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. 2016 by Navistar, Inc. JUNE 2016 Page 1 of 15 NAVISTAR, INC. Material, Parts, and Process Specifications
2、 (MPAPS) NUMBER: MPAPS A-0 PART I Former Designation: CEMS A-0 PART I, SEC. A TITLE: Chemical Composition of Standard Steels Part I CURRENT REV. No.: 1606 DATE: June 2016 WRITTEN/REVIEWED BY: W. Cook APPROVED BY: R. Goluch SUPERSEDES: Rev. 1512 Dec. 2015 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIF
3、IED 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 and to determine the app
4、licability of regulatory limits prior to use. 1.0 APPLICATION SAE wrought steels in general use by the Corporation when specified as raw materials for manufactured parts, including forged products. MPAPS A-0 consists of three major sections: Part I Chemical Composition of Standard Steels Part II Sys
5、tem of Steel Classification for Standard Steels Part III Classification System for Heat Treated Steels 2.0 SCOPE This specification describes requirements for chemical composition of common wrought steel grades, including residual element restrictions, and steel quality and cleanliness requirements.
6、 Ferrous castings are not to be considered an acceptable alternate for steel specified to this specification. If ferrous cast products are desired, they must be specified as such on the drawing per the applicable casting specification (refer to MPAPS/CEMS Section E for cast product specifications, s
7、uch as steel castings, ductile iron, gray iron, etc.). Requirements for specific types of wrought steel products such as bar, structural shapes, sheet/strip/plate, and tubing, are shown in the individual Navistar specifications, examples of which are shown below: Low Carbon Steel and HSLA Flat Rolle
8、d Products up to in. thick MPAPS A-6 Steel Wire MPAPS A-8 Steel Spring Wire MPAPS A-9 Mechanical Steel Tubing MPAPS A-10 High Strength Low Alloy Steel (HSLA) (over in. thick) MPAPS A-43 Heat Treated Constructional Steels MPAPS A-44 Welded and Seamless Steel Pipe MPAPS A-18 Automotive Steel Tubing MP
9、APS A-45 Stainless/Heat Resistant Steels and Finish Requirements MPAPS A-37 NUMBER: MPAPS A-0 PART I TITLE: Chemical Composition of Standard Steels REVISION: 1606 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standard
10、s. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. JUNE 2016 Page 2 of 15 2.1 NOTE: 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
11、. 3.0 CONTENTS CARBON STEELS FOR BARS, RODS, WIRE AND SEMIFINISHED PRODUCTS Group 1 - Carbon Steel (10XX) 4 Group 2 - High Manganese Carbon Steel (15XX) 5 Group 3 - High Manganese Boron Carbon Steel (15BXX) 5 Group 4 - Hot Rolled Bars, Merchant Quality (M10XX) 6 Group 5 - Resulfurized Carbon Steel (
12、11XX) 6 Group 6 - Rephosphorized, Resulfurized and/or Leaded Carbon 7 CARBON STEELS FOR STRUCTURAL SHAPES, PLATE, SHEET AND STRIP Group 7 - Carbon Steel (SAE 10XX) 7 ALLOY STEELS Group 8 - Manganese (13XX) 7 Group 9 - Molybdenum (40XX) . 7 Group 10 - Chromium Molybdenum (41XX, PS 54, PS 54H) 8 Group
13、 11 - Nickel Chromium Molybdenum (43XX, 47XX) 8 Group 12 - Nickel Molybdenum (46XX, 48XX) 8 Group 13 - Chromium (51XX, E 52100) 9 Group 14 - Nickel Chromium Molybdenum (86XX, 87XX, 88XX) and Manganese Chromium Molybdenum 9 Group 15 - Alloy Boron 10 Group 16 - Specialty Tool Steels 10 BEARING QUALITY
