EH 250

Standards

AWS/ASME SFA - 5.13 ~EFeMnCr
EN 14700 E Z Fe9
TS EN 14700 E Z Fe9
DIN 8555 E 7-UM-250-KPR

Properties and Applications

High recovery (140%), austenitic manganese steel electrode for joining and hardfacing of high manganese steels which are subjected to very high pressure, shocks and abrasion. It is suitable to use as a buffer layer prior to hardfacing. Due to it is 12% Cr content, weld metal has high crack resistance and abrasion resistance with respect to other manganese steel electrodes. Weld metal work hardens by cold-working. Workpiece shall not become too hot during welding and when necessary, it shall be cool down before next hardfacing passes. High welding currents and wide-weave beads must be avoided. When welding large workpieces made of austenitic manganese steels, it is advisable to weld them in a water bath. Suitable for hardfacing and repair welding of dredge pumps, hydraulic press pistons, crane wheels, rail crossings, crusher parts subjected to impact of soft minerals.
Eh 250 Sert Dolgu

Dayanım Gösterdiği Aşınma Tipleri ve Mikroyapısı


Abrasion

Adhesion

Darbe

Temperature

Corrosion

Typical Applications

Eh 250 Model Tipik Uygulamalar Eh 250 Model Tipik Uygulamalar Eh 250 Model Tipik Uygulamalar Eh 250 Model Tipik Uygulamalar

Typical Chemical Values of Weld Metal

Type of AnalysisCSiMnCr
Weld Deposit0,500.7016.0012.00

Typical Mechanical Values of Weld Metal(%)

Test ConditionHardness (HB)Wear Index
As welded23071.75
After Cold Working450 

Application Information

Welding Positions :
Eh 250 Kaynak Pozisyonu Eh 250 Kaynak Pozisyonu Eh 250 Kaynak Pozisyonu

Polarity:

Eh 250 Kutuplama

Welding Parameters & Efficiency :

Diameter x Length (mm)Current (A)
3.25x350100-140
4.00x450150-200

Packaging Information

Product CodeDiameter x Length (mm)Quantity per BoxBox Gross Weight (kg)Boxes per Outer BoxOuter Box Gross Weight (kg)Packaging Type
18001NREM23.25x350139 pcs5.07315.40Cardboard Box
18001SSEM24.00x45076 pcs6.58319.90Cardboard Box

Storage & Re-Drying Information

>It can be dried maximum 5 times.
>It has to be dried at 350°C for 2 hours.