BS ISO 630-1:2021 Structural steels — Part 1: General technical delivery conditions for hot- rolled products.
In case of specific inspection, the purchaser shall state the required type of inspection documents in accordance with ISO 10474. If the purchaser requires the presence of an authorized representative or an inspector designated by the official regulations, the purchaser shall notify the manufacturer of the name and address of the organization or person who is to carry out the inspection and produce the inspection document.
7.2 Tests to be carried out
7.2.1 The following tests shall be carried out according to the requirements of the individual parts of ISO 630 and shall be reported on the relevant inspection document:
— heat analysis (see 3..1);
— tensile test (see 6.4.2. 8.3.2.2 and 9.2);
— impact test, if specified (see 6.4.3, 8.3.2.3 and 93);
— visual examination of the surface condition (see ba);
— dimensional inspection (see fil).
7.2.2 If agreed upon at the time of enquiry and order, the following specific tests shall be carried out according to the requirements of the individual parts of ISO 630 and shall be reported on the relevant inspection document:
— product analysis (see 6.3.2)
— ultrasonic test for verification of internal soundness (see and 9.S).
7.3 Retests
Retests shall be in accordance with ISO 404.
8 Sampling
8.1 General
The samples and test pieces shall be marked in a way that the product itself is traceable and the position of the samples and test pieces in the product is unambiguously known.
8.2 Frequency of testing
8.2.1 Verification of chemical composition
The verification of the heat analysis shall be one per heat. For the product analysis, if specified and unless otherwise agreed, one test piece per heat shall be taken to determine elements indicated with numerical values for the particular steel grade, in the relevant parts of ISO 630.
8.3 Selection and preparation of samples and test pieces
8.3.1 Sampling and sample preparation
Sampling and sample preparation shall be in accordance with the requirements of 1S0371 and 150 14284.
8.3.2 Preparation of samples and test pieces
8.3.2.1 General
Requirements for the orientation of samples for mechanical tests are given in the individual parts of ISO 630. Requirements for test pieces for mechanical tests are given in the following.
8.3.2.2 Test pieces for the tensile test
8.3.2.2.1 One test piece shall be prepared in accordance with ISO 6892-1 for the tensile test from each test unit. The test piece shall be rectangular except for long products in shape of bars for which the test piece shall be in the origin form of the rolled product, unless a circular test piece is permitted, as stated in 8.3.2.2.3.
8.3.2.2.3 Circular test pieces are permissible, but shall only be provided for product thicknesses/ diameters / widths> 20 mm. Test piece diameters shall be at least 10 mm.BS ISO 630-1 pdf download.