The old BS970 Parts 1 & 3: 1991 standards have been replaced by a number of EN Standards, the most important of which are shown below
EN10088-3 Replaces BS970 Part 1: 1991 & BS970 Part 3: 1991 covering chemical composition & mechanical properties
EN10058 Tolerances for Hot Rolled Flat Bars
EN10059 Tolerances for Hot Rolled Square Bars
EN10060 Tolerances for Hot Rolled Round Bars
EN10061 Tolerances for Hot Rolled Hexagonal Bars
EN10278 Tolerances for Bright Bars (Drawn, Turned or Ground)
ISO186 Parts 1 & 2 Tolerance Classifications
(see page 4)
Tolerances
~ The ISO tolerances shown are taken from ISO 286.
~ All other tolerances shown in this document are based upon the relevant part/s of the applicable EN Standard/s.
~ For tolerances on Rolled Edge Flat Bar please refer to separate Datasheet
This Data is indicative only and must not be seen as a substitute for the full specification from which it is drawn. In particular, the mechanical property requirements vary widely with temper, product and product dimensions. The information is based on our present knowledge and is given in good faith. However, no liability will be accepted by the Company is respect of any action taken by any third party in reliance thereon.
Any advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. Any contract between the Company and a customer will be subject to the Company’s Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.