AWS A5.01M/A5.01 pdf free download

AWS A5.01M/A5.01 pdf free download.Welding Consumables—Procurement of Filler Metals and Fluxes.
3 Terms and Definitions
In production, the components of welding consumables shall be divided into discrete quantities so that satisfactory tests with a sample from that quantity will establish that the entire quantity meets specification requirements. These quantities, known by such terms as heats, lots, blends, batches, and mixes, vary in size according to the manufacturer. For identification purposes, each manufacturer assigns a unique designation to each quantity. This designation usually consists of a series of numbers or letters, or combinations thereof, which will enable the manufacturer to determine the date and time (or shift) of manufacture, the raw materials used, and the details of the procedures used in producing the welding consumable. This designation stays with the welding consumable and can be used to identify the material later, in those cases in which identification is necessary.
For the purposes of this standard, the following definitions describing discrete quantities of the components used in the manufacturing of welding consumables apply.
3.1 Dry Batch
The quantity of dry ingredients mixed at one time in one mixing vessel.
NOTE: Liquid(s), such as binders, when added to a dry batch, produce a wet mix. A dry batch may be divided into homogeneous smaller quantities, in which case addition of the liquid(s) produces a corresponding number of smaller wet mixes.
3.2 Dry Blend
Two or more dry batches from which quantities of each are combined proportionately, then mixed In a mixing vessel to produce a larger quantity in which the ingredients are as uniformly dispersed as they would have been had the entire quantity been mixed together at one time in one large mixer.
NOTE: A dry blend, as in the case of a dry batch, may be used singly or divided into smaller quantities, in which case addition of liquid(s) produces a corresponding number of smaller wet mixes.
3.3 Wet Mix
The combination of liquid(s) and a dry batch, dry blend, or a portion thereof, mixed at one time in one mixing vessel.
3.4 Heat
For fully metallic consumables, or the fully metallic rod, tube or strip used to fabricate tubular cored or covered electrodes the following apply. The specific definition is dependent on the method of melting and refining of the metal:
3.4.1 The material obtained from one furnace melt, where slag-metal or gas-metal reactions occur in
producing the specified alloy (e.g., open hearth, electric arc, basic oxygen, argon-oxygen processes). Mill splicing of coils from different heats is not permitted, and coils containing transition heats may not be classified in this manner.
3.4.2 An uninterrupted series of melts from one controlled batch of metals and alloying ingredients in one melting furnace under the same melting conditions, each melt conforming to the chemical composition range approved by the purchaser of the material (i.e., the producer of the welding consumable) where significant chemical reactions do not occur in producing the specified alloy (e.g., induction melting in a controlled atmosphere or in a vacuum).
3.4.3 An uninterrupted series of remelts in one furnace under the same remelting conditions using one or more consumable electrodes produced from a single heat, each remelt conforming to the chemical composition range approved by the purchaser of the material (i.e., the producer of the welding consumable) in processes involving continuous melting and casting (e.g., consumable electrode remelt).AWS A5.01M/A5.01 pdf download.