ASTM A519 4130 / 4140 Hot / Cold Carbon Seamless Steel Tubing Finished OD1/2'-48'​

ASTM A519 specification covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished. The steel used in the mechanical tubing may be cast in ingots or may be strand cast. When steel of different grades is sequentially strand cast, identification of the resultant transition material is required. The seamless tubing is a tubular product made without a welded seam. It is usually manufactured by hot working steel, and if necessary, by subsequently cold finishing the hot-worked tubular product to produce the desired shape, dimensions and properties. The tubes shall be furnished in the following shapes: round, square, rectangular and special sections. Heat analysis shall be made to determine the percentages of the elements specified. If secondary melting processes are used, the heat analysis shall be obtained from one remelted ingot or the product of one remelted ingot of each primary melt. The tubing shall be coated with a film of oil before shaping to retard rust when specified.

Stamdard: ASTM A519

Main steel grades: 4130,4140

Application: A519 seamless tubing is commonly used in applications requiring machining, heat treating, close tolerances, smooth finishes, and/or definite physical properties.

Chemical Requirements & Mechanical Proterties:

Inspection and Test: chemical composition test, mechanical properties test(tensile, yield, elongation), process properties test(flatting, flaring, bending, hardness, impact, etc.), appearance and size test, non-destructive inspection test, hydrostastic test.

Mark: As required.

Delivery status: Annealed, normalized, normalized+Tempered, etc.

End: plain end, beveled end, threaded

End protection: plastic caps

Packing: Exporting package/wooden box /as requirement.

Supply Ability:40000Pieces / per Month
Packaging & Delivery
Packaging Details:Generally plywooden case or following customer's requirement.
Port:Shanghai/Tianjin

Commerce Clause

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