BS EN ISO 636:2015 pdf download
BS EN ISO 636:2015 pdf download.Welding consumables —Rods, wires and deposits for tungsten inert gas welding ofnon-alloy and fine-grain steels-Classification.
BS EN ISO 636 specifics requirements for classification of rods and wires in the as- welded condition and in the post-weld heat-treated condition for tungsten inert gas welding of non- alloy and fine-grain steels with a minimum yield strength of up to 500 MPa or a minimum tensile strength of up to 570 MPa.
This International Standard Is a combined specification providing classification utilizing a system based upon the yield strength and the average impact energy of 47 J of all-weld metal or utilizing a system based upon the tensile strength and the average impact energy of 27 j of all-weld metal.
a) Paragraphs and tables which carry the suffix letter A are applicable only to rods and wires classified to the system based upon the yield strength and the average impact energy of 47 I of all- weld metal In accordance with this International Standard.
b) Paragraphs and tables which carry the suffix letter B” are applicable only to rods and wires classified to the system based upon the tensile strength and the average impact energy of 27 1 of all-weld metal in accordance with this International Standard.
c) Paragraphs and tables which have neither the suffix letter A’ nor the suffix letter “B are applicable to all rods and wires classified in accordance with this International Standard.
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.
150 544. Welding consumables — Technical delivery conditions for filler materials and fluxes — 7).’pe of product, dimensions, tolerances and markings
ISO 13916, Welding — Guidance on the measurement of preheotln,q temperature. interpass temperature and preheat maintenance temperature
ISO 14175, Welding consumables — Gases and gas mixturesforfuslon welding and allied processes ISO 14344, Welding consumables — Procurement offiller materials and fluxes
ISO 15792-1:2000, Welding consumables — Test methods — Part 1: Test methods for all-weld metal test specimens in steel, nickel and nickel alloys. Amended by ISO 15792-1:2000/Amd 1:2011
1S080000-1:2009. Quantities and units — Part I: General. Corrected by ISO 80000-1:2009/Cor 1:2011
3 Classification
Classification designations are based upon two approaches to indicate the tensile properties and the impact properties of the all-weld metal obtained with rods or wires. The two designation approaches include additional designators for some other classification requirements, but not all as will be clear from the following sections. In most cases, a given commercial product can be classified to the
7 Rounding procedure
For the purposes of determining compliance with the requirements of this International Standard, the actual test values obtained shall be subject to ISO 8OOOO1:2OO9, 8.3. Rule A. lithe measured values are obtained by equipment calibrated in units other than those of this International Standard. the measured values shall be converted to the units of this International Standard before rounding. If an arithmetic average value Is to he compared to the requirements of this International Standard, rounding shall be done only after calculating the arithmetic average. If the test method cited in Clause 2 contains instructions for rounding that conflict with the instructions of this International Standard, the rounding requirements of the test method standard shall apply. The rounded results shall fulfil the requirements of the appropriate table for the classification under test.
8 Retests
If any test fails to meet the requirements, that test shall be repeated twice. The results of both retests shall meet the requirements. Specimens for the retest could be taken from the original test assembly or from a new test assembly. For chemical analysis. retests need be only for those specific elements that failed to meet their test requirements. lithe results of one or both retests fail to meet the requirements, the material under test shall be considered as not meeting the requirements of this specification for that classification.
In the event that during preparation or after completion of any test it is clearly determined that prescribed or proper procedures were not followed during preparation of the weld test assembly or test specimen(s) or in conducting the tests, the test shall be considered invalid without regard to whether the test was actually completed or whether the test results met or failed to meet the requirements. That test shall be repeated following proper prescribed procedures. In this case, the requirement for doubling the number of test specimens does not apply.
9 Technical delivery conditions
Technical delivery conditions shall meet the requirements in ISO 544 and ISO 14344.
