UNI EN 10253-4 : 2009

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BUTT-WELDING PIPE FITTINGS - PART 4: WROUGHT AUSTENITIC AND AUSTENITIC-FERRITIC (DUPLEX) STAINLESS STEELS WITH SPECIFIC INSPECTION REQUIREMENTS

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Published date: 11-03-2009

Publisher: Ente Nazionale Italiano di Unificazione (UNI)

Table of Contents - (Show below) - (Hide below)

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Classification of grades and designation
6 Information to be supplied by the purchaser
7 Resistance to internal pressure
8 Manufacturing process
9 Technical requirements
10 Appearance and internal soundness
11 Dimensions and tolerances
12 Inspection
13 Sampling
14 Test methods
15 Marking
16 Handling and packaging
Annex A (normative) - Structural dimensions of fittings
Annex B (normative) - Determination of pressure factors
        and wall thickness
Annex C (normative) - Pressure factor tables for fittings
        of type A
Annex D (informative) - Wall thickness tables for
        fittings of type B
Annex ZA (informative) - Relationship between this
         European Standard and the Essential Requirements
         of the EU Directive 97/23/EC
Bibliography

Abstract - (Show below) - (Hide below)

This European Standard specifies the technical delivery requirements for seamless and welded butt-welding fittings (elbows, concentric and eccentric reducers, equal and reducing tees, caps) made of austenitic and austenitic-ferritic (duplex) stainless steel which are intended for pressure and corrosion resisting purposes at room temperature, at low temperature or at elevated temperatures.

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Committee	CT 700
Development Note	Supersedes UNI ISO 5251. (03/2009)
Document Type	Standard
ISBN
Pages
Published
Publisher	Ente Nazionale Italiano di Unificazione (UNI)
Status	Current
Supersedes	UNI ISO 5251 : 1982

International Equivalents – Equivalent Standard(s) & Relationship - (Show below) - (Hide below)

Equivalent Standard(s)	Relationship
EN 10253-4:2008/AC:2009	Identical

Standards Referencing This Book - (Show below) - (Hide below)

EN ISO 14284:2002	Steel and iron - Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996)
EN 10002-1 : 2001	METALLIC MATERIALS - TENSILE TESTING - PART 1: METHOD OF TEST AT AMBIENT TEMPERATURE
EN 10052:1993	Vocabulary of heat treatment terms for ferrous products
EN ISO 8493 : 2004	Metallic materials - Tube - Drift-expanding test (ISO 8493:1998)
EN 10079:2007	Definition of steel products
EN 10027-2:2015	DESIGNATION SYSTEMS FOR STEELS - PART 2: NUMERICAL SYSTEM
EN 10216-5:2013	Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5: Stainless steel tubes
EN 10002-5:1991	Metallic materials - Tensile testing - Part 5: Method of testing at elevated temperature
EN ISO 377:2017	Steel and steel products - Location and preparation of samples and test pieces for mechanical testing (ISO 377:2017)
EN 10168:2004	Steel products - Inspection documents - List of information and description
EN ISO 2566-1:1999	Steel - Conversion of elongation values - Part 1: Carbon and low alloy steels (ISO 2566-1:1984)
ISO 8493:1998	Metallic materials Tube Drift-expanding test
EN ISO 3166-1:2014	Codes for the representation of names of countries and their subdivisions - Part 1: Country codes (ISO 3166-1:2013)
ISO 6708:1995	Pipework components Definition and selection of DN (nominal size)
EN 10088-2:2014	STAINLESS STEELS - PART 2: TECHNICAL DELIVERY CONDITIONS FOR SHEET/PLATE AND STRIP OF CORROSION RESISTING STEELS FOR GENERAL PURPOSES
EN 473:2008	Non-destructive testing - Qualification and certification of NDT personnel - General principles
EN 910 : 1996	DESTRUCTIVE TESTS ON WELDS IN METALLIC MATERIALS - BEND TESTS
EN 10028-7:2016	Flat products made of steels for pressure purposes - Part 7: Stainless steels
EN ISO 1127:1996	Stainless steel tubes - Dimensions, tolerances and conventional masses per unit length (ISO 1127:1992)
EN 10045-1 : 1990	METALLIC MATERIALS - CHARPY IMPACT TEST - PART 1: TEST METHOD
EN ISO 6708:1995	Pipework components - Definition and selection of DN (nominal size) (ISO 6708:1995)
EN 10217-7:2014	Welded steel tubes for pressure purposes - Technical delivery conditions - Part 7: Stainless steel tubes
ISO 15614-1:2017	Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
EN 13480-3:2017	Metallic industrial piping - Part 3: Design and calculation
EN 10272:2016	Stainless steel bars for pressure purposes
EN 10021:2006	General technical delivery conditions for steel products
ISO 5251:1981	Stainless steel butt-welding fittings
ISO 3651-2:1998	Determination of resistance to intergranular corrosion of stainless steels — Part 2: Ferritic,austenitic and ferritic-austenitic (duplex) stainless steels — Corrosion test in media containing sulfuric acid
ISO 2566-1:1984	Steel Conversion of elongation values Part 1: Carbon and low alloy steels
EN 10204:2004	Metallic products - Types of inspection documents
EN ISO 3651-2 : 1998	DETERMINATION OF RESISTANCE TO INTERGRANULAR CORROSION OF STAINLESS STEELS - FERRITIC, AUSTENITIC AND FERRITIC-AUSTENITIC (DUPLEX) STAINLESS STEELS - CORROSION TEST IN MEDIA CONTAINING SULFURIC ACID
EN 10027-1:2016	Designation systems for steels - Part 1: Steel names
ISO 3419:1981	Non-alloy and alloy steel butt-welding fittings
ISO 3166-1:2013	Codes for the representation of names of countries and their subdivisions Part 1: Country codes
EN 10020:2000	Definition and classification of grades of steel
ISO 15607:2003	Specification and qualification of welding procedures for metallic materials General rules
EN 10266:2003	Steel tubes, fittings and structural hollow sections - Symbols and definitions of terms for use in product standards
EN 1418:1997	Welding personnel - Approval testing of welding operators for fusion welding and resistance weld setters for fully mechanized and automatic welding of metallic materials
ISO 377:2017	Steel and steel products — Location and preparation of samples and test pieces for mechanical testing
ISO 14284:1996	Steel and iron — Sampling and preparation of samples for the determination of chemical composition
EN ISO 15607:2003	Specification and qualification of welding procedures for metallic materials - General rules (ISO 15607:2003)
EN 10088-1:2014	Stainless steels - Part 1: List of stainless steels
ISO 1127:1992	Stainless steel tubes Dimensions, tolerances and conventional masses per unit length
EN 287-1:2011	Qualification test of welders - Fusion welding - Part 1: Steels

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