EN 10357:2022
(Main)Austenitic, austenitic-ferritic and ferritic longitudinally welded stainless steel tubes for the food and chemical industry
Austenitic, austenitic-ferritic and ferritic longitudinally welded stainless steel tubes for the food and chemical industry
This document specifies dimensions, tolerances, materials, internal and external surface characteristics, and marking of stainless steels longitudinally fusion welded tubes for the food and chemical industry.
Austenitische, austenitisch-ferritische und ferritische längsnahtgeschweißte Rohre aus nichtrostendem Stahl für die Lebensmittel- und chemische Industrie
Dieses Dokument legt die Maße, Grenzabmaße, Toleranzen, Werkstoffe, innere und äußere Oberflächeneigenschaften und Kennzeichnung von längsnahtgeschweißten Rohren aus nichtrostenden Stählen für die Lebensmittel- und chemische Industrie fest.
Tubes soudés longitudinalement en acier inoxydable austénitique, ferritique et austéno-ferritique pour l'industrie alimentaire et chimique
Le présent document spécifie les dimensions, les tolérances, les matériaux, les caractéristiques de surface interne et externe, et le marquage des tubes soudés longitudinalement par fusion en acier inoxydable pour l'industrie alimentaire et l'industrie chimique.
Avstenitne, avstenitno-feritne in feritne vzdolžno varjene cevi iz nerjavnega jekla za prehrambno in kemično industrijo
Ta dokument določa mere, tolerance, materiale, značilnosti notranje in zunanje površine ter označevanje vzdolžno varjenih cevi iz nerjavnega jekla za prehrambno in kemično industrijo.
General Information
- Status
- Published
- Publication Date
- 23-Aug-2022
- Technical Committee
- ECISS/TC 110 - Steel tubes, and iron and steel fittings
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 24-Aug-2022
- Due Date
- 13-Aug-2022
- Completion Date
- 24-Aug-2022
Relations
- Effective Date
- 04-Mar-2020
Overview
EN 10357:2022 is a key European standard developed by the European Committee for Standardization (CEN) that specifies the requirements for austenitic, austenitic-ferritic, and ferritic longitudinally fusion welded stainless steel tubes. These tubes are primarily intended for use in the food and chemical industries where hygiene, corrosion resistance, and material quality are crucial. The standard updates and supersedes EN 10357:2013, ensuring compliance with the latest technical and manufacturing developments.
Key aspects such as dimensions, tolerances, material specifications, surface characteristics, marking, and testing procedures are detailed in the document, enabling manufacturers and purchasers to ensure consistent quality and compatibility with industrial processes.
Key Topics
Dimensions and Tolerances:
Specified preferred and alternative external and internal tube diameters and tolerances, including wall thickness and ovality. Straightness deviations must not exceed 2 mm per meter. Dimensions cater to a broad range, from 13 mm up to 254 mm outside diameter.Materials:
Covers materials classified as austenitic, austenitic-ferritic, and ferritic stainless steels in accordance with EN 10028-7. Material selection guidelines support appropriate performance in food-grade and chemical environments.Manufacturing Process:
Tubes must be produced from cold rolled plates or strips using longitudinal fusion welding, with options for filler metal. Surface treatments include pickling, passivation, mechanical polishing, and bright annealing to reduce surface roughness and improve corrosion resistance.Surface Characteristics and Roughness:
Surface roughness requirements differ depending on manufacturing class and tube face (internal or external). For example, internal tube surfaces typically require Ra values below 0.8 to 1.6 µm to maintain hygiene standards.Testing and Inspection:
Testing is in line with EN 10217-7 for austenitic grades and EN 10296-2 for ferritic materials, covering corrosion resistance, dimensional conformity, and surface roughness. Inspection certificates (3.1 per EN 10204) must accompany deliveries, confirming material and test compliance.Marking and Traceability:
Each tube must be clearly marked with manufacturer details, steel grade, dimensions, heat number, execution process symbol, and inspection marks to ensure traceability throughout the supply chain.Packaging and Transport:
Tubes are delivered dry to prevent contamination, with protective PE sleeves for mechanically polished tubes as standard unless otherwise agreed.
Applications
EN 10357:2022 stainless steel tubes are indispensable in industries demanding high hygiene standards and chemical resistance:
Food Industry:
Used for piping systems, heat exchangers, and processing equipment where contamination prevention and corrosion resistance are vital.Chemical Industry:
Suitable for conveying aggressive chemicals and fluids due to their precise material specification and surface finish, minimizing corrosion and contamination.Pharmaceutical and Biotechnology Sectors:
Although not explicitly mentioned, the standard’s strict surface roughness and material requirements support applications requiring sanitary conditions.Pressure Vessels and Process Systems:
Compliance with related pressure and mechanical standards ensures utilization in pressure-containing components and structural applications.
Related Standards
- EN 10028-7: Flat products made of stainless steels for pressure purposes - Material specification.
- EN 10204: Types of inspection documents for metallic products.
- EN 10217-7: Technical delivery conditions for welded stainless steel tubes for pressure purposes.
- EN 10296-2: Technical delivery conditions for welded circular steel tubes for mechanical and general engineering purposes.
