Quality Assessment of Weldable Steel Mark P355NH from Decompression Chamber Construction for Diving

Romulus Pascu; Radu Alexandru Roşu; Iuliana Duma; Horia Dascau

doi:10.4028/www.scientific.net/AMM.217-219.2381

Paper Titles

Mechanical Properties of AlMgB₁₄ Prepared by Field-Activated, Pressure-Assisted Synthesis Process
p.2357

Constitutive Equations for a Model of Nonlocal Plasticity which Complies with a Nonlocal Maximum Plastic Dissipation Principle
p.2362

A Consistent Formulation of Constitutive Relations for a Model of Nonlocal Viscoplasticity
p.2367

Prediction of Surface Fracture of 6061 Al Processed by Equal-Channel Angular Pressing
p.2373

Quality Assessment of Weldable Steel Mark P355NH from Decompression Chamber Construction for Diving
p.2381

Influence of Low-Level Voltage in Pulse ECM on Electrode Wear and Machining Accuracy
p.2388

Effect of GaN Cap Layer on the Electrical Properties of AlGaN/GaN HEMT
p.2393

A Simple and Sensitive Spectrophotometric Method for the Determination of Trace Ruthenium with its Catalytic Effect on the Oxidation of Rhodamine 6G by KBrO₃ in Micellar Media
p.2397

Experimental Study on Friction Damping Characteristics of Metallic Materials with Non-Conforming Contact
p.2402

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 217-219Quality Assessment of Weldable Steel Mark P355NH...

Quality Assessment of Weldable Steel Mark P355NH from Decompression Chamber Construction for Diving

Abstract:

Non-alloyed P355NH steel according to EN 10028-3:2003 belongs to a group of fine-grained steels for pressure vessels being used in welded construction at decompression chamber for divers. Values of the chemical, structural and mechanical characteristics and steel toughness experimentally determined fit the analyzed steel in P355NH steel group according to EN 10028-3:2003. The toughness of the analyzed steel at the test temperature of -30°C is characterized by high values of fracture energy KV in longitudinal direction between 48 and 86 J and on transverse direction between 17 and 34J. Steel toughness at the test temperature of -30°C required by ABS standard (in Section 4/5.3 and Table 1) provides for breaking energy KV of min. 35J, with ductile fracture surfaces, value that is not respected at some lots of the three batches (A, B, C) of steel. Finally, based on the direct correlation established between HV10 hardness of the fine structure and the toughness it was made a selection of the lots of non-alloy steel P355NH which correspond to ABS norm for welded construction of the decompression chamber for divers

You might also be interested in these eBooks

Advanced Materials and Process Technology

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 217-219)

Pages:

2381-2387

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.217-219.2381

Citation:

Cite this paper

Online since:

November 2012

Authors:

Romulus Pascu, Radu Alexandru Roşu, Iuliana Duma, Horia Dascau

Keywords:

Hardness, Mechanical Property, Pressure Vessels

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Ham S., Garz, L: The history of the atmospheric Diving Best Pub. Co, ISBN 064133225x, 1995, USA

Google Scholar

[2] xxx Pressure Equipment Directive 97/23/Ec, 1999, Belgium

Google Scholar

[3] Pascu, D.R, Roşu, R: Technical report on the analysis of experimental results on fine-grained steels, ISIM, 2011, Timişoara, Romania

Google Scholar

[4] xxx Specifications for flat products made of steels for pressure purposes, weldable fine grain steels, normalized, EN10028-3:2003, Bruxelles, Belgium

DOI: 10.3403/30187559

Google Scholar

[5] Safta I., V: Testing technology and strength of welded joints Publisher Sudura, 2006, Timişoara, Romania

Google Scholar