ISO 630-6-2014 pdf free.Structural steels – Part 6: Technical delivery conditions for seismic-improved structural steels for building.
This part of ISO 630 specifies qualities for seismic-proof improved structural steels. This part of ISO 630 applies to steel plates with thicknesses of 6 mm or over and up to 125 mm, wide flats and hot-rolled sections up to 140 mm, which are used in the usual delivery conditions as given in Z and normally intended for welded or bolted structures.
This part of ISO 630 does not include the following structural steels, certain of which are covered by other International Standards:
— sheet and strip – refer to ISO TC 17/SC 12. Continuous mill flat rolled products;
— tubular products — refer to ISO TC 5/SC 1, Steel tubes.
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.
ISO 630-1, Structural steels — Part 1: General technical delivery conditions for hot-rolled products
ISO 7452:2013, Hot-rolled steel plates — Tolerances on dimensions and shape
ISO 7778, Through-thickness characteristics for steel products
ISO 9034:1987, Hot-rolled structural steel wide flats — Tolerances on dimensions and shape
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 as-rolled steel without any special rolling and/or heat treatment condition
3.2 normalized steel produced by heating to a suitable temperature above the transformation range and then cooling in air to a temperature substantially below the transformation range
3.3 quenching operation which consists of cooling a ferrous product more rapidly than in still air from a high temperature above Ac1
3.4 tempering heat treatment applied to a ferrous product, generally after quench hardening, or another heat treatment to bring the properties to the required level, and consisting of heating to specific temperatures (<Ad) and soaking for an appropriate duration followed by cooling at an appropriate rate
Note ito entry: Additionally, the following may apply: processes of direct quenching plus tempering.
3.5 therniomechanical 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 ito entry: Hot forming or post weld heat treatment above 580 °C may lower the strength values and should not be performed. Flame straightening may be applied in accordance with relevant technical recommendations.
Note 2 to entry: Thermomechanical rolling can include processes with an increasing cooling rate with or without tempering including self-tempering but excluding direct quenching and quenching and tempering.
Note 3 to entry: In some publications the term Thermomechanical Control Process is also used.
4 Classification and designation
4.1 Classification
The steel grades specified in this document shall be classified as unalloyed or alloy quality steels.
4.2 Grades and Qualities
This document specifies four (4) steel grades— Grades SA235, SA325, SA345. and SA440. Each grade is available in up to three (3) qualities.
— Quality A: no impact testing
— Quality C: impact testing at 0 °C
— Quality C+: impact testing at 0 °C and through-thickness characteristics testing.ISO 630-6 pdf free download.
Tags: Structural steels
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ISO 15688-2012 pdf free download.Road construction and maintenance equipment – Soil stabilizers 一 Terminology and commercial specifications. This International Standard establishes the terminology, definitions of operation and commercial specifications for soil stabilizers and their components intended for use in road construction and pavement works. It does not apply to soil stabilizers used in agricultural applications. 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.. ISO 3911, Wheels and rims for pneumatic tyres — Vocabulary, designation and marking ISO 6746-1, Earth-moving machinery — Definitions of dimensions and codes — Part 1: Base machine ISO 6746-2, Earth-moving machinery — Definitions of dimensions and codes — Part 2: Equipment and attachments ISO 7134. Earth-moving machinery — Graders — Terminology and commercial specifications 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 soil stabilizer self-propelled machine, either towed or transported, with the function of pulverizing, breaking-up, aerating, homogenizing, and loosening existing and imported soil or paving materials and mixing them…
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ISO 18436-1-2012 pdf free.Condition monitoring and diagnostics of machines – Requirements for qualification and assessment of personnel一 Part 1: Requirements for assessment bodies and the assessment process. 5 Requirements for assessment body personnel 5.1 General provisions In order to ensure that the assessment process is carried out effectively and uniformly, the competence requirements for personnel involved in the entire process shall be defined by the assessment body and, in the case of a third party, be approved by the responsible TCC (in accordance with ISO/IEC 17024). The assessment body shall require its personnel (internal or external) to sign a contract, or other document, by which they commit themselves to comply with the rules defined by the assessment body, including those relating to confidentiality and those relating to independence from commercial and other interests, and from any prior or present link with the persons to be examined that would, in the opinion of the interested parties, compromise impartiality. Clearly documented instructions shall be available to the personnel, describing their duties and responsibilities. These instructions shall be maintained up to date. All personnel involved in any aspect of assessment activities shall possess appropriate educational qualifications, experience and technical expertise, which satisfy defined…