- EN ISO 21920-3: Surface texture specification operators for measuring surface roughness.
- EN ISO 1127: Stainless steel tubes-Dimensions, tolerances, and conventional masses.
By adhering to EN 10357:2022, manufacturers and users in the food and chemical industries can ensure stainless steel tubes meet stringent quality, safety, and hygiene standards-minimizing risks, ensuring durability, and facilitating regulatory compliance. This standard is integral to achieving optimal performance in critical applications requiring corrosion resistance and material integrity.
Frequently Asked Questions
EN 10357:2022 is a standard published by the European Committee for Standardization (CEN). Its full title is "Austenitic, austenitic-ferritic and ferritic longitudinally welded stainless steel tubes for the food and chemical industry". This standard covers: This document specifies dimensions, tolerances, materials, internal and external surface characteristics, and marking of stainless steels longitudinally fusion welded tubes for the food and chemical industry.
This document specifies dimensions, tolerances, materials, internal and external surface characteristics, and marking of stainless steels longitudinally fusion welded tubes for the food and chemical industry.
EN 10357:2022 is classified under the following ICS (International Classification for Standards) categories: 23.040.10 - Iron and steel pipes. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 10357:2022 has the following relationships with other standards: It is inter standard links to EN 10357:2013. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 10357:2022 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2022
Nadomešča:
SIST EN 10357:2014
Avstenitne, avstenitno-feritne in feritne vzdolžno varjene cevi iz nerjavnega jekla
za prehrambno in kemično industrijo
Austenitic, austenitic-ferritic and ferritic longitudinally welded stainless steel tubes for the
food and chemical industry
Austenitische, austenitisch-ferritische und ferritische längsnahtgeschweißte Rohre aus
nichtrostendem Stahl für die Lebensmittel- und chemische Industrie
Tubes soudés longitudinalement en acier inoxydable austénitique, ferritique et austéno-
ferritique pour l'industrie alimentaire et chimique
Ta slovenski standard je istoveten z: EN 10357:2022
ICS:
77.140.75 Jeklene cevi in cevni profili Steel pipes and tubes for
za posebne namene specific use
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 10357
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2022
EUROPÄISCHE NORM
ICS 23.040.10 Supersedes EN 10357:2013
English Version
Austenitic, austenitic-ferritic and ferritic longitudinally
welded stainless steel tubes for the food and chemical
industry
Tubes soudés longitudinalement en acier inoxydable Austenitische, austenitisch-ferritische und ferritische
austénitique, ferritique et austéno-ferritique pour längsnahtgeschweißte Rohre aus nichtrostendem Stahl
l'industrie alimentaire et chimique für die Lebensmittel- und chemische Industrie
This European Standard was approved by CEN on 17 July 2022.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10357:2022 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Dimensions and tolerances . 4
4.1 Dimensions and tolerances for tubes . 4
4.2 Straightness . 7
5 Information to be supplied by the purchaser . 7
5.1 General . 7
5.2 Mandatory information . 7
5.3 Options . 7
5.4 Example of an order . 7
5.4.1 Example 1 . 7
5.4.2 Example 2 . 8
6 Materials . 8
7 Manufacturing process, requirements and surface characteristics . 8
8 Testing and inspection documents . 10
9 Marking . 10
10 Packaging and transport . 10
Annex A (informative) Responsibility on selection of material . 11
Bibliography . 12
European foreword
This document (EN 10357:2022) has been prepared by Technical Committee CEN/TC 459 “ECISS –
European Committee for Iron and Steel Standardization” , the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2023, and conflicting national standards
shall be withdrawn at the latest by February 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 10357:2013.
The follow significant technical changes were made in comparison to the previous version:
— Subclause 4.1, Table 1: added new dimension;
— Subclause 4.1, Table 2: deleted series B, changed dimensions in series C;
— Clause 7, Table 3: modified surface characteristics and roughness and symbols.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Through its sub-committee SC 10 “Steel tubes, and iron and steel fittings” (secretariat: UNI),
1 Scope
This document specifies dimensions, tolerances, materials, internal and external surface characteristics,
and marking of longitudinally fusion welded stainless steel tubes for the food and chemical industry.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 10028-7:2016, Flat products made of steels for pressure purposes - Part 7: Stainless steels
EN 10204, Metallic products - Types of inspection documents
EN 10217-7, Welded steel tubes for pressure purposes - Technical delivery conditions - Part 7: Stainless
steel tubes
EN 10296-2, Welded circular steel tubes for mechanical and general engineering purposes - Technical
delivery conditions - Part 2: Stainless steel
EN ISO 21920-3, Geometrical product specifications (GPS) - Surface texture: Profile - Part 3: Specification
operators (ISO 21920-3)
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
4 Dimensions and tolerances
4.1 Dimensions and tolerances for tubes
Dimensions and tolerances for tubes are indicated in Table 1 and Table 2.
a
Table 1 — Preferred dimensions and tolerances (mm)
External tube diameter 13,00 19,00 23,00 29,00 35,00 41,00 53,00 70,00 85,00 104,00 129,00 154,00 204,00 254,00
External diameter
...
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