Bronzes

HIDURON 130, HIDURON 191, HIDUREL 5

Langley Alloys was founded in 1938 from the special copper alloys division of High Duty Alloys Limited, and developed into a fully integrated metals production company on a site in Buckinghamshire west of London.

During the Second World War the company was responsible for the several successful alloy developments, including the high strength naval alloy HIDURAX SPECIAL and the significant copper-based bearing alloy HIDUREL 5 which was used for the major engine bearing in the Merlin engine which powered the Spitfire aircraft.

The company continued to develop and by the 1990's, Langley Alloys had gained a considerable technical reputation for a large number of alloy inventions including the HIDURON range of high-strength cupronickels which are the only high strength copper alloys with a proven record of resistance to hydrogen embrittlement.

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Bronze HIDURON 130
Bronze HIDURON 191
Bronze Hidurel 5
Bronze

Alloy	Common Name	Related Specifications			Tensile Strength	Proof Stress	Elongation
Alloy	Common Name	British	European	United States	Tensile Strength	Proof Stress	Elongation
HIGH STRENGTH CUPRONICKELS
HIDURON 130	HIDURAX SPECIAL	DTD 900/4805	DIN 2.1504		850 [123.5] (≤65mm)770 [111.6] (>65mm)	630 [91.3 ] (≤65mm)555 [80.5 ] (>65mm)	10
HIDURON 191	835	DEF STAN 02-835, NES 835		C72420 DOD-C-24676 EB 4223A	725 [105.1] (≤125mm)710 [102.9] (>125mm)	430 [64.5 ] (≤125mm)400 [58 ] (>125mm)	18
HIGH CONDUCTIVITY BRONZES
HIDUREL5		BS B25, BS2 B25, DTD 498, MSRR 8501	CW111C, 2.0855	UNS C64700	585 [84.8]	430 [62.3]	15

HIDURON^® is a registered Trade Mark of Langley Alloys Ltd