SAE AMS 5706N:2020 pdf free

SAE AMS 5706N:2020 pdf free.Nickel Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings
As an alternate procedure, separate smooth and notched specimens, machined from adjacent sections of the same piece, with gage sections conforming to the respective dimensions shown in ASTM E292, may be tested individually under the conditions of 3.5.1.2.4.1. The smooth specimen shall not rupture in less than 23 hours and elongation after rupture, measured at room temperature, shall be not less than 8% in 4D. The notched specimen shall not rupture in less time than the smooth specimen.
The tests of3.5.1.2.4.1 and 3.5.1.2.4.2 may be conducted using incremental loading. In such case, the load required to produce an initial axial stress of 75.0 ksi (517 MPa) or higher shall be used to rupture or for 23 hours, whichever occurs first. After the 23 hours and at intervals of 8 hours minimum, thereafter, the stress shall be increased in increments of 5.0 ksi (34 MPa). Time to rupture, rupture location, and elongation requirements shall be as specified in 3.5.1.2.4.1.
When a sample of stock is forged to a test coupon and heat treated as in 3.4 and 3.5.1.2, specimens taken from the heat treated coupon shall conform to the requirements of 3.5.1.2.2, 3.5.1.2.3, and 3.5.1.2.4. If specimens taken from the stock after heat treatment as in 3.4 and 3.5.1.2 conform to the requirements of 3.5.1.2.2, 3.5.1.2.3, and 3.5.1.2.4, the tests shall be accepted as equivalent to tests of a forged coupon.
The ability of forging stock (3.5.2) and of stock for flash welded rings and heading (3.5.3) to develop required properties and grain flow of die forgings (3.6.1) are periodic tests and shall be performed at a frequency selected by the producer unless frequency of testing is specified by purchaser.
When material produced to this specification is outside the size range specified in 1.1, or has exceptions authorized by purchaser taken to the technical requirements listed in Section 3 (see 5.2.1.1), the report shall contain a statement“This material is certified as AMS5706N(EXC) because of the following exceptions:” and the specific exceptions shall be listed.SAE AMS 5706N pdf free download.