• iso3834
• 3834-2
• certifications
• quality
• weldings

ISO 3834-2:2005

high quality requirements

This certification is an important achievement for the company Arte Ferro s.r.l.

the title of the UNI EN ISO 3834 standard reads: Quality requirements for metal-melt welding welding, in particular part 2 (UNI EN ISO 3834-2), refer to extensive quality requirements.

The certification for the welding process UNI EN ISO 3834 Part 2 is absolutely necessary, as it is an essential prerequisite for making the complaint as a Steel Transformation Center to the Superior Council for public works under the D.M. 14/01/2008 Technical Standards for Construction (N.T.C.), and being indispensable for welding, and therefore building structures and parts of structures subject to fatigue stresses or placing in seismic zones!

Specifically, the standard defines the high quality requirements for welding by melting of metal materials both in the workshop and in the construction site.

This Standard provides:

Requirements Review and Technical Review

The manufacturer must re-examine the contractual requirements and any other requirements, as well as the technical data provided by the customer or company data when the construction is designed by the manufacturer. The manufacturer must make sure that all the information necessary to carry out the manufacturing operations is complete and available before The manufacturer must declare his ability to meet all the requirements and must ensure proper planning of all quality-related activities. When the manufacturer intends to use subcontracting services or activities (eg welding, inspection, checking non-destructive, thermal treatments), must provide the subcontractor with all the information necessary to meet the applicable requirements. The subcontractor must provide reports and documentation relating to his work in the manner that may be specified by the manufacturer.

Welding staff

The manufacturer must have sufficient and competent staff to carry out the planning, manufacture and supervision of welding production in accordance with the requirements specified. Welders and welding operators must be qualified by appropriate testing. The manufacturer must have suitable personnel coordination of welding activities. Such persons, being responsible for quality activities, must have sufficient authority to enable them to take the necessary action. The duties and responsibilities of such persons must be clearly defined.

Staff in charge of inspections and tests

The manufacturer must have sufficient and competent personnel in planning and manufacture, as well as for the supervision, inspection and testing of welding production in accordance with the requirements specified. Non-destructive inspection personnel must be qualified. A qualification test may not be required for visual examination. When a qualification test is not required, the competence must be verified by the manufacturer.

Equipment

The manufacturer must keep a list of the essential equipment used for the production. This list must indicate the characteristics of the main equipment, essential for the assessment of the work capacity and the suitability of the workshop. The manufacturer must have documented plans for the maintenance of the equipment. These plans must provide maintenance controls for those parts of the equipment that affect the variables listed in the corresponding welding procedure specifications. Plans can be limited to those parts of the equipment that are essential to ensure the quality of the welded construction.

Welding and related activities

The manufacturer must carry out an appropriate production planning. The manufacturer must prepare the specific welding procedure / specifications and ensure that they are properly applied in production. The welding procedures must be qualified prior to production. The qualification method must conform to the relevant product standards or as specified in the specification.

Welding materials

The manufacturer must prepare and apply procedures for the storage, handling and use of the feedstocks, so as to avoid moisture absorption, oxidation, damages, etc. The procedures must be in accordance with the recommendations of the manufacturer of the supply materials. Storage must be done so that the base materials, including those provided by the customer, are not damaged. Identification must be maintained during storage.

Inspections and tests

Appropriate inspections and tests shall be carried out at the appropriate stages of the manufacturing process in order to ensure compliance with the contractual requirements. The location and frequency of such inspections and / or tests shall depend on the contract and / or produced by the welding process and the type of construction

Non-compliance and corrective actions

Measures should be taken to check items or activities that do not meet the specified requirements, so as to prevent inadvertently their acceptance. When repair and / or rework is performed by the manufacturer, descriptions of the appropriate procedures must be available in all jobs where repair or rework is being performed. If repairs have been carried out, the parts must again be inspected, tested and tested in accordance with the original requirements. Measures must also be taken to prevent repeated non-compliance.

