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Strength in numbers

Copper and Copper Alloys   |   Aluminium Bronze

DEF STAN 02-834 ~ NES834

CommercialNES834 DEF STAN 834

A Silicon Aluminium Bronze Alloy with high strength and very high corrosion resistance especially in sewater and marine enviroments. Also has good ductility and impact strength. Mainly used in Naval Engineering, Nuclear, Aerospace and Defence Applications.


Chemical Composition

DEFSTAN 02-834(PT2)/1(2000)
Rod, Section, Forging & Forging Stock
Chemical Element % Present
Copper (Cu) balance
Lead (Pb) 0.01 max
Nickel (Ni) 0.1 max
Tin (Sn) 0.1 max
Zinc (Zn) 0.4 max
Manganese (Mn) 0.5 max
Iron (Fe) 0.5 - 0.7
Silicon (Si) 2 - 2.4
Aluminium (Al) 6 - 6.4

Alloy Designations

DEF STAN 02-834

NES834

NES 834

DEF STAN 834

DGS1044


Temper Types

ANNEALED


Supplied Forms

Annealed Bar - Grades 1 and 2 Forgings Class 1, 2, 3

  • Bar
  • Rod
  • Forgings

Mechanical Properties

DEFSTAN 02-834(PT2)/1(2000)
Rod & Section - Up to 50mm
Mechanical Property Value
Proof Stress 275 Min MPa
Tensile Strength 525 Min MPa
Elongation A50 mm 20 Min %
DEFSTAN 02-834(PT2)/1(2000)
Rod & Section - 50mm to 100mm
Mechanical Property Value
Proof Stress 235 Min MPa
Tensile Strength 525 Min MPa
Elongation A50 mm 20 Min %
DEFSTAN 02-834(PT2)/1(2000)
Rod & Section - Over 100mm
Mechanical Property Value
Proof Stress 220 Min MPa
Tensile Strength 525 Min MPa
Elongation A50 mm 20 Min %
DEFSTAN 02-834(PT2)/1(2000)
Forging & Forging Stock - All
Mechanical Property Value
Proof Stress 220 Min MPa
Tensile Strength 525 Min MPa
Elongation A50 mm 20 Min %

Mechanical Properties shown are for annealed material.