SAE AMS 6308C:2002 pdf download Steel, Bars and Forgings 0.90Si – 1.0Cr – 2.0Ni – 3.2Mo – 2.0Cu – 0.10V (0.07 – 0.13C) Vacuum Arc or Electroslag Remelted
1. SCOPE:
1.1 Form: This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, and forging stock.
1.2 Application: These products have been used typically for highly-stressed carburized parts requiring high minimum case hardness and subject to very rigid magnetic particle inspection standards, but usage is not limited to such applications. These products are suitable for service up to 450 °F (232 °C).
2. APPLICABLE DOCUMENTS: The issue of the following documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been cancelled and no superseding document has been specified, the last published issue of that document shall apply.
2.1 SAE Publications:
Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001 or www.sae.org.
AMS 2251 Tolerances, Low-Alloy Steel Bars
MAM 2251 Tolerances, Metric, Low-Alloy Steel Bars
AMS 2259 Chemical Check Analysis Limits, Wrought Low-Alloy and Carbon Steels
2.1 (Continued):
AMS 2300 Steel Cleanliness, Premium Aircraft-Quality, Magnetic Particle Inspection Procedure
MAM 2300 Steel Cleanliness, Premium Aircraft-Quality, Magnetic Particle Inspection Procedure,Metric (SI) Measurement
AMS 2370 Quality Assurance Sampling and Testing, Carbon and Low-Alloy Steel Wrought Products and Forging Stock
AMS 2372 Quality Assurance Sampling and Testing, Carbon and Low-Alloy Steel Forgings
AMS 2806 Identification, Bars, Wire, Mechanical Tubing, and Extrusions, Carbon and Alloy Steels and Heat and Corrosion Resistant Steels and Alloys
AMS 2808 Identification, Forgings
AS1182 Standard Machining Allowance, Aircraft-Quality and Premium Aircraft-Quality Steel Bars and Mechanical Tubing
2.2 ASTM Publications:
Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 or
http://www.astm.org.
ASTM A 370 Mechanical Testing of Steel Products
ASTM A 604 Macroetch Testing of Consumable Electrode Remelted Steel Bars and Billets
ASTM E 45 Determining the Inclusion Content of Steel
ASTM E 112 Determining Average Grain Size
ASTM E 350 Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel,Ingot Iron, and Wrought Iron
3. TECHNICAL REQUIREMENTS:
3.1 Composition:
Shall conform to the percentages by weight shown in Table 1, determined by wet chemical methods in accordance with ASTM E 350, by spectrochemical methods, or by other analytical methods acceptable to purchaser.
3.1.1 Check Analysis: Composition variations shall meet the applicable requirements of AMS 2259.
3.2 Melting Practice:
Steel shall be multiple melted using either vacuum arc or electroslag practice in the remelt cycle.
3.3 Condition:
The product shall be supplied in the following condition; hardness and tensile strength shall be determined in accordance with ASTM A 370.
SAE AMS 6308C:2002 pdf download
