ISO 4990-2015 pdf free.Steel castings – General technical delivery requirements.
ISO 4990 specifies the general technical delivery requirements for the supply of steel, nickel, and cobalt alloy castings, including the requirements for the selection and preparation of samples and test pieces.
When a material or product standard differ from this delivery specification, the material or product standard shall apply. In the case of investment castings, ISO 16468 will apply.
This International Standard also specifies a group of supplementary requirements which may be applied to steel, nickel, and cobalt alloy castings. These requirements are provided for use when additional testing or inspection is desired and apply only when individually specified by the purchaser.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 148-1, Metallic materials — Charpy pendulum impact test — Part 1: Test method ISO 404:2013, Steel and steel products — General technical delivery requirements
ISO 3651-2, Determination of resistance to intergranular corrosion of stainless steels — Part 2: Ferritic, austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in media containing sulfuric acid ISO 4948-1, Steels — Classification — Part 1: Classification of steels into unalloyed and alloy steels based on chemical corn position
ISO 4986, Steel castings — Magnetic particle inspection
ISO 4987, Steel castings — Liquid penetrant inspection
ISO 4992-1, Steel castings — Ultrasonic examination — Part 1: Steel castings for general purposes
ISO 492-2,Steel castings — Ultrasonic examination — Part 2: Steel castings for highly stressed components
ISO 4993, Steel and iron castings — Radiographic inspection
ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method
ISO 6892-1. Metallic materials — Tensile testing — Part 1: Method of test at room temperature
ISO 6892-2, Metallic materials — Tensile testing — Part 2: Method of test at elevated temperature
ISO 6929:2013, Steel products — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 404, Iso 4948-1, ISO 6929:2013, Clause 9, ISO 11970, and the following apply. In case of dispute, the terms and definitions in ISO 4990 apply.
3.1 cast (heat) all the molten metal poured from a single furnace or all the molten metal from two or more furnaces poured into a single ladle or casting
Note 1 to entry: The following are some examples Ithe words in boldface are the criteria for determining the cast (heat) definition]:
a) all the molten metal from one or more furnaces poured into a single ladle or casting;
b) all the molten metal in one melt in a single furnace.
4 Information to be supplied by the purchaser
4.1 The enquiry and order should include the information as specified in 4.L1 and 4L2.
4.1.1 A description of the casting(s) by pattern number and/or drawing. When a pattern is supplied, a complete list of the pattern equipment should be included. When a drawing is not supplied, the casting is purchased on the basis of the pattern. In that case, the foundry shall not be responsible for the dimensions of the part.
NOTE Machining allowances, dimensional tolerances, and geometrical tolerances can be selected from
ISO 8062-3.
All modifications to be made to the drawing, for the technical requirements of the manufacturer, shall form the subject of an agreement between the manufacturer and the purchaser.
4.1.2 The material standard, delivery condition, and grade of steel, nickel, or cobalt alloy.
4.2 Where appropriate, the enquiry and order should include additional information, e.g.:
a) any supplementary requirements in accordance with Annex B:
b) non-destructive testing procedures to be used, extent of the non-destructive testing, and acceptance criteria.ISO 4990 pdf download.