Calibration and validation of measuring, inspection and testing equipment

The manufacturer must be responsible for the appropriate calibration or validation of the measuring, inspection and testing equipment. All equipment used to assess the quality of construction must be adequately controlled and must be calibrated or validated at specified intervals.

Identification and traceability

Identification and traceability must be maintained throughout the manufacturing process, if required.

• iso9001
• 9001
• 9001:2015
• certifications
• quality
• management

This certification is an important achievement for the company Arte Ferro s.r.l, being a fundamental prerequisite for filing the complaint as a Steel Transformation Center under the D.M. 14/01/208, Technical Standards for Construction (N.T.C.)

The standard specifies the requirements for a quality management system for an organization that:

• It has the need to demonstrate its ability to regularly supply a product that meets customer requirements and applicable binding standards;
• Desires to increase customer satisfaction through effective system application, including processes to continuously improve the system and ensure compliance with customer requirements and applicable binding standards

All requirements are of a general nature and are expected to be applicable to all organizations, regardless of type, size, and product provided. The rule can be used by internal and external organization organizations, including certification bodies, to assess the organization's ability to meet customer requirements, the hub requirements applicable to the product, and the requirements set by the organization itself.

• 1090
• CE
• quality
• steel structure
• ce marking
• certications
• mandatory

UNI EN 1090 Fast Certification?

In the last period a lot has been said about ways to certify carpentry and systems that are more or less facilitated to obtain certification, also thanks to the collaboration of Entities and Organizations that tend to deal with the topic with superficiality or worse still as it goes to say to the Italian (ie not taking things seriously but focusing on what can be the possible escamotage, to overcome the problems and demands of the regulatory system)

By making an explicit reference to the activities of the carpentry production workshop:

Initial Situation (from DM 16/01/1996 to N.T.C. 2008)

During this period there were no limitations for workshops that intended to carry out structural structural carpentry other than the ability of the product to commission the product in terms of equipment and space, so no specific knowledge was required, as well as no qualifications needed of staff or production controls, simply anyone who thought he was able to do a particular job could do it.

n practice chaos reigned the only way to overcome the lack of regulatory references, it was in some cases the professionalism and experience of some designers or builders.

Recent History. (N.T.C. 2008)

Anyone without any exclusion to provide construction material or more generally to build structural carpentry is required in law to register his company to the Higher Board of Public Works as a Steel Conversion Center.

Buildings or structures are divided mainly between:

• Structures subject to fatigue or turmoil
• Structure subject to static stress!

This step required a great deal of effort for companies wishing to build carpentry, as without distinction between number of employees, turnover classes or type of work, all must undergo the same process as:

• The implementation of a Quality Management System UNI EN ISO 9001 certified by a Notified Body
• The implementation of quality management system for the welding process UNI EN ISO 3834 Certification, which provides different degrees of application depending on the type of construction to be carried out (eg 3832-2 for structures subject to fatigue or earthquake or 3834 -3 for static structures), which includes the following points:
  • Use for welding operations of qualified personnel (the famous welder patents) according to UNI EN 287 now UNI EN 9606, issued by a notified body;
  • Use of WPS (Welding Procedure Specification or shortly a document to be supplied to the welder with all welding and joint preparation parameters) produced according to UNI EN 15609;
  • Qualified welding procedures UNI EN 15614 (single system provided) issued by notified body;
  • Possession of staff responsible for covering the role of co-ordinator of welding;
  • Warehouse management and related traceability of base material and supply material;
  • Management of equipment with relative periodic maintenance in order to ensure continuous initial efficiency and constancy in the process;
• Integration within its own staff for VT visual inspection (100% for all joints) 2nd degree certificate according to UNI EN 473 now become UNI EN 9712
• Integrating within its own staff of professional figures responsible for the role of Technical Director of Establishment, who necessarily has to be a technical professional enrolled in his / her membership register (order or college), among the various tasks of the DTS are:
  • Supervision of production activities;
  • Checking acceptance of base material by sampling to be tested as provided in §11.3.4.11.2.3 of D.M. 14/01/2008;
  • Recording the results of the checks performed as in the previous point;
• Complex document management, as it increases the amount of documents to be produced for each single order then to be kept for legal terms (at least 10 years)!

