NM-630

Specification
AWS Specification: AWS A5.9 ER 630
JIS Specification: N/A
Other Specification: N/A
Description
  • NM-630 is a precipitation hardening stainless steel covered electrode used for welding materials of similar chemical composition such as 17-4 and 17-7 plates
  • Prevents the formation of ferrite networks in the martensitic microstructure which has a great effect on mechanical properties
TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL DEPOSITS (%):

C

Si

Mn

Cr

Ni

Cu Cb & Ta

0.04

0.51

0.63

16.48

4.52

3.53 0.31

 

TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL DEPOSITS:
Yield Point
N/mm2 (KSI)
 
Tensile Strength
N/mm2 (KSI)
 
Elongation
%
 
Hardness (As Welded)
 

1,060 (154)

1,150 (167)

9

34 - 48

 

SIZE AND RECOMMENDED CURRENT RANGE: DC (+)

DIAMETER (mm)

Amps

0.8 60 - 180
0.9 70 - 200
1.0 70 - 200
1.2 90 - 250
1.6 200 - 300

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.

  • Designed primarily for welding ASTM A564 Type 630
  • Hydraulic equipment
  • Pump shafts

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Industrial Welding Corporation (IWC) was established in 1982 by Mr. H. Ong Hai who had 25 years of welding industry experience (at that time). Since then, IWC has consistently and successfully earned an excellent ...
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