ASTM B618/B618M-18 pdf free.Standard Specification for Aluminum-Alloy Investment Castings.
If the purchaser desires to make an inspection of the casting at the producer’s works, it shall be so stated in the contract or order.
If the purchaser elects to have inspection made at the producer’ s works, the producer shall afford the inspector all reasonable facilities to satisfy him that the material is being furnished in accordance with this specification. All tests and inspection shall be so conducted as not to interfere unnecessarily with the operation of the works. Requirements such as surface finish, snagging projections where gates and risers were removed, and so forth, may be checked visually. It is advisable to have agreed upon observational standards representing both acceptable and un acceptable material.
If the purchaser elects to have inspection made at the producer’ s works, the producer shall afford the inspector all reasonable facilities to satisfy him that the material is being furnished in accordance with this specification. All tests and inspection shall be so conducted as not to interfere unnecessarily with the operation of the works. When specified, liquid penetrant inspection shall be in accordance with Test Method E165， and the required sensitivity shall be specified. Acceptance standards for discontinuities shall be agreed upon, including size and frequency per unit area and location.
Radiographic inspection shall be in accordance with Guide E94 and Reference Radiographs E155.
When agreed upon between the manufacturer and purchaser digital radiographic inspection shall be in accordance with Guide E94 and Digital Reference Radiographs E2422. Radiographic acceptance shall be in accordance with requirements selected from Table 4. Any modifications of this table and the frequency per unit area and location should also be agreed upon.
The number, film size, and orientation of radiographs and the number of castings radiographically inspected shall be agreed upon by the producer and purchaser. Castings that show unaceptable defects revealed by operations subsequent to acceptance and within an agreed time may be rejected, and shall be replaced by the producer. In the case of dissatisfaction regarding rejections based on chemical composition and mechanical properties specified in Sections 7 and 10, respectively, the producer may make claim for rehearing as the basis of arbitration within a reasonable time after receipt by the producer of the rejection notification. ASTM B618 pdf download.