DLA MIL-S-46850 D-1991 STEEL BAR PLATE SHEET STRIP FORGINGS AND EXTRUSIONS 18 PERCENT NICKEL ALLOY MARAGING 200 KSI 250 KSI 300 KSI AND 350 KSI HIGH QUALITY《高质量每平方英寸200 250 300和350.pdf
《DLA MIL-S-46850 D-1991 STEEL BAR PLATE SHEET STRIP FORGINGS AND EXTRUSIONS 18 PERCENT NICKEL ALLOY MARAGING 200 KSI 250 KSI 300 KSI AND 350 KSI HIGH QUALITY《高质量每平方英寸200 250 300和350.pdf》由会员分享,可在线阅读,更多相关《DLA MIL-S-46850 D-1991 STEEL BAR PLATE SHEET STRIP FORGINGS AND EXTRUSIONS 18 PERCENT NICKEL ALLOY MARAGING 200 KSI 250 KSI 300 KSI AND 350 KSI HIGH QUALITY《高质量每平方英寸200 250 300和350.pdf(16页珍藏版)》请在麦多课文档分享上搜索。
1、I INCH - POUND I MIL-S-46850D 22 March 1991 SUPERSEDING MIL-S-46850C (MI) 30 September 1986 MILITARY SPECIFICATION STEEL: BAR, PLATE, SHEET, STRIP, FORGINGS, AND EXTRUSIONS, 18 PERCENT NICKEL ALLOY, MARAGING, 200 KSI, 250 KSI, 300 KSI, AND 350 KSI, HIGH QUALITY This specification is approved for use
2、 by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers steel bars, plate, sheet, strip, forgings and extrusions containing 18 percent nickel and capable of attaining high ultimate tensile properties by means of a relatively low temperature heat t
3、reating process. 1.2 Classification. The steels covered in this specification are classified by type and grade as follows (see 3.1 and 6.2). Type Type I - Air arc melted (AM) steel. This steel shall be produced by basic air melting. Type II - Vacuum degassed (W) steel. This steel shall be produced b
4、y the vacuum degassing process. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, U.S. Army Missile Command, ATTN: AMSMI-RD-SE-TD- ST, Redstone Arsenal, AL 35898-5270 by using the Stand
5、ardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 9515 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IH
6、S-,-,-MIL-S-46850D Type III - Vacuum arc remelt (VAR) steel. This steel shall be produced by multiple melting using the vacuum consumable electrode process in the final remelt cycle. (VIM/VAR). This steel shall be produced by multiple melting using the vacuum induction melt to make the vacuum arc co
7、nsumable electrode for the final remelt cycle. Type IV - Vacuum induction melt, vacuum arc remelt The specific grades of mill product covered by this specification are as follows : Grade 200 -200 ksi nominal tensile strength 250 -250 ksi nominal tensile strength 300 -300 ksi nominal tensile strength
8、 300A -300 ksi nominal tensile strength 350 -350 ksi nominal tensile strength NOTE: ksi = 1000 pounds per square inch 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document
9、to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2) . STANDARD S FEDERAL FED-STD-48 FED-STD-151
10、FED-STD-183 MILITARY MIL-STD-129 MIL-STD-163 Tolerances for Steel Wrought Products, and for Centrifugally Cast Steel Metals: Test Methods Continuous Identification Marking of Iron and Steel Products Marking for Shipment and Storage Steel Mill Products Preparation for Shipment and Storage 2 Provided
11、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-46850D MIL-STD-414 - Sampling Procedures and Tables for Inspection by Variables for Percent Defective (Unless otherwise indicated, copies of the federal and military specifications, standards, and handbook
12、s are available from the Naval Publications and Forms Center, Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Ave., Philadelphia, PA 19111-5094.) 2.2 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specifi
13、ed, the issues of the documents which are DoD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN SOCIETY FOR TESTING
14、AND MATERIALS (ASTM) ASTM A 700 ASTM E 8 ASTM E 10 ASTM E 18 ASTM E 23 ASTM E 45 ASTM E 92 ASTM E 112 ASTM E 140 ASTM E 381 ASTM E 399 - Packaging, Marking, and Loading Methods for Steel Products for Domestic Shipment, Standard Practices for (Metric), Standard Test Methods for Standard Test Method f
15、or Hardness of Metallic Materials, Standard Test Methods for Materials, Standard Test Methods for Steel, Standard Practice for Standard Test Methods for Test Methods for Metals Steel Products, Comprising Bars, Billets, Blooms, and Forgings, Standard Method of Metallic Materials, Standard Test Method
16、 of - Tension Testing of Metallic Materials - Brinell Hardness of Metallic Materials, - Rockwell Hardness and Rockwell Superficial - Notched Bar Impact Testing of Metallic - Determining the Inclusion Content of - Vickers Hardness of Metallic Materials, - Determining Average Grain Size, Standard - St
17、andard Hardness Conversion Tables for - Macroetch Testing, Inspection, and Rating - Plane-Strain Fracture Toughness of (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) 3 Provided by IHSNot for ResaleNo reproduct
18、ion or networking permitted without license from IHS-,-,-MIL-S-46850D AEROSPACE MATERIAL SPECIFICATIONS (AMs) AMs 2300 - Premium Aircraft - Quality Steel Cleanliness - Magnetic Particle Inspection Procedure AMs 2310 - Qualification Sampling of Steels, AMs 2808 - Identification, Forgings Transverse T
19、ensile Properties (Application for copies should be addressed to the Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096.) (Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These document
20、s also may be available in or through libraries or other informational services.) 2.3 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicabl
21、e laws and regulations unless a specific exemption has been obtained. 3. PiEQUIREMENTS 3.1 Material (see 1.2). Mill products shall be manufactured by the air arc melted (AM) process, vacuum degassed (W) process, vacuum arc remelt (VAR) process, or the Vacuum Induction Melt, Vacuum Arc Remelt (VIM/VA
22、R) process as specified. Sufficient discard shall be taken from each ingot to insure freedom from piping and undue segregation. 3.2 Material conditions. Unless otherwise specified, the material shall be furnished in the solution-annealed (A), descaled, and oiled condition. Solution annealing shall b
23、e accomplished by heating at 816 5 5OC for 1 hour per inch of thickness, followed by air cooling to room temperature (see 6.4) . If required (see 6.2), the surface condition shall be (1) as forged or rolled, (2) pickled, (3) ground or blast cleaned, (4) cold finished or (5) ground and polished. 3.3
24、Chemical composition. 3.3.1 Chemical composition (percent by weight). The chemical composition of bar, plate, sheet, strip, forgings and extrusions shall be as specified in table I. Individual determinations may vary from the specified range to the extent shown in the product analysis column except
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