Without going into further detail, it is obvious that all this work and commitment has undoubtedly increased the quality of the products provided or realized, and the professionalism of companies involved in guaranteeing and protecting the final customer and civil society, all this also against competition European, to get all this, companies have had to make significant investments in economic terms, which some unfortunately have managed to avoid bypassing the requirement, using misinformation or the conviction of buyers and professionals!

It should be remembered that since 1 July 2009 the application of the Technical Standards for Construction became mandatory, it is from that date that the various Works Offices engaged throughout the national territory would no longer be able to receive on a material site that was not produced according to the requirements of the NTC, then the Transformation Centers in the case of steel;

Current situation (UNI EN 1090-1)

Anyone without any exclusion to provide construction material or more generally to build structural carpentry is obliged in law to provide the CE marking of their products!

As is well known, UNI EN 1090 classifies constructions according to 4 execution classes, starting from EXC1 (for simple structures of absolutely no relevance and importance) up to the EXC4 class (for structures of national strategic importance or for civil protection purposes)

Certification for CE carpentry marking can be obtained by submitting its own FPC (factory production control) to the examination of a Notified Body!

According to the UNI EN 1090-1 standard, factory production control or FPC between the following points:

• requires the application of an organizational methodology, in this case the requirements of the UNI 9001 are considered an acceptable method (in the case even if a certified system does not require a proof of application);
• requires the implementation of a quality management system for the welding process conforming to UNI EN ISO 3834, which envisages different degrees of application depending on the type of construction to be manufactured (eg 3832-2 for structures subject to fatigue or turmoil or 3834-3 for static structures) of particular importance for welded structures since it is then promptly recalled by UNI EN 1090-2 "Execution of steel structures" (a certified system guarantees the evidence of application), the correspondence between the EXC execution classes and the different levels of UNI EN 3834 and defined by the UNI EN 1090-2 standard, the points for UNI EN 3834 for the CE marking are:
  • Use for welding operations of qualified personnel according to UNI EN 9606;
  • Use of WPS produced according to UNI EN 15609 for welding activities, including pre-assembly and repair activities;
  • Qualified welding procedures UNI EN 15614, UNI EN 15613, and only for EXC2 execution class, it is possible to use the qualified procedures according to UNI EN 15612;
  • Having qualified / certified staff to serve as a welding coordinator in accordance with UNI EN 14731, this figure in particular plays a key role in the organization's activities!
  • Warehouse management and related traceability of base material and supply material;
  • Management of equipment with relative periodic maintenance in order to ensure continuous initial efficiency!
• Adoption within the organization of VT visual inspection staff (100% for all joints) 2nd degree certificate according to UNI EN 9712 (ex UNI 473)
• Integration of visual controls with other methods whose extension is always defined by the UNI EN 1090-2 standard based on the performance classes with penetration (PT) or magnetic particles (MT) for all activities related to PND ( Non Destructive Testing) the staff must always be certified 2nd level according to UNI EN 9712.
• The figure of the Technical Director of establishment is no longer necessary, now the responsibilities are from the manufacturer, or the person who signs the performance statement (DOP), and can use external figures to verify compliance, common case and assignment to welding coordinator!
• Document management that as for N.T.C. is complex, as it increases the amount of documents to be produced for each single job, including designs, designs, reports, certifications, and more than anything to keep for the law (at least 10 years)!

It is obvious that this certification represents the natural evolution of the N.T.C., which is now evolving from national legislation towards free trade and transit of goods within the European Community, being UNI EN 1090 European legislation applicable throughout the territory without restriction!