14、 STEELS 10 STEEL QUALITY 10 STRAND-CAST STEEL USAGE 11 METHODS OF TEST 12 DESIGNATION ON DRAWINGS 12 4.0 REFERENCE DOCUMENTS Unless otherwise specified, the latest issue of all referenced standards shall apply. The following standards, specifications and regulations are referenced in this specificat
15、ion. Quality System Standard ISO 9001 or TS-16949 CFR Title 29, Part 1910 ASTM A 751 NAVISTAR Manufacturing Standard MS-D-13 ASTM A 29 SAE J1081 NAVISTAR MPAPS B-50 ASTM E 45 SAE J1249 NAVISTAR MPAPS AT-2 ASTM E 112 SAE J422 NAVISTAR MPAPS A-6 ASTM A 568 SAE J421 ASTM A 534 ASTM A 295 SAE J1268 SAE
16、J437a SAE J403 SAE J404 NUMBER: MPAPS A-0 PART I TITLE: Chemical Composition of Standard Steels REVISION: 1606 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 liabi
17、lity. 2016 by Navistar, Inc. JUNE 2016 Page 3 of 15 SAE J438b 5.0 GENERAL NOTES APPLICABLE TO COMPOSITION 5.1 Restrictive Requirement Quality Restriction of one specified element to a chemistry range closer than the standard range is obtainable at an extra cost. Restriction of more than one element
18、is subject to negotiation with the steel producer. 5.2 Residual Elements Small quantities of certain elements, which are not specified or required, are present in steel. These elements are considered as incidental or residual. 5.2.1 Alloy Steels: Unless otherwise specified, the following maximum lim
19、its on residual elements are permissible for all alloy steels. Ni 0.25%, Cr 0.20%, Mo 0.06%, Cu 0.35%. 5.2.2 Carbon Steels: Max limits on residual elements are not applicable to carbon steels except as follows: 5.2.2.1 When special restrictions on residual elements are needed for end use, they must
20、be negotiated with the steel producer. 5.2.2.2 When restrictive requirement quality steel is ordered, the following maximum limits on residual elements are permissible for carbon steels: Ni 0.10%, Cr 0.07%, Mo 0.04%, Cu 0.10%. 5.3 Silicon Content Unless otherwise specified, maximum silicon content w
21、ill be 0.35%. When silicon is required, the following ranges and limits are commonly used: 0.10% max, 0.07-0.15%, 0.10-0.20%, 0.15-0.35, 0.20-0.40%, 0.30-0.60%. When the end use requires a coarse grain steel, a maximum silicon content of 0.10%, or range of 0.10-0.20% should be specified. 5.4 Aluminu
22、m Content Unless otherwise specified, aluminum-killed fine grain steel will contain min 0.02% Al. 5.5 Sulfur Content Unless otherwise specified, maximum sulfur content will be 0.05% for all carbons steels and 0.04% for all alloy steels. Where special steel cleanliness is required, lower sulfur conte
23、nts may be negotiated with the steel supplier. Minimum sulfur content aims will 0.015% for steels with less than 0.30% nominal carbon and 0.02% for steels with 0.30% and over nominal carbon. When special practice requiring low sulfur additions are specified, the sulfur content range will be 0.04-0.0
24、7%. These limitations are not applicable to conventional resulfurized steels. 5.6 Phosphorus Content Unless otherwise specified, maximum phosphorus content will be 0.035% for all carbon steels and 0.03% for all alloy steels. 5.7 “E”Electric Furnace Steel Practice This steel practice may be specified
25、 for any standard alloy steel grade by using the prefix letter “E” with the SAE alloy designation or the suffix (6) in the UNS system. The use of this special steel practice generally involves an extra cost. Phosphorus and sulfur content each will be 0.025% maximum when the practice is specified. 5.
