N-7018-A1

Specification

Description

• N-7018-A1 is an iron powder low hydrogen type electrode for all-position welding containing 0.5% Mo in weld metal deposit

Application

• Welding of 0.5% Mo steel used for high temperature
• high pressure boiler
• Pressure piping and tubing
• Pressure vessels
• Chemical and oil refining industries

Remarks

Dry the electrodes at 325-375°C for about one hour before use

Pre-heat at 250-350°C and post-heat at 730-760°C

Technical Data

TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

C	Si	Mn	P	S	Mo
0.08	0.54	0.78	0.015	0.010	0.56

 

TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL DEPOSITS:

Yield Point N/mm2 (KSI)	Tensile Strength N/mm2 (KSI)	Elongation %	PWHT
590 (86)	680 (99)	28	620 ºC x 2 hrs.

 

SIZE AND RECOMMENDED CURRENT RANGE: AC, DC (+)

DIAMETER (mm)		2.6	3.2	4.0	5.0	6.0
LENGTH (mm)		350	350	400	400	450
Current Amp	Flat	50 - 90	80 - 130	130 - 190	180 - 240	230 - 300
	Vertical & Overhead	40 - 80	70 - 120	110 - 170	150 - 200	-

Welding Positions:	ALL POSITIONS
Approvals:	N/A

NOTE:

The information contained or otherwise referenced herein is presented only as “typical” without guarantee or warranty, and Industrial Welding Corporation expressly disclaims any liability incurred from any reliance thereon. Typical data and test results for mechanical properties, deposit, or electrode composition and other properties were obtained from a weld produced and tested according to prescribed standards and should not be assumed to be the expected results in a particular application or weldment. Actual results will vary depending on many factors, including, but not limited to, weld procedure, plate chemistry and temperature, weldment design, and fabrication methods. Users are cautioned to confirm by qualification testing, or other appropriate means, the suitability of any welding consumable and procedure before use in the intended application.