AWS C2.25/C2.25M pdf free download
AWS C2.25/C2.25M pdf free download.Thermal Spray Feedstock- Wire and Rods.
3. Terms and Definitions
AWS A3.OM/A3.O. Standard Welding Ternis and Definitions, Including Terms ftr Adhesive Bonding, Bracing, Soldering, Thermal GuUiig, and Thermal Spraying, provides the basis for terms and definitions used herein.
4. Basis of Classification
4.1 The thermal spray feedstock solid and composite wires, and ceramic rods in this specification are classified using a system that is independent of U.S. Customary Units and the International System of Units (SI). The classification is according to chemical composition of the thermal spray material as specified in Tables 1 through 4. Table I lists the chemical composition of solid ferrous wires. Table 2 lists the chemical composition of solid nonferrous wires. Table 3 lists the chemical composition of the mixture of the sheath and core material of composite wires. Table 4 lists the chemical composition of ceramic rods.
4.2 The system for classifying the thermal spray feedstock under this AWS standard is using W, CW, and CR as the prefix designation for solid alloy and solid composite wires, cored composite wires, and ceramic rods, respectively, followed by the chemical composition in decreasing percentage order (see Figure 1).
4.3 Thermal spray solid and composite wires and ceramic rods classified under one classification shall not be classified under any other classification in this specification.
5. Certification
5.1 The act of placing the C2.25/C2.25M specification and classification designations on the packaging enclosing the product, or the classification on the product itself, constitutes the supplier’s (manufacturer’s) certification that the product nicets all of the requirements of the specification.
5.2 The only testing requirement implicit in this “certification” is that the manufacturer has actually conducted the tests required by the specification on material that is representative of that being shipped and that material met the requirements of the specification. Representative material, in this case, is material from any production run of that classification using the same formulation. “Certification” is not construed to mean that tests of any kind were necessarily conducted on samples of the specific material shipped. Tests on such material may or may not have been conducted. The basis for the “certification” required by the specification is the classification test of “representative material” cited above, and the “Manufacturer’s Quality Assurance Program.”
5.3 For the purpose of determining conformance with this specification, an observed or calculated value shall be rounded to the nearest unit in the right-hand place figures used in expressing the limiting values ftr quantities in accordance with the round-off method given in ASTM E29, Standard practice for Using Significant Digits in Test Data to Determine Conformance with this Specification.
6. Test Methods and Retest
6.1 Ctiernical Analysis
6.1.1 The chemical compositions of ferrous and nonferrous solid and composite wire and ceramic rod feedsiock are defined in Tables 1, 2, 3, and 4. The chemical composition shall be determined by emission spectrochernical analysis, inductively coupled plasma spectroscopy, and wet chemical analysis, singly or in combination, in accordance with one or more of the following standards, or as agreed to by the purchaser and supplier:
(1) ASTM E34, Test Method for chemical Analysis of Aluminum and Aluminum Alloys (referee)
(2) ASTM E227, Standard Method Jr Optical Emission Spec! romeiric Analysis of Aluminum and Alu,,iinu,n Alloys by the Porn t-to- Plane Techmi ique
(3) ASTM E354. Test Method for Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel, and Cobalt Alloys.AWS C2.25/C2.25M pdf download.
