This specification covers seamless round and rectangular including square copper alloy tube in straight lengths. The tempers of drawn tube shall be designated as light-drawn, drawn, and hard-drawn. Light-drawn temper shall be used only when a tube of some stiffness but yet capable of being bent is needed. Drawn temper, which is most commonly used where there is no specific requirement for high strength on the one hand, shall be utilized for general purposes and or for bending qualities on the other. Hard-drawn temper shall be used only where there is need for a tube as strong as is commercially feasible for the sizes indicated. For any combination of diameter and wall thickness not covered under hard-drawn temper, the values given for drawn temper shall be used. Expansion test shall be performed on the rounded tube and shall show no cracking or rupture visible to the unaided eye. Both annealed and drawn tempers shall withstand, after proper cleaning, an immersion in standard mercurous nitrate solution for a certain amount of time without cracking. Materials shall then be removed from the solution and shall be wiped free of excess mercury and shall then be examined for cracks. The specimen shall undergo the eddy-current testing which is the standard nondestructive test. The specimen shall undergo the pneumatic test which subjects the tube to an internal air pressure making sure that it must not show evidence of leakage. The test method used shall provide for easy visual detection of any leakage, such as by immersion of the tube under water or by the pressure differential method. Annealed tube shall be either bright annealed or acid cleaned after final annealing operations.
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1.1 This specification covers seamless round and rectangular including square copper alloy tube in straight lengths. Ten alloys are specified having the following nominal compositions:
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B153 Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing
B154 Test Method for Mercurous Nitrate Test for Copper Alloys
B251 Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube
B601 Classification for Temper Designations for Copper and Copper Alloys--Wrought and Cast
E243 Practice for Electromagnetic (Eddy-Current) Examination of Copper and Copper-Alloy Tubes
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
brass tube; seamless brass tube; seamless tube; Brass pipe/tube--specifications; Seamless Cu/Cu alloy tube--specifications; UNS C22000--tube (seamless/welded); UNS C23000--pipe/tube (seamless/welded); UNS C26000--tube; UNS C27000 (yellow brass, 65%); UNS C27200 (brass); UNS C27400 (yellow brass, 63 %); UNS C28000 (Muntz metal, 60 %); UNS C33000 (low leaded brass); UNS C33200 (high leaded brass); UNS C37000 (free-cutting Muntz metal); UNS C44300 (admiralty, arsenical); Yellow brass;
ICS Number Code 23.040.15 (Non-ferrous metal pipes)
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