ASTM A269/A269M-24 PDF

ABSTRACT This specification covers nominal-wall-thickness, seamless and welded austenitic steel tubing for general corrosion-resisting and low- or high-temperature service. All material shall be furnished in the heat-treated condition. The steel shall conform to the chemical composition requirements. Different mechanical test requirements that includes, flaring test, flange test, hardness test, and reverse flattening test are presented. Also, each tube shall be subjected to the non-destructive electric test or the hydrostatic test. Finally the hardness requirements for different grades of tubes are highlighted. SCOPE 1.1 This specification covers grades of nominal-wall-thickness, stainless steel tubing for general corrosion-resisting and low- or high-temperature service, as designated in Table 1. Grade Composition, % TP XM-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . UNS DesignationA S24000 S31254 S31266 S31725 S31726 S31727 S32053 S30600A S32654 S34565 S35045 S35030 N08367 N08925 N08926 N08904 Carbon 0.08 0.020 0.030 max 0.035 0.035 0.030 0.030 0.018 0.020 0.030 0.06– 0.10 0.05–0.10 0.030 0.020 0.020 0.020 Manganese 11.5– 14.5 1.00 2.00–4.00 2.00 2.00 1.00 1.00 2.0 2.0– 4.0 5.0– 7.0 1.50 1.50 2.00 1.00 2.00 2.00 Phosphorus 0.060 0.030 0.035 0.045 0.045 0.030 0.030 0.020 0.030 0.030 0.045 0.030 0.040 0.045 0.030 0.040 Sulfur. 0.030 0.015 0.020 0.030 0.030 0.030 0.010 0.020 0.005 0.010 0.015 0.015 0.030 0.030 0.010 0.030 Silicon 1.00 0.80 1.00 1.00 1.00 1.00 1.00 3.7–4.3 0.50 1.00 1.00 0.50–2.0 1.00 0.50 0.50 1.00 Nickel 2.3– 3.7 17.5– 18.5 21.0–24.0 13.5– 17.5 14.5– 17.5 14.5– 16.5 24.0– 26.0 14.0– 15.5 21.0– 23.0 16.0– 18.0 32.0– 37.0 22.5– 27.5 23.5– 25.5 24.0–26.0 24.0– 26.0 23.0– 28.0 Chromium 17.0– 19.0 19.5– 20.5 23.0–25.0 18.0– 20.0 17.0– 20.0 17.5– 19.0 22.0– 24.0 17.0– 18.5 24.0– 25.0 23.0– 25.0 25.0– 29.0 18.5–22.5 20.0– 22.0 19.0–21.0 19.0– 21.0 19.0– 23.0 Molybdenum ... 6.0– 6.5 5.2–6.2 4.0– 5.0 4.0– 5.0 3.8– 4.5 5.0– 6.0 0.20 max 7.0– 8.0 4.0– 5.0 . . . 6.0– 7.0 6.0–7.0 6.0– 7.0 4.0– 5.0 Titanium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.15– 0.60 . . . . . . . . . . . . . . . Columbium . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.10 max . . . 0.25–0.75 . . . . . . . . . . . . Tantalum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NitrogenF 0.20– 0.40 0.18– 0.25 0.35–0.60 0.20 max 0.10– 0.20 0.15– 0.21 0.17– 0.22 0.45– 0.55 0.40– 0.60 . . . 0.05–0.15 0.18– 0.25 0.10–0.20 0.15– 0.25 0.10 max Vanadium . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Copper . . . 0.50– 1.00 1.00–2.50 . . . . . . 2.8– 4.0 . . . 0.50 max 0.30– 0.60 . . . 0.75 2.5–3.5 0.75 max 0.80–1.50 0.50– 1.50 1.00– 2.00 Others . . . . . . W 1.50–2.50 . . . . . . . . . . . . . . . . . . . . . Al 0.15– 0.60 . . . . . . . . . . . . . . . 1.2 The tubing sizes and thic...