EDOGAWA METALS

EDOGAWA METALS (EK Metal) are highly and specialized metals. Interline Technology is a leader trading in EK-Metal with all size either round, rectangular bar, seam, plate and hexagon types.

TYPE : EK-2, EK-3, CZ-5, EKB-50, EKB-25, EKNS-50

 

DATASHEET

Alloy

Mechanical properties
Electrical conductivity
I.A.C.S. % at 20°C
Temperature limit on heat
resistance /°C

Characteristics & Applications

Tensile strength
N / mm2
Elongation

%

Hardness

HRB

EK-2

Drawn bar 450 ~ 550 15 ~ 30 78 ~ 87
78 ~ 88
480 ~ 520
With durability improved by adding special element to copperchromium-zirconium alloy , it excells in electric conductivity and heat resistance; hence,itis in use most widely as resistanse weldind electrode material.
Foreged Products 390 ~ 490 15 ~ 30 72 ~ 82

EK-3

Drawn bar 510 ~ 640 15 ~ 30 85 ~ 92
50 ~ 70
490 ~ 530
Having execellent mechanical strength of copper-chromium-titanium alloy, EK-3 is suited to the electrode materials working under raised we;ding pressure where very high strength and durability are required.
Foreged Products 470 ~ 590 15 ~ 30 82 ~ 90

EK-4

Drawn bar 690 ~ 880 10 ~ 20 95 ~ 102
15 ~ 30
490 ~ 530
Having high mechanical strength as well as excellent wear resistance of copper-titanium alloy, EK-4 is quite suitable for the use of electric conductors where high tensile strength and durability are required.EK-4 will be used as a substite for the high-priced berillium-copper 25 alloy because it can compare with the latter quality.
Foreged Products

CZ-5

Drawn bar 490 ~ 600 15 ~ 25 80 ~ 90
70 ~ 85
500 ~ 550
Having a high copper-chromium-zirconium content, it's high-temperature strength is best suited for seam welding electrode in particular, the surface treated steel plates resistant welding is being usead.
Foreged Products 440 ~ 540 15 ~ 25 75 ~ 88

CZ-7

Drawn bar 500 ~ 650 10 ~ 20 82 ~ 92
70 ~ 80
500 ~ 550
Having a copper-chromium-zirconium alloy, it excels in high-temperature strength and were resistance and is higher in quality than CZ-5. Excels in resistance as high-intensity seam welding electrodes.
Foreged Products 460 ~ 600 10 ~ 20 80 ~ 90

EKB-50

Drawn bar 730 ~ 880 9 ~ 25 93 ~ 105
45 ~ 60
480 ~ 520
Having the most excellent strength,wear resistance and thermal durability of the beryllium-copper 50 alloy made by adding some special elements to copper beryllium base alloy ,EKB-50proves its merits in the applications to flush butt and seam welding electrode or holders of spot welder operating under very severe working environment.
Foreged Products 690 ~ 830 9 ~ 25 93 ~ 105

EKB-55

Drawn bar 750 ~ 900 5 ~ 20 98 ~ 105
48 ~ 60
480 ~ 530
Having special elements added to the beryllium-copper alloy with a fitting heat treatment, it contains high stength,thermal conductivity and durability that excel in the high temperature range.It is higher in quality than EKB-50 and is best for used as electrode material for determined extreme conditions.
Foreged Products 720 ~ 840 5 ~ 20 95 ~ 105

EKB-25

Drawn bar 1,100 ~ 1,500 2 ~ 8 HRC36 ~ 45
20 ~ 30
315 ~ 350
EKB-25 metal becomes to compare with special steels in high strength by means of the pertinently suitable heat treament and it has, besides, the outstanding properties relating to those of specific spring character, electric conductivity, corrosion resistance and wear resistance.
Foreged Products 970 (Min) 2 HRC33 (Min)

EK-NS50

Drawn bar 650 ~ 850 15 ~ 25 90 ~ 105
40 ~ 50
500 ~ 550
With it's copper-nickel-silicon-chromium alloy, and eco-friendly (containi beryllium) attributes,it is best used as electrode material fou extreme conditions.
Foreged Products 600 ~ 800 15 ~ 25 90 ~ 105