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 lowtemperature 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.

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

APPLICATIONS

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

Mechanical Properties: BAR

YIELD STRENGTH
RP0.2
MPA
TENSILE STRENGTH
RM
MPA
ELONGATION
[%]
HARDNESS
[HB]
IMPACT
CHARPY-V, -40ºC
[J]
 ≥ 620  ≥ 900  ≥ 17  ≤ 250

Heat Treatment

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

Weldability

Very good.

ALLOY K500 / UNS N05500 ROUND BAR

DESCRIPTION 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