SAE AMS 6463C pdf download
SAE AMS 6463C pdf download.Wire, Steel Welding 18.5Ni – 8.5Co – 5.2Mo – 0.72Ti -0.10Al Vacuum Melted, Environment Controlled Packaging.
1.1 Form:
This specification covers a maraging steel in the form of welding wire.
1.2 Application:
This wire has been used typically as filler metal for gas-tungsten-arc and inert gas-metal-arc welding of maraging steels requiring a joint capable of being heat treated to 280,000 psi (1931 MPa) tensile strength, but usage is not limited to such applications.
2. APPLICABLE DOCUMENTS:
The issue of the following documents in effect on the date of the purchase order form 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 canceled 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.
AMS 2248 Chemical Check Analysis Limits, Corrosion and Heat Resistant Steels and Alloys. Maraging and Other Highly-Alloyed Steels, and Iron Alloys
AMS 2370 Quality Assurance Sampling and Testing. Carbon and Low-Alloy Steel Wrought Products and Forging Stock
AMS 2813 Packaging and Marking of Packages of Welding Wire. Standard Method
3.1.1 Check Analysis: Composition variations shall meet the requirements of AMS 2248, except that no variation is permitted for oxygen, nitrogen. and hydrogen.
3.1.2 Shall be determined on finished wire.
3.1.3 Chemical analysis of initial ingot. bar, or rod stock before drawing. other than those analyses required to be done on the finished wire, is acceptable provided the processes used for drawing or rolling, annealing, and deaning are controlled to ensure continued conformance to requirements.
3.1.4 The hydrogen content of the wire shall be determined at final diameter In accordance with
ASTM 0 2650.
3.2 Melting Practice:
Steel shall be produced by vacuum induction melting; it may be remelted using consumable electrode vacuum process, but remelting is not required.
3.3 Condition:
Cold worked, bright finish, in a temper which will provide proper feeding of the wire in machine welding equipmenl
3.4 Fabrication:
3.4.1 Wire shall be formed from rod or bar descaled by a process that does not affect the composition of the wire.
3.4.2 In-process annealing, if required between cold rolling or drawing operations, shall be performed in vacuum or protective atmosphere to avoid surface oxidation and absorbtion of other extraneous elements.
3.4.3 Drawing compounds, oxides, dirt, oil, and other foreign materials shall be removed by cleaning processes which will neither result in pitting nor cause gas absorption by the wire or deposition of substances harmful to welding operations.
3.4.4 Butt welding Is permissible provided both ends to be joined are either alloy verified using a method or methods capable of distinguishing the alloy from all others processed in the facility, or the repair is made at the wire processing station. The butt weld shall not interfere with uniform, uninterrupted feeding of the wire in machine welding equipment.
3.4.5 Residual elements and dissolved gasses picked up during wire processing that can adversely affect the welding characteristics, the operation of the equipment, or the properties of the weld metal, shall be removed.
3.5 Properties:
Wire shall conform to the following requirements:
3.5.1 Weldability: Melted wire shall flow smoothly and evenly during welding and shall produce acceptable welds. ARP1876 may be used to resolve disputes
3.5.2 Spooled Wire: Shall confocm to 3.5.2.1 and 3.5.2.2.
3.5.2.1 Cast: Wire, wound on standard 12-inch (305-mm) diameter spools, shall have imparted to it a curvature such that a specimen sufficient in length to form one loop with a 1-inch (25 mm) overlap, when cut from the spool and laid on a flat surface, shall form a circle 15 to 50 inches (381 to 1270 mm) in diameter.
