[ Standards ]
[ Standards ]
ASTM E23 and ISO 148-1 are the governing guidelines for Charpy impact testing of V-notch metallic materials . There are three main characteristics that can be measured by a Charpy Impact Test : total absorbed energy , lateral expansion , and percent shear fracture area .
- Metallurgical testing summary In high-specification work , the need to determine the chemical , mechanical , and material properties of cast metal is crucial in ensuring that the customer receives a product that meets their design requirements . OES , tensile , hardness , impact , corrosion , metallography , and ferrite prediction testing are all essential methods to satisfy the stringency of highspecification castings . The governing bodies that encompass the standards for these tests are continually audited and revised to ensure that industry repeatability and accuracy are maintained .
Source inspection A source inspector from the Notified Body is an individual who is required by a customer or the engineering group overseeing the project to witness milestones in the creation of the casting . Common occurrences are some of the following operations :
•• Contract review
•• Melt and pouring
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Stamping of heat numbers for traceability – castings and test material
•• Heat treatment
•• Welding
•• Post-weld heat treatment
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All inspection operations – VT , RT , MT , PT , dimensional , etc .
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Endorsement of the certification package
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Shipping operations
QA Material certifications including dual certification Materials produced to the pressure vessel codes and directives require rigorous certification . Following the tenants of EN10204 for the inspection and certification documents is required for all PED activities . A common request is to produce castings that meet the dual certification requirements of both ASME and PED / UK PESR . Overlapping chemistry ranges , as well as congruent mechanical properties , are needed for dual certification .
Application and vessel manufacturer - Hydro-Thermal ’ s Direct Steam Injection ( DSI ) heaters Hydro-Thermal is a global leader in ondemand steam injection fluid heating , cooking , and processing systems . Direct Steam Injection ( DSI ) technology revolutionizes how industries handle heat transfer . By mixing steam and processing fluids directly , DSI heaters deliver precise and consistent results across various industries , including ethanol , chemicals , wastewater treatment , food and beverage , and meat and poultry processing all in need of different levels of pressure governance . Direct Steam Injection ( DSI ), offers several advantages over traditional heat exchangers . DSI heaters modulate steam at the injection point , providing exceptional heat transfer efficiency . This results in significant energy cost savings , efficient control of process fluids , and the ability to handle high-viscosity slurries without burn-on .
“ All NDT testing methods on both ASME or PED require highly trained , evaluated , and certified personnel .”
The importance of Hydro-Thermal ’ s PED Certification Hydro-Thermal ’ s holds a 2014 / 68 / EU PED certification promoting conformance as well as safety . This certification process is conducted through an authorized equipment insurer , ensuring that every step meets stringent standards . Vessels of specific sizes , adhering to prescribed rules and documentation , are manufactured to ensure compliance and guarantee that our products are built to last and perform at their best . Hydro-Thermal has been delivering its technology of directly injecting steam into any fluid to heat that fluid to an exact temperature worldwide for 90 years . To deliver in Europe and in other countries , its quality and engineering department maintains the ISO 9001 quality standard , a design file , and proper documentation .
“ Our vendors of the pressure vessel are cast by Stainless Foundry & Engineering . Hydro-Thermal delivers about 40 % of its product overseas ( EU ) and that is a large part of its growth plan , especially recently with its expanded product offering due to new product development for pressure service . They work closely with the technical staff in designing patterns and , ultimately , their castings ,” explains Jim Zaiser , President and CEO - Hydro-Thermal Corporation . “ Ultimately it ’ s the partnership of these two firms in working together to provide the best solution compliment to the needs of their customers worldwide that has been successful .”
Conclusion Choices with the pressure directives and codes are available for both EU and UK requirements as well as American codes . Choices for customer applications follow one of the below scenarios :
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Castings are to be supplied in accordance with the EU ’ s Pressure Equipment Directive 2014 / 68 / EU PED , or :
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Castings are to be supplied in accordance with the UK ’ s Pressure Equipment ( Safety ) Regulation 2016 / 1105 , or :
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When jobs require a PMA to nonharmonized materials ( ASME , ASTM , etc .) to either of the above directives / regulations , this must be attached every time with the customer ’ s purchase orders . The purchase order must also reference one of the first two bulleted clauses above in addition to the PMA reference .
Following the directives is critical , as there will be more requirements governing our production of high-spec castings in the future .
About the author
Michael Porfilio is Director of Quality and Technical Services at Stainless Foundry & Engineering , Inc . He has been servicing and working in the foundry industry since 1980 , primarily in Metallurgy , Quality Management , Operations , Sales , and as an educator . Michael is NDE Level III and ASME NQA-1 Lead rep .
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