26、8 “H” Steels These are steels made to guaranteed hardenability specifications. The permissible variation in content of individual elements is greater than that of the standard steels specified by chemical composition only. However, closer control of the total content of all hardening elements, inclu
27、ding residual elements (and boron content), is required to assure that any given heat of steel will be within the hardenability limits NUMBER: MPAPS A-0 PART I TITLE: Chemical Composition of Standard Steels REVISION: 1606 This document is restricted and may not be sent outside Navistar, Inc. or repr
28、oduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2016 by Navistar, Inc. JUNE 2016 Page 4 of 15 specified for that steel grade. All “H” steels covered herein will be made to fine grain practice (SAE J1268). 5.9 Austenitic Grain Size
29、Austenitic grain size will be 5 or finer as determined by McQuaid-Ehn, MPAPS Test Method AT-2 or other suitable tests. Occasional grains as large as 3 are permissible. In the event of controversy, the McQuaid-Ehn test per ASTM E 112, Appendix III, will be the referee method. 6.0 CLASSIFICATION BY CH
30、EMICAL COMPOSITION 6.1 CARBON STEELS FOR BARS, RODS, WIRE, AND SEMIFINISHED PRODUCTS 6.1.1 GROUP 1 CARBON STEEL Designation Chemical Composition (%)* Designation Chemical Composition, (%)* UNS No. SAE J403 Carbon Manganese UNS No. SAE J403 Carbon Manganese G10060 1006 0.08 max 0.25-0.40 G10400 1040
31、0.37-0.44 0.60-0.90 G10080 1008 0.10 max 0.30-0.50 G10420 1042 0.40-0.47 0.60-0.90 G10090 1009 0.15 max 0.60 max G10430 1043 0.40-0.47 0.70-1.00 G10100 1010 0.08-0.13 0.30-0.60 G10440 1044 0.43-0.50 0.30-0.60 G10120 1012 0.10-0.15 0.30-0.60 G10450 1045* 0.43-0.50 0.60-0.90 G10130 1013 0.11-0.16 0.30
32、-0.60 G10460 1046 0.43-0.50 0.70-1.00 G10150 1015 0.13-0.18 0.30-0.60 G10490 1049 0.46-0.53 0.60-0.90 G10160 1016 0.13-0.18 0.60-0.90 G10500 1050 0.48-0.55 0.60-0.90 G10170 1017 0.15-0.20 0.30-0.60 G10530 1053 0.48-0.55 0.70-1.00 G10180 1018 0.15-0.20 0.60-0.90 G10550 1055 0.50-0.60 0.60-0.90 G10200
33、 1020 0.18-0.23 0.30-0.60 G10600 1060 0.55-0.65 0.60-0.90 G10210 1021 0.18-0.23 0.60-0.90 G10650 1065 0.60-0.70 0.60-0.90 G10220 1022 0.18-0.23 0.70-1.00 G10700 1070 0.65-0.75 0.60-0.90 G10230 1023 0.20-0.25 0.30-0.60 G10740 1074 0.70-0.80 0.50-0.80 G10250 1025 0.22-0.28 0.30-0.60 G10750 1075 0.70-0
34、.80 0.40-0.70 G10260 1026 0.22-0.28 0.60-0.90 G10780 1078 0.72-0.85 0.30-0.60 G10290 1029 0.25-0.31 0.60-0.90 G10800 1080 0.75-0.88 0.60-0.90 G10300 1030 0.28-0.34 0.60-090 G10840 1084 0.80-0.93 0.60-0.90 G10330 1033 0.30-0.36 0.70-1.00 G10850 1085 0.80-0.93 0.70-1.00 G10350 1035 0.32-0.38 0.60-0.90
35、 G10860 1086 0.80-0.93 0.30-0.50 G10370 1037 0.32-0.38 0.70-1.00 G10900 1090 0.85-0.98 0.60-0.90 G10380 1038* 0.35-0.42 0.60-0.90 G10950 1095 0.90-1.03 0.30-0.50 G10390 1039 0.37-0.44 0.70-1.00 * See General Notes, page 3. Where no silicon is specified, a semikilled rimmed, or capped steel may be su
36、pplied at the producers option. Where a rimmed or capped steel is desired, it should be shown on the order and will require special quality. * Can be specified as an “H“ steel by adding the suffix “H” to the SAE designation or replacing the prefix “G” with an “H” in the UNS designation. See SAE J126
