BS EN 10340:2007 – Steel castings for structural uses
1 Scope
This European Standard applies to steel castings:
for structural uses in buildings and civil engineering works. Its uses include housing and service buildings,bridges, roads, pipe network.
In cases where castings are joined by welding by the founder, this European Standard applies.
This European Standard does not apply in cases where castings are welded:
to wrought products (plates, tubes, forgings…);
or by non founders.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 1 559-1 :1 997, Founding – Technical conditions of delivery – Part 1: General
EN 1 559-2:2000, Founding – Technical conditions of delivery – Part 2: Additional requirements for steel castings
EN 1 0204, Metallic products – Types of inspection documents
EN ISO 8062-3, Geometrical Product Specifications (GPS) – Dimensional and geometrical tolerances for moulded parts – Part 3: General dimensional and geometrical tolerances and machining allowances for castings (ISO 8062-3:2007)
EN ISO 9001 :2000, Quality management systems – Requirements (ISO 9001:2000)
EN ISO 1 1 970, Specification and approval of welding procedures for production welding of steel castings (ISO 11970:2001)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1 559-1 :1 997 and EN 1 559-2:2000 apply.
4 Information to be supplied by the purchaser
In cases of grades with different mechanical properties relating to heat treatment conditions the manufacturer shall obtain from the purchaser the heat treatment symbol in accordance with Clause 5.
5 Designation
In addition to EN 1 559-2:2000:
for a steel grade which can be delivered to different strength levels, according to the heat treatment, a suffix shall be added in accordance with Table 2. For example: G24Mn6+QT1 .
6 Manufacture
■ 6.1 Manufacturing process
■ 6.1.1 Melting
6.1.2 Heat treatment
6.1.2.1 Unless otherwise agreed, the type of heat treatment represented by its symbol shall comply with Table 2. For some grades there are different options with different mechanical properties given in Table 2.
■ 6.1.2.2
6.2 Welding operations
■ 6.2.1 General
6.2.2 Production welding
6.2.2.1 Unless otherwise specified welding is permitted, provided that all welds shall comply with the same criteria for non-destructive testing as the relevant part of the casting and shall be carried out according to a qualified welding procedure (see EN ISO 1 1 970).
6.2.2.2 Conditions for preheat, interpass and postweld heat-treatment related to welding operations are given in Annex A.
BS EN 10340:2007 – Steel castings for structural uses