EM 251

Datasheet

Properties and Applications

Basic type electrode for welding and building of Cr-Ni-Mo- V containing steels and cast steels with similar composition. Suitable to use in machine building and construction of apparatus, as well as for repair welding of components made of similar steels grades. Preheating, interpass temperature and post-weld heat treatment should be done in accordance with base metal to be welded.

Typical Chemical Values of Weld Metal

Type of Analysis	C	Si	Mn	Cr	Ni	Mo	V	Cu
Weld Deposit	0.09	0.75	0.60	1.30	0.04	0.90	0,50	0.10

Type of Analysis

Weld Deposit

0.09

0.75

0.60

1.30

0.04

0.90

0,50

0.10

Typical Mechanical Values of Weld Metal(%)

Test Condition	Yield Strength (N/mm²)	Tensile Strength (N/mm²)	Elongation A5 (%)
As welded	700	850	15

Test Condition

Yield Strength (N/mm²)

Tensile Strength (N/mm²)

Elongation A5 (%)

As welded

700

850

Application Information

Welding Positions :

Polarity:

DC(+)

Welding Parameters & Efficiency :

Diameter x Length (mm)	Current (A)	Weld Deposit(Kg)/1Kg Consumed Electrode	Number of Electrodes/1Kg Weld Deposit	Weld Metal Deposition Rate (Kg/h)	Efficiency(%)
2.50x350	60-90	0,73	57	1,24	132
3.25x350	90-130	0,73	40	1,84	132
4.00x450	140-180	0,72	29	2,21	132
5.00x450	190-230	0,71	19	2,3	132

Packaging Information

Product Code	Diameter X Length (mm)	Pieces per Box (~)	Weight Of The Box (kg)	Boxes Per Package	Weight Of The Package	Packaging Type
12025HREM2	2.50x350	238	5.0	3	15.4	Cardboard Box
12025NREM2	3.25x350	147	5.0	3	15.4	Cardboard Box
12025SSEM2	4.00x450	97	6.5	3	19.9	Cardboard Box
12025VSEM2	5.00x450	64	6.5	3	19.9	Cardboard Box

Storage & Re-Drying Information

>It can be dried maximum 5 times.

>It has to be dried at 350°C for 2 hours.