Menu Close
Excalibur 7018 MR 14 stick electrode"
The image shown is for representation purposes only and may not reflect the actual product.

Diameters / Packaging

Diameters
 (3) 8 lb Easy Open Can
 (3) 10 lb Easy Open Can
1/8 x 14 in (3.2 x 350 mm) ED033838
3/32 x 14 in (2.4 x 350 mm) ED033940
5/32 x 14 in (4.0 x 350 mm) ED033839

Excalibur® 7018 MR® N

Stick (SMAW)

CLASSIFICATIONS:
AWS E7018

Mild Steel, Low Hydrogen • AWS E7018 H4R

Diameter

Select Diameter

  • 1/8 x 14 in (3.2 x 350 mm)
  • 3/32 x 14 in (2.4 x 350 mm)
  • 5/32 x 14 in (4.0 x 350 mm)

Package

Select Package

  • (3) 8 lb Easy Open Can
  • (3) 10 lb Easy Open Can

DETAILS

Features

  • Q2 Lot® - Certificate showing actual deposit composition and actual mechanical properties available online
  • Available as Batch Managed Inventory
  • “N” Designator - design modified to meet properties after 48 hours stress relief
  • Premium arc performance
  • Square coating burn-off
  • Easy strike and re-strike

Typical Applications

  • Nuclear power plant construction and maintenance
  • Power generation
  • Petrochemical
  • Pressure vessels
  • Pressure piping

Welding Positions

  • All except vertical down

Service Information

BEFORE USE, READ AND UNDERSTAND THE SAFETY DATA SHEET (SDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER. SDS Search page

See test result disclaimer

CONFORMANCE

CONFORMANCES SPECIFICATION CLASSIFICATION
AWS AWS A5.1 E7018-1 H4R
CWB AWS A5.1M E4918-H4R

MECHANICAL PROPERTIES

Classification Yield Strength @ 0.2% Offset
MPa (ksi) 		Tensile Strength
MPa (ksi) 		Elongation
% 		Charpy V-Notch
J (ft-lbs) @ -30°C (-20°F) 		Charpy V-Notch
J (ft-lbs) @ -45°C (-50°F) 		Hardness Rockwell B
E7018-1 H4R Requirement 400 (58) min. 480 (70) min. 22 min. 27 (20) min.
Typical Result, As-welded 440-540 (64-78) 550-630 (79-91) 25-30 134-216 (99-159) 42-178 (31-131) 85-92

DEPOSIT COMPOSITION

Classification %C %Cr %Mn %Mo %Ni %P %S %Si %V %Mn+Ni+Cr+Mo+V Diffusible Hydrogen
mL/100g Weld Metal 		1800F H2O - As received 1800F H2O - After 9 hrs at 80F/80%RH
E7018-1 H4R Requirement 0.15 max. 0.20 max. 1.60 max. 0.30 max. 0.30 max. 0.035 max. 0.035 max. 0.75 max. 0.08 max. 1.75 max. 4 max. 0.3 max. 0.4 max.
Typical Result 0.06-0.09 0.02-0.04 0.96-1.19 0.20-0.26 0.02-0.04 0.008-0.011 0.004-0.008 0.20-0.43 0.01 max. 1.27-1.48 1-2 0.1 0.1-0.3

TYPICAL OPERATING PROCEDURES

Diameter Polarity⁽¹⁾ Current
Amps
3/32 in (2.4 mm) DC+ 70-110
3/32 in (2.4 mm) AC 80-120
1/8 in (3.2 mm) DC+ 90-160
1/8 in (3.2 mm) AC 100-160
5/32 in (4.0 mm) DC+ 130-210
5/32 in (4.0 mm) AC 140-210

NOTES

Note
⁽¹⁾ Preferred polarity is listed first.