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  1. ulyssess

    Easy question on ASTM A 36

    "make A36 obsolete" ? A 36 does not cover only plates, but also shapes and bars. ASTM A36 refers to ASTM A6 for a lot of general conditions. ASTM A6 contains a lot of tables for dimensional tolerances, mainly for shapes. If A36 is replaced by a pressure vessel standard then all this is...
  2. ulyssess

    Easy question on ASTM A 36

    The oldest edition of ASTM A36 I own is 00a. In this edition and all of the following it was “yield point”. Also other structural steels like A283 or A572 define “yield point”. Reading ASTM A6 par. 11.7 it is clear that “yield point” is the general rule. Only for extra high-strength quenched...
  3. ulyssess

    EN 13480 and impact test

    Unfortunately I only have edition 2012 at my hand and not the latest edition 2017. In edition 2012 there is no figure B.2.3.2-2 and this was at my knowledge not changed in edition 2017. I can explain the procedure using fig B.2-2. This nomogram is valid for minimum yield strength <= 265 MPa...
  4. ulyssess

    EN 13480 and impact test

    Material tested at 0°C can be used at a lower temperature, see EN 13480 Part 2 Appendix B, Method 2 , subclause B.2.3.
  5. ulyssess

    SA516-70 Heat Treatment Condition Marking Requirements

    “Nprmalized rolled” is not recognized as a heat treatment by ASME, therefore no specific marking for heat treatment. A marking “NR” is not conform to ASME SA 20.
  6. ulyssess

    SA516-70 Heat Treatment Condition Marking Requirements

    Did you check the test report? According ASME SA 20 clause 19 the plate manufacturer shall issue a test report. According subclause 19.3, normalizing, if applied, shall be reported including temperature ranges and times at temperature. If no heat treatment is given in the test report then the...
  7. ulyssess

    &quot;SA 578 LEVEL B&quot; hard punching was not there but present on stenciling marking.

    See SA 578 subclause 13.1 13.1 Plates accepted according to this specification shall be identified by stenciling (stamping) “UT A 578—A” on one corner for Level A, “UT A 578—B” for Level B, and “UT A 578—C” for Level C. The supplement number shall be added for each supplementary requirement ordered.
  8. ulyssess

    I wish to know about ISO 10474 Vs EN 10204

    The replacement of EN 10204 by ISO 19474 was proposed some years ago but rejected by the majority of national members. Some reasons for maintaining EN 10204 as far as I remember: 1) EN 10204 is a harmonized standard under the pressure vessel directive. This is given in Annex ZA and is essential...
  9. ulyssess

    Maximum Deviation/ Tolerance in Mechanical Properties ?

    I don't know which type of material is concerned, but for carbon steel plate see ASME SA20/SA20M subclause 10.3 "10.3 Rounding Procedures—For purposes of determining conformance with the applicable product specification, a calculated value shall be rounded to the nearest 1 ksi [5 MPa] for...
  10. ulyssess

    St1100 - german designation - what kind of steel is this?

    S1100 is not standardised for plates and therefore only available according data sheets from the different manufacturers, see links above. Preheating for welding is recommended (depending on thickness), but PWHT is not possible for Q+T-grades as tempering temperature is often as low as 200°C...
  11. ulyssess

    St1100 - german designation - what kind of steel is this?

    Werkstoffnummer is 1.8942 for quenched and tempered plates https://www.thyssenkrupp-steel.com/media/content_1/publikationen/grobblech_migration/n_a_xtra_xabo/werkstoffblaetter_1/xabo_1100_en.pdf https://www.dillinger.de/d/en/products/proprietary-steels/dillimax/...
  12. ulyssess

    codap 2010

    The elaboration and actualisation of standards and codes need a lot of time and money. Do you really believe the result of this enormous work should be shared for free?
  13. ulyssess

    codap 2010

    https://www.snct.org/export/sites/default/fr/_data/media/documents/publications/appareil_a_pression_codap/Pub_-_Bdc_CODAP_2010_Div_1_et_2_ENGLISH.pdf
  14. ulyssess

    API 5L 46th Ed. Rejection of Line Pipe due to chemistry

    1) "Based on Heat and Product Analyses" means that both heat and product analysis shall meet the requirements. If heat analysis is arbitrary the title should read "based on Product Analyses". I do not know any standard where product analysis overrides the limitation on heat analysis. There is...
  15. ulyssess

    Plate manufacturing process

    The production and testing of S355 plates is quite different to SA516 Grade 70. Some main differences: 1) SA 516 requires a fine grain steel. Most of the S355 grades are not necessarily fine grain treated, e.g. the most common S355J2. 2) The limitations for the chemical composition between SA...
  16. ulyssess

    Carbon Manganese Steel Definition

    DNV-GL RULES FOR CLASSIFICATION Ships Edition July 2019 Part 2 Materials and welding Chapter 2 Metallic materials Section 6 Castings 1.5 Grading system 1.5.1 The castings concerned are classified by chemical composition into three steel types: — carbon and carbon-manganese (C and C-Mn) steel —...
  17. ulyssess

    API 5L Grade B psl1 Pipe, min elongation %

    The type and the size of tensile test specimen shall be indicated in the test certificate, see API-5L 45th edition subclause 10.1.3.2.c). I do not have the most recent 46th edition on hand, so please check if this subclause is still valid.
  18. ulyssess

    S355 J2G3 STEEL EQUIVALENCE

    S355J2G3 was defined in EN 10025:1990. J2 : a minimum Impact Energy of 27 J at -20°C (Charpy-V-specimen in longitudinal direction, average of 3 values) G3 : the delivery condition is normalized for flat products (plates, coils, sheets). For Long products (sections, bars,..) the delivery...
  19. ulyssess

    WRONG YIELD STRESS AT 50C ON VVD

    I do not know the mentionned program. But AD2000-W1:2006 subclause 6.7: The values indicated in material specifications ...for 20°C are valid up to 50° C, the values indicated for 100°c are valid up to 120°C...
  20. ulyssess

    DVM Test Notched Bar Impact Value

    DVM is a designation for a specific impact test specimen in DIN 50115. This standard was issued first in 1952. Last edition is 1994 and is meanwhile historic (withdrawn). The dimensions of the specimen are 55 * 10 * 10 mm. The notch ist 3 mm deep and has a U-form with a radius of 1 mm...

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