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ASTM A511 Seamless Stainless Steel Mechanical Tubing

No.1-1

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Description

1. Scope: 1.1 This specification covers seamless stainless steel tube for use in mechanical applications where corrosion-resistant or high-temperature strength is needed. The grades covered are listed in Table 1 and Table 2. 1.2 This specification covers seamless cold-finished mechanical tubing and seamless hot-finished mechanical tubing in sizes up to 12? in. [325 mm] in outside nominal diameter (for round tubing) with wall thicknesses as required. 1.3 Tubes shall be furnished in one of the following shapes, as specified by the purchaser: round, square, rectangular, or special. 1.4 Optional supplementary requirements are provided and when desired, shall be stated in the order. 1.5 The values stated in inch-pound units are to be regarded as the standard. Within the text, the SI units are shown in square brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. 2. Referenced Documents A1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes A370 Test Methods and Definitions for Mechanical Testing of Steel Products E59 Practice for Sampling Steel and Iron for Determination of Chemical Composition MIL-STD-129 Marking for Shipment and Storage MIL-STD-163 Steel Mill Products Preparation for Shipment and Storage Fed. Std. No. 123 Marking for Shipments (Civil Agencies)3.?Chemical Requirements of Austenitic Stainless Steels：GradeComposition, %CarbonMnPSSi, maxNiCrMoTiColumbium plus TantalumSe?maxmaxmaxMT 3020.08 to 0.2020.040.0318.0–10.017.0–19.0............MT 3030.15 max20.20.15 min18.0–10.017.0–19.0............MT 303Se0.15 max20.040.0418.0–11.017.0–19.0.........0.12–0.2MT 3040.08 max20.040.0318.0–11.018.0–20.0............MT 304L0.035 maxA20.040.0318.0–13.018.0–20.0............MT 3050.1220.040.03110.0–13.017.0–19.0............MT 309S0.08 max20.040.03112.0–15.022.0–24.0............MT 310S0.08 max20.040.03119.0–22.024.0–26.0.....

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