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ASME SA-336-2019 pdf free

ASME SA-336-2019 pdf free.Standard Specification for Alloy Steel Forgings for Pressure and High-Temperature Parts. For liquid quenched and tempered forgings. the lest specimens shall have their longitudinal axis at lease ¼ Tof the maximum heat-treated thickness from any surface and with the mid-length of the specimens at least one T from any second surface. This is normally referred to as 1/4 Tx T, where Tis the maximum heat-treated thickness. A thermal butler may be used to adhere to the above condition.
81.1.3 For liquid quenched and tempered forgings with prior purchaser approval, lest specimens may be taken at a depth U) corresponding to the distance from the area of significant stress to the nearest heat-treated surface and at least twice this distance (2 v) from any second surlace. However, the test depth shall not be nearer to one heat-treated surface than Y4 in. 119 mmj and to the second treated surface than 1½ in. 13H mml. This method of lest specimen location normally (known as tx2t testing) applies to thick and complex pressure vessel coniponents where the testing in accordance with It. 1.1.2 is not practical. Sketches showing the proposed exact test locations shall be approved by the purchaser when this method is used.
8.1.2 Except as specifIed in this specification. tests for acceptance shall be made after heat treatment has been completed in accordance with Section (i. When the ends of the cylindrical forgings are closed in by reforging, the cylindrical forgings may be normalized and tempered or annealed and tested before reforging. After reforging. the entire forging shall be re-heat treated in the same manner and at the same temperature range as employed when the forging was heat treated before certilication testing.
8.1.3 When mutually agreed upon between the manufacturer and the purchaser. test specimens may be machined from a specially forged block suitably wor1.ed and heat treated with the production forgings. Such a special block shall be obtained from an ingot. slab, or hillt from the same hcat used to make the forgings it represents. This block shall receive essentially the same type of hot-working and forging reduction as the production forgings: however, a longitudinally forged bar with dimensions not less than T x T x 3 T may be used to represent a ring forging. The dimension T shall be representative of the heaviest effective cross section of the forging. For quenched and tempered forgings for which tests are required at both ends by and separately forged test blocks are not allowed.ASME SA-336 pdf download.

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