A-10, Part I. A.1 Manufacturing Process Butt welded pipe is produced in continuous lengths from coiled skelp and subsequently cut into individual lengths, having
44、 its longitudinal butt joint forge welded by the mechanical pressure developed in rolling the hot formed skelp through a set of round pass welding rolls. A.1.1 Electric resistance welded pipe is produced in individual lengths or in continuous lengths from coiled skelp and subsequently cut into indiv
45、idual lengths, having a longitudinal butt joint wherein coalescence is produced by the heat obtained from resistance of the pipe to the flow of electric current of which is a part, and by the application of pressure A.1.2 Seamless pipe is manufactured by hot working steel and, if necessary, by subse
46、quently cold finishing the hot worked tubular product to produce the desired shape, dimensions, and properties. A.2 Characteristics and Application Pipe is made in large quantities and to very liberal dimensional tolerances, and is generally the lowest priced tubular product. No tolerances can be sp
47、ecified for the inside diameter, making it unsuitable for telescoping applications. Pipe can be hot bent, cold bent around relatively large radii flattened and otherwise formed. This specification should be used in conjunction with other International tubular specifications, especially MPAPS A-38, w
48、hich is comparable in cost to pipe. A.2.1 Pipe is available in a limited number of wall sizes in comparison with mechanical tubing. Standard weight, extra strong, and double extra strong are the most common weight classes although others are available in large diameter pipes. A.3 Grades A.3.1 Grade 1 Covers black and galvanized
