MATERIAL DESCRIPTION

Alloy K500 is a precipitation age hardenable nickel-copper alloy. The alloy is non magnetic to temperatures less than -101°C. The combination of low magnetic permeability, high strength and good corrosion resistance has been used to advantage in a number of applications, notably oil-well surveying equipment and electronic components.

The low temperature properties of Alloy K500 are outstanding. Tensile and yield strengths increase with decrease in temperature while ductility and toughness are virtually unimpaired. No ductile-to-brittle transformation occurs even at temperatures as low as -200°C, thus the alloy is suitable for many cryogenic applications.

APPLICATIONS

Typical area of usage is pump shafts and oil well tools.

Heat Treatment
Solution annealing: 980 – 1040°C. Age hardened: 540 – 600°C.

Weldability
Very good.

CHEMICAL COMPOSITION

Weight % C SI MN NI+CO CU AL TI S P FE
MIN.  63,00  27,00  2,30  0,35
MAX.  0,25  0,50  1,50  33,00  3,15  0,85  0,01  0,03  2,00

Product Standards: ASTM B865, DIN 17754, AMS 4676
Approvals: NACE MR0175

Mechanical Properties: BAR

Yield strength
RP0.2, MPA
Tensile strength
RM, MPA
Elongation
[%]
Hardness
[HB]
Impact, Charpy-V, -40ºC
[J]
 ≥ 620  ≥ 900  ≥ 17  ≤ 250

ROUND BAR STOCK

DIA KG/M
38,1 mm 9.9
44,45 mm 13.5
50,8 mm 17.6
63,5 mm 27.5
76,2 mm 39.5
82,55 mm 46.4