Medium & High Tensile Steel Electrodes

SUPERLINK 7018 SPL

Name: SUPERLINK 7018 SPL
Brand: DEPL

AWS/SFA 5.1: E7018-1 H4R EN ISO 2560-A: E 42 5 B 42 H5 (Enhanced toughness variant of E7018)

A special-grade, iron-powder, low-hydrogen electrode with enhanced toughness properties compared to standard E7018. Meets the E7018-1 classification for superior CVN impact values, especially at lower temperatures. Recommended for critical applications where code compliance at −46°C or below is required. Produces X-ray quality welds with excellent mechanical properties.

Enquire on WhatsApp Enquiry form Datasheet — coming soon

Weld metal analysis, %
C	Mn	Si	P	S	Ni
≤0.06%	1.00–1.50%	0.25–0.50%	≤0.020%	≤0.020%	≤0.30%

Mechanical properties
Tensile strength	≥550 MPa
Yield strength	≥470 MPa
Elongation	≥26%
Notes	CVN Impact: ≥80J @ −46°C

Welding procedure & parameters

DC+ (DCEP) preferred; AC also usable. All positions except vertical-down. Re-dry at 300°C/2 hrs. Short arc. Preheat as required by material specification and thickness.

Typical applications

Critical structural welds requiring code-approved low-temperature toughness. Offshore structures, Arctic pipelines, LNG facilities, nuclear components, pressure vessels for cryogenic or low-temperature service.

Storage & handling notes

H4R designation: diffusible hydrogen ≤4 ml/100g. Critical: re-dry at 300°C–350°C for 2 hrs before use. Store in sealed containers or oven at 120°C–150°C after opening.