# SWTC Demonstration of Avoidance of Brittle Fracture

> A sourced UK public sector contract award published by International Nuclear Services.

## Key facts

- Buyer: [International Nuclear Services](/buyers/international-nuclear-services/contract-awards)
- Tender value: £150,000
- Published: 2 May 2024
- Contract start: 3 June 2024
- Contract end: 12 May 2025
- Stage: open_tender
- Procurement category: services
- Notice ID: ddcdf672-6e3e-481a-913c-497f175728f0-747113
- OCID: ocds-b5fd17-bcd650e1-707c-44b4-b182-7ba4d23d371c

## Description

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

## Related contract awards

- [PEGASUS ACT Timber Testing](/contracts/ocds-b5fd17-8d5932d6-4d32-4d1a-bff4-682b03eb0853) — International Nuclear Services
- [K-class tie down nuts and bolts](/contracts/ocds-b5fd17-c73a0c42-8e5f-42cb-8ba1-e44260d75080) — International Nuclear Services
- [Peer Review Development of Disposal Container Transport Container Sub-Systems](/contracts/ocds-b5fd17-0d0b8106-b892-49ff-8c36-7e05c8d61b30) — International Nuclear Services
- [Provision of Type 1 Adapter Plates](/contracts/ocds-b5fd17-96712d8c-4ee8-4915-9df3-14fe1234b623) — International Nuclear Services
- [Expression of Interest: Refurbishment and upgrade of Community Hub roof, refurbishment of 2No\. toilet blocks and construction of new toilet facilities](/contracts/ocds-b5fd17-70463f6d-3eac-44fe-98e8-44f708164081) — Padstow Town Council
- [Apprenticeships Training Dynamic Marketplace](/contracts/ocds-b5fd17-59d47106-465e-4306-bc16-9ca86277e1ca) — GOVERNMENT COMMERCIAL AGENCY
- [Taxi and MPV \(1-8 seats\) Passenger Assistant - Taxi and MPV \(1-8 seats\) Passenger Assistant](/contracts/ocds-b5fd17-d1f8674f-6dd8-4a46-998e-a453bcd98938) — East Sussex County Council
- [Taxi and MPV \(1-8 seats\) Passenger Assistant - Taxi and MPV \(1-8 seats\) Passenger Assistant](/contracts/ocds-b5fd17-7deb34b9-f0a4-46d0-b6b9-e4d79e05ffca) — East Sussex County Council
- [Translation & Interpreting Service](/contracts/ocds-b5fd17-54075a52-9d7d-4c1f-b548-9dc63dcc95cb) — London Borough of Waltham Forest
- [QBE082 09:00 2026-08-21 Haverhill to Sir Peter Hall School, Bury St Edmunds - 4-seater vehicle required - AWARD](/contracts/ocds-b5fd17-3fe11212-9db7-4019-8387-e0a616618a82) — Suffolk County Council Passenger Transport
- [QOC931 09:00 2026-08-21 Onehouse & Newmarket to InToto Education, Fordham, Ely, Cambs - 4-seater vehicle & Passenger Assistant required - AWARD](/contracts/ocds-b5fd17-88df1231-5adf-4f73-b42b-71e8931d53ab) — Suffolk County Council Passenger Transport
- [SEN20061-SEN-W/C TAXI-DOROTHY GOODMAN UPPER BARWELL LANE](/contracts/ocds-b5fd17-759dbe2b-b549-4a79-9512-eb9eafef5895) — Leicestershire County Council

## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/ddcdf672-6e3e-481a-913c-497f175728f0-747113)