Seamless austenitic stainless steel pipe/tube, Seamless duplex stainless steel pipe/tube, U tubes Huzhou Gaolin Stainless Steel Tube Manufacture Co., Ltd. is a professional manufacturer of ASTM A269 or ASME SA269 stainless steel tubes.
There are many materials listed in ASTM A269 standard. Our products have following properties.
Materials: TP304/304L/304LN, TP316/316L, TP317/317L, TP321, TP347/347H, TP316Ti, TP904L, S34700, S32100, S31700, S31653, S31603, S31600, S30453, S30403, S30400, S31254, N08904and so on.
Similar Standards: ASME SA213, EN10216-5, JIS G3459, DIN17456, GB/T14976-2012
Specification: OD 6.35mm to 219.1mm; WT 0.711mm to 10mm; Length Max 25m.
Tests: all tubes should be hydro static tested, non-destructive tested (ET and/or UT).
ASTM A269 is a standard specification for seamless and welded austenitic stainless steel tubing for General Service such as machine parts. Nearly all A269 stainless steel tube exported to EU need be bright annealed. It is not like A213 tubes which always need solution annealed.
This specification covers grades of nominal wall thickness, stainless steel tubing for general corrosion-resisting and low- or high-temperature service. The tubing sizes and thicknesses usually furnished to this specification are 1⁄4 in. [6.4 mm] in inside diameter and larger and 0.020 in. [0.51 mm] in nominal wall-thickness and heavier.
Mechanical property requirements do not apply to tubing smaller than 1⁄8 in. [3.2 mm] in inside diameter or 0.015 in. [0.38 mm] in thickness.
Optional supplementary requirements are provided and, when one or more of these are desired, each shall be so stated in the order.
The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.
Orders for material under this specification should include the following, as required, to describe the desired material adequately:
Quantity (feet, metres, or number of lengths),
Name of material (seamless or welded
tubes),
Grade,
Size (outside diameter and nominal wall thickness),
Length (specific or random),
Optional requirements (heat treatment, hydrostatic or nondestructive electric test),
Test report required (see
Section on Inspection of Specification A1016/A1016M),
Specification designation, and
Special requirements
and any supplementary requirements selected
Material furnished under this specification shall conform to the applicable requirements of the current edition of Specification A1016/A1016M, unless otherwise provided herein.
The tubes shall be made by the seamless or welded process. At the manufacturer’s option, tubing may be furnished either hot finished or cold finished
All material shall be furnished in the solution heat treated condition. Except as provided in 6.2, the heat-treatment procedure shall consist of heating the material to a minimum temperature or temperature range as specified for the grade in Table 2, followed by quenching in water or rapidly cooling by other means. Alternatively, for seamless tubes, immediately following hot forming while the temperature of the tubes is not less than the specified minimum solution treatment temperature, tubes may be individually quenched in water or rapidly cooled by other means. Controlled structural or special service characteristics shall be specified as a guide for the most suitable heat treatment. If the final heat treatment is at a temperature under 1900 °F [1040 °C] and is so specified on the order, each tube shall be stenciled with the final heat treatment temperature in degrees Fahrenheit [degrees Celsius] after the suffix “HT”. 6.3 A solution annealing temperature above 1950 °F [1065 °C] may impair the resistance to intergranular corrosion after subsequent exposure to sensitizing conditions in TP321, TP347, and TP348. When specified by the purchaser, a lower temperature stabilization or re-solution anneal shall be used subsequent to the initial high temperature solution anneal (see Supplementary Requirement S3).
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