ASTM A269 Seamless And Welded Steel Pipe

ASTM A269 standard is a general specification for seamless and welded austenitic stainless steel. GNEE supplies ASTM A269 bright annealed tubes in two main materials: 304L and 316L. The bright annealed tubes under this standard have an accuracy of ±0.05mm and high internal and external surface cleanliness. They are widely used in automotive, solar energy, electronics, pressure vessels and other fields.

The production process of ASTM A269 stainless steel annealed tubes includes cold drawing and bright annealing. This tube is subjected to high temperature solution treatment under the protection of a reducing atmosphere, ensuring its excellent corrosion resistance and smooth surface.

ASTM A269 Seamless Precision Tube Specification

Product Name	Seamless Stainless Steel Pipes /Tubes
Standard	ASTM A269
Specification	Outer diameter	6mm-219mm
	Wall thickness	1mm-20mm
	Length	Single random length/ Double random length or as customer's actual request
Surface	Annealing&Pickling, Polishing180#-600#), Bright Annealing, Sand Blasting,Shot Blasting
Flattening Test	For material heat treated in a continuous furnace flattening tests shall be made on a sufficient number of pipes to constitute 5% of the lot, but in no case less than 2 lengths of pipe.
Hydrostatic or Nondestructive Testing	Each pipe shall be subjected to the nondestructive electric test or the hydrostatic test

Why choose GNEE

GNEE's main stainless steel products have the following specifications: outer diameter 6 - 720mm, wall thickness 1 - 50mm, length 4000mm-13000mm. Product varieties include: 304, 304L, 304H, 321, 321H, 316, 316L, 317L, 310S (2520), 347H, 904L, S32205, S32507, 400, 600, 800 series austenitic stainless steel, duplex steel, super duplex steel and nickel-based alloy products.
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