Marking of material and components for heat exchangers Prepared and edited by Materials & Chemistry Centre, Tumba, Sweden Page No. of pages Revision No. Date 1 7 10 2014-04-28 COPYRIGHT Alfa Laval AB 2014. This document and its contents must not be copied, reproduced, transmitted or disclosed to any third party without the consent of Alfa Laval AB. CONTENTS 1 Scope - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2 2 Material categories - - - - - - - - - - - - - - - - - - - 2 2.1 Pressure equipment material except fasteners and flanges- - - - - - - - - - - - 2 2.1.1 The material manufacturer s marking / I. C. 3.1 - - - - - - - - - - - - - - - - 2 2.1.2 Re-marking / I. C. 3.1- - - - - - - - - - - - - - 3 2.1.3 The material manufacturer s marking / T. R. 2.2 - - - - - - - - - - - - - - - - 3 2.1.4 Re-marking / T. R. 2.2 - - - - - - - - - - - - - 3 2.2 Fasteners - - - - - - - - - - - - - - - - - - - - - - - - - - 3 2.2.1 The material manufacturer s marking / I. C. 3.1 - - - - - - - - - - - - - - - - 3 2.2.2 Re-marking / I. C. 3.1- - - - - - - - - - - - - - 4 2.2.3 The material manufacturer s marking / T. R. 2.2 - - - - - - - - - - - - - - - - 4 2.2.4 Re-marking / T. R. 2.2 - - - - - - - - - - - - - 4 2.3 Flanges - - - - - - - - - - - - - - - - - - - - - - - - - - - -5 2.3.1 The manufacturer s marking / I. C. 3.1- -5 2.3.2 Re-marking / I. C. 3.1- - - - - - - - - - - - - -5 2.3.3 The manufacturer s marking / T.R. 2.2- -6 2.3.4 Re-marking / T.R. 2.2 - - - - - - - - - - - - - -6 2.4 Pipes - - - - - - - - - - - - - - - - - - - - - - - - - - - - -6 2.4.1 Marking - - - - - - - - - - - - - - - - - - - - - - -6 2.5 Linings, Rings and Collars- - - - - - - - - - - - - -6 2.6 Casted parts - - - - - - - - - - - - - - - - - - - - - - - -7 2.7 Welded accessories- - - - - - - - - - - - - - - - - - -7 2.8 Non pressure equipment - - - - - - - - - - - - - - -7 2.8.1 The material manufacturer s marking - -7 3 Permanently joined assemblies - - - - - - - - - -7 4 Marking method- - - - - - - - - - - - - - - - - - - - - -7
Page 2 Revision No. 10 Date 2014-04-28 1. Scope It must be possible to identify a material, requiring a test certificate, by the certificate issued. Required marking of raw material as well as the re-marking of material that is divided is described in the following parts. The following information shall be stated on the drawings: Marking according to The position of the marking shall be indicated with an arrow on the drawing. Note! Heat numbers and heat codes may only contain alphanumeric characters. 2. Material categories Paragraph 2.1-2.4 shall individually be applied, based on the product designation on the drawing. 2.1 Pressure equipment material except fasteners, pipes, flanges and casted parts For pressure equipment material, where an inspection document according to EN 10204 is required, the material must be marked according to paragraph 2.1.1 (for Inspection Certificate 3.1) and 2.1.3 (for Test Report 2.2) and be in compliance with the information in the certificate. When dividing or machining of the material, see paragraph 2.1.2 (for I. C. 3.1) and 2.1.4 (for T. R. 2.2). be carried out or verified by the purchasers authorized inspection representative, as specified by Alfa Laval, or the inspector designated in the official regulations. 2.1.1 The material manufacturer s marking / I. C. 3.1 * Test no. (only for plate), see note 1 * The manufacturer s inspectors stamp Additional marking, such as treatment conditions etc., shall also be applied when required by the material specification.
Page 3 Revision No. 10 Date 2014-04-28 2.1.2 Re-marking / I. C. 3.1 Material which are machined or divided so that the marking disappears must be re-marked. Therefore the drawing must state where the marking shall be placed with regard to machining. * Test no. (only for plate), see note 1 * A re-stamping certificate has to be issued making the link between original marking and marking stamped on divided parts. 2.1.3 The material manufacturer s marking / T. R. 2.2 2.1.4 Re-marking / T. R. 2.2 * The processors identification/ trademark or alternatively the control stamp from the re-marker. 2.2 Fasteners For fasteners, for example bolts, screws and nuts, where an inspection document according to EN 10204 is required, the material must be marked according to paragraph 2.2.1 (for Inspection Certificate 3.1) and 2.2.3 (for Test Report 2.2) and be in compliance with the information in the certificate. When dividing or machining of the material, see paragraph 2.2.2 (for I. C. 3.1) and 2.2.4 (for T. R. 2.2). be carried out or verified by the purchasers authorized inspection representative, as specified by Alfa Laval, or the inspector designated in the official regulations. 2.2.1 The material manufacturer s marking / I. C. 3.1 or property class For fasteners <M24 / 1-8UNC, the Charge/Heat no. marking may be given on the package/container.
