International Nuclear Services
SWTC Demonstration of Avoidance of Brittle Fracture
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This specification describes the test and reporting requirements for a mechanical property test regime, required to gather data for SWTC - 255 Transport Package components.
The program of work covers Fracture Toughness, Residual Stress Measurement, Instrumented Fracture Toughness and Tensile Testing.
There is a UK strategic requirement for an IAEA SSR-6 compliant transport package, known as the SWTC-255, that will enable the transport of low heat generating waste from storage sites across the UK to a Geological Disposal Facility.
An Integrated Project Team (IPT), consisting of NTS, NWS and NDA are leading the design of the SWTC-255.
A programme of work has been agreed with NWS to develop the package through preliminary design with the aim of achieving a Technical Readiness Level (TRL) of 4.
The SWTC-255 package body and lid are currently specified as being manufactured by machining of Cast Martensitic Steel (CMS) to BS EN 10213:2007 Steel No.
1.6982.
Several manufacturability studies have been completed that concluded this was the preferred material to use for the SWTC-255.
NTS commissioned a review of previous material studies to inform the development of a brittle fracture case for the SWTC-255.
The report recommended a program of additional testing to establish fracture toughness properties of the CMS.
Suppliers are invited to respond to our open procedure via the Atamis e-procurement system at https://one-nda.force.com/s/Welcome
What the supplier must deliver
Test regime, required to gather data
test regime, required to gather data for SWTC.
An Integrated Project Team (IPT), consisting
An Integrated Project Team (IPT), consisting of NTS, NWS and NDA are leading the design of the SWTC-255.
Derived from the notice text — always confirm against the original documents.
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Contains public sector information licensed under the Open Government Licence v3.0. Source data © Crown copyright.
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