BS EN 10149-2-2013 pdf download.Hot rolled flat products made of high yield strength steels for cold forming
Part 2: Technical delivery conditions for thermomechanically rolled steels.
This BS EN 10149-2 in addition to EN 10149-1. specifies requirements for flat products made of weldable, hot-rolled. high yield strength steels for cold forming.
The grades are given in Table 1 (chemical composition) and Table 2 (mechanical poperties) and are supplied in the thermomechanically rolled delivery condition as given in 7.2.
The steels specified in this European Standard are applicable to hot-rolled flat products in the thickness range of:
1.5mm to 20mm for the steels which have a specified minimum yield strength 01315 MPa1)up to and including 460 MPa”;
— 1,5 mm to 16 mm for the steels which have a specified minimum yield strength of 500 up to and including 700 MPa”; and
— from 2 mm up to 10 mm for the steels with a minimum yield stress in the range from 900 MPa to 960 MPa’.
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.
EN 10029. Hot-rolled plates 3mm thick or above – Tolerances on dimensions and shape
EN 10051. Continuously hot-rolled stnp and plateheet cut from wide strip of non-alloy and alloy steels – Tolerances on dimensions and shape
EN 10149-1:2013, Hot rolled flat products made of high yield strength steels for cold forming – Part 1: General technical delivery conditions
EN ISO 1471 3-2:2009. Zinc coatings – Guidelines and recommendations for the protection against corrosion of iron and steel in structures – Part 2: Hot dip galvanizing (ISO 14 713-2:2009)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 10149-1:2013 apply.
4 Information to be supplied by the purchaser
4.2 Options
The options given in EN 10149-1 and Clause 11 shall apply.
5 Dimensions, mass and tolerances
5.1 Dimensions and tolerances
The dimensions and tolerances shall be in accordance with EN 10149-1.
For hot rolled plate tolerances, the basic requirements shall be in accordance with EN 10029. including thickness tolerances to class A, unless otherwise agreed at the time of the order.
For plates cut from continuously hot rolled strip, the thickness tolerances shall be in accordance with
EN 10051.
5.2 Mass of steel
The calculated mass of steel shall be determined in accordance with EN 10149-1.
6 Classification and designation
6.1 Classification
The steel grades S315MC. S355MC, S42OMC. S46OMC. S500MC and S55OMC of this European Standard are alloy quality steels and the steel grades S600MC, SS5OMC, S700MC, S900MC and S96OMC of this European Standard are alloy special steels according to EN 10020.
62 Designation
The designation shall comply with EN 10149-1.
7 Technical requirements
7.1 Steel manufacturing process
The steel manufacturing process shall be in accordance with EN 10149-1. See EN 10149-1:2013, Clause 11, option 1).
The chemical composition determined by ladle analysis shall comply with the specified values of Table 1.
See EN 10149-1:2013, Clause 11, option 3).
7.4 Mechanical properties
7.4.1 General
Under the inspection and testing conditions as specified in Clause 8 and in the delivery condition as specified in 7.2, the mechanical properties shall comply with the values given in Table 2.
Heating of grades S900MC and S96OMC above 400 °C is not recommended. If the purchaser intends to heat grades S900MC and S96OMC at temperatures above 400 CC, the mechanical properties after such heating should be agreed at the time of order.
See EN 10149-1:2013, Clause 11. option 13).
7.4.2 Impact energy
If agreed at the time of the order, the verification of the impact energy value shall be carried out in accordance with EN 10149-1.
See EN 10149-1:2013. Clause 11. option 5).
7.5 Technological properties
7.5.1 Weldability
Weldability shall be in accordance with EN 10149-1.
7.5.2 FormabilIty
7.5.2.1 General
NOTE Recommendations regarding cold forming are laid down in CENTR 10347. The products supplied according
to this standard are not suitable fo’ hot forming,
7.5.2.2 Cold formIng
7.5.2.2.1 General
Annex 8 contains indicative values for the inside bend radii for cold forming.BS EN 10149-2-2013 pdf download.