37、8 for requirements. NUMBER: MPAPS A-0 PART I TITLE: Chemical Composition of Standard Steels REVISION: 1606 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
38、. 2016 by Navistar, Inc. JUNE 2016 Page 5 of 15 6.1.2 GROUP 2 HIGH MANGANESE CARBON STEEL Designation Chemical Composition, %* UNS No. SAE J403 Carbon Manganese G15150 1515 0.13-0.18 1.10-1.40 G15210 1521 0.18-0.23 1.10-1.40 G15220 1522 * 0.18-0.24 1.10-1.40 G15240 1524 * 0.19-0.25 1.35-1.65 G15260
39、1526 * 0.22-0.29 1.10-1.40 G15270 1527 0.22-0.29 1.20-1.50 G15360 1536 0.30-0.37 1.20-1.50 G15410 1541 * 0.36-0.44 1.35-1.65 G15470 1547 0.43-0.51 1.35-1.65 G15480 1548 0.44-0.52 1.10-1.40 G15520 1552 0.47-0.55 1.20-1.50 G15660 1566 0.60-0.71 0.85-1.15 * See General Notes, page 3. * Can be specified
40、 as an “H” steel by adding the suffix “H” to the SAE designation or replacing the prefix “G” with an “H” in the UNS designation. Refer to SAE J1268 for requirements. 6.1.3 GROUP 3 - HIGH MANGANESE BORON CARBON STEEL Designation Chemical Composition, %* UNS No. SAE J1268 Navistar Special Carbon Manga
41、nese Silicon Boron H15211 15B21H - 0.17-0.24 0.70-1.20 0.15-0.35 0.0005-0.003 H15281 15B28H 0.25-0.34 1.00-1.50 0.15-0.35 0.0005-0.003 H15301 15B30H 0.24-0.35 0.70-1.20 0.15-0.35 0.0005-0.003 H15351 15B35H - 0.31-0.39 0.70-1.20 0.15-0.35 0.0005-0.003 H15371 15B37H - 0.30-0.39 1.00-1.50 0.15-0.35 0.0
42、005-0.003 H15411 15B41H - 0.35-0.45 1.25-1.75 0.15-0.35 0.0005-0.003 H15481 15B48H 0.43-0.53 1.00-1.50 0.15-0.35 0.0005-0.003 H15621 15B62H - 0.54-0.67 1.00-1.50 0.40-0.60 0.0005-0.003 * See General Notes, page 3. NUMBER: MPAPS A-0 PART I TITLE: Chemical Composition of Standard Steels REVISION: 1606
43、 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. 2016 by Navistar, Inc. JUNE 2016 Page 6 of 15 6.1.4 GROUP 4 - HOT ROLLED BARS, MERCHANT QUALITY SAE Desi
44、gnation Chemical Composition, % Carbon* SAE Designation Chemical Composition, % Carbon* M1008 0.10 max M1023 0.19-0.27 M1010 0.07-0.14 M1025 0.20-0.30 M1012 0.09-0.16 M1031 0.26-0.36 M1017 0.14-0.21 M1044 0.40-0.50 M1020 0.17-0.24 6.1.5 GROUP 5 RESULFURIZED (FREE-CUTTING) CARBON STEEL Designation Ch
45、emical Composition, %* UNS No. SAE J403 Carbon Manganese Phosphorus, max Sulfur G11170 1117 0.14-0.20 1.00-1.30 0.030 0.08-0.13 G11180 1118 0.14-0.20 1.30-1.60 0.030 0.08-0.13 G11260 1126 0.23-0.29 0.70-1.00 0.030 0.08-0.13 G11320 1132 0.27-0.34 1.35-1.65 0.030 0.08-0.13 G11370 1137 0.32-0.39 1.35-1
46、.65 0.030 0.08-0.13 G11380 1138 0.34-0.40 0.70-1.00 0.030 0.08-0.13 G11400 1140 0.37-0.44 0.70-1.00 0.030 0.08-0.13 G11410 1141 0.37-0.45 1.35-1.65 0.030 0.08-0.13 G11440 1144 0.40-0.48 1.35-1.65 0.030 0.24-0.33 G11460 1146 0.42-0.49 0.70-1.00 0.030 0.08-0.13 G11510 1151 0.48-0.55 0.70-0.90 0.030 0.
47、08-0.13 * See General Notes, page 3. All steels in Group 5 are killed. NUMBER: MPAPS A-0 PART I TITLE: Chemical Composition of Standard Steels REVISION: 1606 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. 2016 by Navistar, Inc. JUNE 2016
