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ISO 630-2-2011 pdf free download

ISO 630-2-2011 pdf free download.Structural steels — Part 2:Technical delivery conditions for structural steels for general purposes
ACIerS de construction — Partie 2: Conditions techniques de Iivraison pour aciers de construction metallique d’usage general.
thermomechanical processed
steel rolled with a process in which the final deformation is carried out in a certain temperature range leading to a material condition with certain properties which cannot be achieved or repeated by heat treatment alone
NOTE I I-lot forming or post-weld heat treatment above 580 C may lower the strength values and should not be pecformed. Flame straightening can be applied In accordance with relevant technical recommendations.
NOTE 2 Thermomechanical rolling can include processes with an increasing cooling rate with or without tempering, including self-tempering but exdudlng direct quenching and quenching and tempering.
NOTE 3 In some publications, the wording Thermomechanical Control Process is also used.
4 Classification and designation
4.1 Classification
The steel grades specified in this part of ISO 630 shall be classified as non-alloy or alloy quality steels.
4.2 Grades and qualities
This part of ISO 630 specifies eight steel grades. Grades 5235, S275, S355. and S450 are specified in Annex A. Grades SG205, SG250, SG295, and SG345 are specified in Annex B. Each grade is available in up to four qualities. These grades and qualities differ in their specified mechanical properties and impact energy
Quality A: no impact testing.
Quality B: impact testing at 20 C.
Quality C: Impact testing at 0 C.
Quality 0: impact testing at 20 C.
4.3 Use of normative annexes A and B
The requirements of Annex A or Annex B are to be regarded separately. Each is independent of the other without combining in any way.
5 Information to be supplied by the purchaser
5.1 Mandatory Information
The information that shall be supplied by the purchaser at the time of the order is specified In ISO 630-1.
5.2 Options
The options of ISO 630-1 apply (see ISO 630-1). In addition, the following option applies to products according to this part of ISO 630, It the purchaser does not indicate a wish to implement any of these options at the time of ordering, the products shall be supplied in accordance with the basic specification (see 5.1).
a) Required delivery condition,
b) Testing of impact properties in the transverse direction using Charpy V-notch test pieces in accordance with ISO 630-1.
6 Requirements
See ISO 630-1.
6.1 Steel-making process
See ISO 630-1.
If a special steel-making process has been specified, this shall be reported in the inspection document.
6.2 Delivery condition
At the manufacturers discretion, the products covered by this part of ISO 630 are delivered in the as-rolled condition, normalized rolled, normalized, or thermomechanical processed condition. The delivery condition is indicated in the inspection document.ISO 630-2-2011 pdf free download.

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