Companies that in previous years had activated to operate in accordance with N.T.C. obviously have the advantage of obtaining certification, and with relatively little effort they can adapt to the new legislation without any particular burden (precisely because much of the work has already been done in a serious way in previous years), continuing to improve qualitatively the work and prestige of a category absolutely fundamental to the Italian economy, such as that of the buildings (in this case related to steel), while for companies that for the most disparate reasons are looking to produce carpentry without experience in the field it becomes necessary commitment and a remarkable investment in terms of human and economic resources to achieve the same qualitative and organizational standards of the previous ones!

So we personally feel that we are responding to mails, faxes or communications of various kinds and genres that are promptly delivered to us, and which we imagine are widespread, with titles of the kind: "... REGISTER NOW WITH ... omissis ... "," IF YOU WANT TO CREATE SURE AND COSTS CONTAINED IN THE CERTIFICATION ... "," ... WE PROVIDE THE CE MARKING ON YOUR PRODUCTS ... ", etc ... etc ... that one product certification "easy", "immediate", practically uncompromising, almost by buying it from office absolutely does not need anyone, from the buyers to the technicians to end up to the various categories involved are all penalized, except to those who publicize it playing on the targeting, aiming information and possible voids or regulatory gaps, denigrating the work and commitment of the many companies that have been committed to working and respecting recognized standards in recent years, "product certification is not necessary that is f acute or immediate, but it must be serious, which can be a distinctive title for the organizations that adopt it and believe it "and that it will allow Italian companies to compete and become more successful on the European and international markets!

To conclude on the basis of these considerations it is absolutely essential to rely on certified companies with EXC-3 execution class, and later as:

• this execution class "does not allow shortcuts" of any kind to obtain the certification itself, unless seriousness is the commitment of the organizations they intend to achieve;
• it does not represent an additional burden for the designers who want to entrust their works except for a quality guarantee;
• is the most effective way to reward qualitatively and professionally the companies that are so popular and widely spread throughout the Italian territory that as ours have immediately engaged in the certification process!

• 1090
• CE
• certifications
• quality
• steel structure
• ce marking
• applications

Purpose and scope of the UNI EN 1090-1 standard

Dall'entrata in vigore della norma (UNI EN 1090-1:2011), si è fatto un gran parlere di quale sia il campo di applicazione, e o i prodotti coperti dalla marcatura CE con la suddetta norma, recentemente sul sito della commissione europea http://ec.europa.eu/ nella sezione Frequently Asked Questions on the Construction Products Regulation (CPR), è stato reso pubblico il parere della commissione con un elenco non esaustivo di prodotti su cui è possibile apporre il marchio CE.

From the answer it is clear how the CE marking should be applied whenever:

• The product is covered by the purpose of the UNI EN 1090-1 + A1: 2011 standard, ie the product is not present in the list that you can freely consult in English list of products ,it remains to be understood that this list is not exhaustive and complete
  • it can be seen that many of the exclusions are to be covered by products covered by appropriate harmonized standards, such as in the case of gates certified according to UNI EN 13241-1 or in the case of cold-formed cold-formed steel pipes (tubes) UNI EN 10219-1 or ETAG technical approvals as in the case of mechanical anchors (dowels), different is the case of decorative elements that do not function as structural elements, hooks or crane components because they are subject to machinery pipes and tanks because they are subject to PED directive, these products obviously can not be subject to CE marking according to UNI EN 1090-1.
• The product is a structural construction product under the Construction Products Regulation (UE) 305/2011, which means that:
  • the product is intended to be incorporated permanently in construction works (buildings or works of civil engineering)
  • the product has a structural function in relation to construction work (ie its failure will affect the satisfaction of basic requirement 1 as detailed in Annex I to Regulation (UE) 305/2011.

On the Confindustria site of bergamo https://www.confindustriabergamo.it this distinction is simplified as follows: