SAE AMS 6469C pdf download

SAE AMS 6469C pdf download.Steel, Welding Wire 1.75Mn – 0.78Cr – 2.8Ni – 0.85Mo -(0.09-0.12C)vacuum Melted, Environment-Controlled Packaging.
1.1 Form:
This specification covers a low-alloy steel in the form of welding wire.
1.2 Application:
This wire has been used typically as filler metal for gas-tungsten-arc and gas-metal-arc welding of low-alloy steels of similar composition where the weld area is required to have strength and notch- toughness comparable to that of the parent metal without the need for post-weld heat treatment, but usage is not limited to such applications.
1.3 Classification:
Wire shall be classified as follows:
Type 1 – Bare Wire
Type 2- Copper Coated
1.3.1 Type 1 shall be supplied unless Type 2 Is specified.
2. APPLICABLE DOCUMENTS:
The issue of the following documents in effect on the date of the purchase order forms a part of this spedfication 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 2259 Chemical Check Analysis Limits, Wrought Low-Alloy and Carbon Steels 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
AMS 2814 Packaging and Marking of Packages of Welding Wire. Premium Quality
AMS 2816 Identification, Welding Wire, Tab Marking Method
AMS 2819 Identification. Welding Wire, Direct Color Code System
ARP1876 Weldability Test for Weld Filler Metal Wire
ARP4926 Alloy Verification and Chemical Composition Inspection of Welding Wire
2.2 ASTM Publications:
Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 or www.astm.org.
ASTM A 370 MechanIcal Testing of Steel Products
ASTM 0 2650 Chemical Composition of Gases by Mass Spectrometry
ASTM E 350 Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel. Ingot Iron, and Wrought Iron
ASTM E 1742 Radiographic Examination
2.3 U.S. Government Publications:
Available from DODSSP. Subscription Services Desk. Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111.5094.
MIL-S-24371 Steel Plate. Structural, High Yield Strength (HY-130)
3. TECHNICAL REQUIREMENTS:
3.1 Wire Composition:
Shall conform to the percentages by weight shown in Table 1, determined by wei cnemical metnods in accordance with ASTM E 350, by spectrochemical methods, or by other analytical methods acceptable to purchaser.
3.4 Fabrication::
3.4.1 Wire shall be formed from rod or bar descaled by a process which 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 in protective atmosphere to avoid surface oxidation and absorption of other extraneous elements.
3.4.3 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 other alloys processed within 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.
3.4.4 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.
3.4.5 Residual elements and dissolved gases deposited on or absorbed by the wire during processing, that can adversely affect the welding characteristics, the operation of the equipment. o the properties of the weld metal, shall be removed.
3.4.6 When Type 2 copper coated wire is specified, the copper coating shall be clean, bright, and unifoi’m in appearance. A maximum of four discontinuities in any 36-inch (914-mm) length is acceptable provided the exposed wire is dean and bright. The maximum allowable discontinuity size shall be 0.25 inch (6.4 mm) in length. The thickness of the copper coating shall not exceed 0.0005 inch (0.0127 mm) on the diameter.