Page 4 Revision No. 10 Date 2014-04-28 2.2.2 Re-marking / I. C. 3.1 Material which are machined or divided so that the original marking disappears must be re-marked. Therefore the drawing must state where the marking shall be placed with regard to machining. or property class For fasteners <M24 / 1-8UNC, the Charge / Heat no. marking may be given on the package/container. 2.2.3 The material manufacturer s marking / T. R. 2.2 or property class 2.2.4 Re-marking / T. R. 2.2 or property class * The processors identification/ trade mark or alternatively the control stamp from the re-marker. 2.3 Flanges The flanges shall be marked according to the relevant international product standard. However, as a minimum, the required marking in 2.3.1-2.3.4, as applicable, shall be included. For flanges, where an inspection document according to EN 10204 is required, the material must be marked according to paragraph 2.3.1 (for Inspection Certificate 3.1) and 2.3.3 (for Test Report 2.2) and be in compliance with the information in the certificate. When dividing or machining of the material, see paragraph 2.3.2 (for I. C. 3.1) and 2.3.4 (for T. R. 2.2). be carried out or verified by the purchasers authorized inspection representative, as specified by Alfa Laval, or the inspector designated in the official regulations.
Page 5 Revision No. 10 Date 2014-04-28 2.3.1 The manufacturer s marking / I. C. 3.1 * Charge/Heat no. and Test no., when used * The manufacturer s inspectors stamp Additional marking, such as treatment conditions etc., shall also be applied when required by the material specification. 2.3.2 Re-marking / I. C. 3.1 Material which are machined or divided so that the marking disappears must be re-marked. Therefore the drawing must state where the marking shall be placed with regard to machining. * Test no. (only for plate), see note 1 2.3.3 The manufacturer s marking / T. R. 2.2 * The manufacturer s inspectors stamp Additional marking, such as treatment conditions etc., shall also be applied when required by the material specification.
Page 6 Revision No. 10 Date 2014-04-28 2.3.4 Re-marking / T.R. 2.2 2.4 Pipes For pipes, when an inspection certificate according to EN 10204 is required, the material must be marked according to paragraph 2.4.1 (for 3.1 certificate) and be in compliance with the information in the certificate. be carried out or verified by the purchasers authorized inspection representative as specified by Alfa Laval or the inspector designated in the official regulations. 2.4.1 Marking All lengths of pipes shall be supplied with a marking including at least the requirements of: - For seamless austenitic stainless steel pipes: * ASME II part A specification SA999/SA999M paragraph 26, specification SA312/SA312M paragraph 17 * DIN 17458 paragraph 7 * AD2000 Merkblatt W2 paragraph 5 - For SA106 gr B * ASME II part A specification SA106 paragraph 24 and SA530/SA530M paragraph 24 + symbol test pressure according to table 5 of SA106 - For SA333 gr 6 * ASME II part A specification SA333 paragraph 16 and SA999/SA999M paragraph 26 - For St 35-8 * Recommendations of DIN 17175 paragraph 9 and AD2000 Merkblatt W4 paragraph 4 2.5 Linings, rings and collars for Compabloc Each part shall be marked with at least: * Article number * Heat number * Alfa Laval material code for example IL(SA240gr316L)
Page 7 Revision No. 10 Date 2014-04-28 2.6 Casted parts (heads for Compabloc) Each part shall be marked with at least: * Manufacturers trade mark (symbol or stamp) * Grade in the 3 specifications (LCB QT / GP240GH QT / G20Mn5 QT) * Heat number * Type of module of COMPABLOC (for example CP50, CP75,...) This marking will be obtained by casting (ink marking is not allowed). Marking location is specified on the drawing 2.7 Welded accessories for Compabloc Each part shall be marked with at least: * Article number * Heat number * Material designation, for example (SA516gr60) 2.8 Non pressure equipment For material, where a declaration of compliance / 2.1 or test report / 2.2 according to EN 10204 is required, and if marking is required and stated on the drawing, the material must be marked according to paragraph 2.8.1 and be in compliance with the information in the inspection document. 2.8.1 The material manufacturer s marking, that is material no. alternatively material name, for example 1.4401 alt. 316. 3. Permanently joined assemblies Permanently joined assemblies shall be marked with a unique code on the assembly. A certificate which refers to the unique marking code shall be issued, listing all materials and reference to corresponding material certificates. 4. Marking method Regarding marking methods, the following shall be considered: * Up to 6 mm material thickness, the marking may be executed by low stress stamping, stencilling, ink, etching or laser marking. * Above 6 mm material thickness, the marking is executed by steel punching, using minimum 6 mm height and 0.5 mm depth. If 6 mm height is not possible, the marking size shall be adapted to the space available. The marking method must not deform the material / component, for example thin-walled tubes/pipes. The marking shall be durable.