The Kawasaki Heavy Industries (KHI) C151 is the first generation electric multiple unit (EMU) rolling stock in operation on the North–South and East–West lines of Singapore's Mass Rapid Transit (MRT) system, manufactured by a consortium led by Kawasaki Heavy Industries (KHI) under Contract 151.

C151 is a copper alloy obtained by adding 0.1% of zirconium to pure copper. It succeeded in improving strength and heat resistance while maintaining high conductivity with a simple component.

Alloy C151 was developed by Olin Brass for specific applications demanding high electrical conductivity and excellent resistance to stress relaxation at elevated temperatures.

C151Sは、近年のハイブリット車、EV車等による大電流用途の電装部品（ジャンクションボックス等）の小型・軽量化に寄与する高い耐応力緩和特性を有しております。 三菱マテリアルのC151（高導電性銅合金）についてご紹介するページです。

The Kawasaki Heavy Industries C151 trains are Singapore's first generation of electric multiple unit (EMU) rolling stock model for the North-South and East-West MRT lines (NSEWL).

Mar 19, 2025 · The Kawasaki Heavy Industries C151 is an electric multiple unit (EMU) train operating on the North South Line (NSL) and East West Line (EWL). Entering service in 1987 in tandem with the opening of Singapore’s Mass Rapid Transit (MRT) system, these trains are the oldest rolling stock currently in operation.

Alloy C151 has excellent solderability, high conductivity, and good strength. C151 has superior softening resistance compared to pure copper C110, which will soften upon heating, limiting the application environment.

Mar 21, 2022 · The C151 End-of-Life Upgrading Project was a partially-completed train refurbishment and PMSM retractioning project undertaken by SMRT on Kawasaki Heavy Industries C151 trains. The project involved replacing the propulsion system, HVAC and auxiliary power system (APS), train management system, brake control and the compressor on each train.

Mar 7, 2022 · Decommissioning of the first-generation North-South and East-West Lines (NSEWL) trains, the Kawasaki Heavy Industries C151, began in June 2020. These trains are the oldest generation of rolling stock in Singapore, and their retirement marked the first time that local transport authorities had to dispose of old rolling stock.

C151 Zirconium Copper Alloy Wire. Alloy C151 has excellent solderability, high conductivity, and good strength. C151 has superior softening resistance compared to pure copper C110, which will soften upon heating, limiting the application evironment.