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Jet-LH 78 MR E7018

Diámetros / Embalaje

Diámetros
mm 		(4) 5 lb Tube
1/8 x 14 in (3.2 x 350 mm) ED033518
3/32 x 14 in (2.4 x 350 mm) ED033517
5/32 x 14 in (4.0 x 350 mm) ED033519

Jet-LH® 78 MR®

Soldadura de Arco Metálico Protegido (SMAW) | ED033517

CLASIFICACIONES:
E7018 H4R

Jet-LH® 78 MR® desempeño de arco suave

Diámetro

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  • 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)

Paquete

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  • (4) 5 lb Tube

Detalles

Mild steel and low hydrogen electrode designed to meet the H4R designation from AWS A5 - Retail Small Packaging (RSP). All RSP products carry AWS compliance. Unlike the standard products, RSP products have no other agencies approvals.

Características

  • Smooth arc performance
  • Legacy product specified in many old PQR
  • Legacy product mainly used in shipbuilding

Servicio de información

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CONFORMANCE

CONFORMANCES SPECIFICATION CLASSIFICATION
AWS AWS A5.1 E7018 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)
E7018 H4R Requirement 400 (58) min. 480 (70) min. 22 min. 27 (20) min.
Typical Result, As-welded 430-470 (62-68) 520-570 (75-83) 27-30 130-313 (96-231)

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 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 0.05 0.03-0.06 0.89-1.19 0.01 0.02-0.04 0.011-0.013 0.007-0.011 0.20-0.30 0.01 0.96-1.31 2 0.1 0.2-0.3

TYPICAL OPERATING PROCEDURES

Diameter Polarity⁽¹⁾ Current
Amps
3/32" (2.4 mm) DC+ 65-100
3/32" (2.4 mm) AC 70-105
1/8" (3.2 mm) DC+ 110-160
1/8" (3.2 mm) AC 120-170
5/32" (4.0 mm) DC+ 130-200
5/32" (4.0 mm) AC 140-230

NOTES

Note
⁽¹⁾ Preferred polarity is listed first.