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Hardfacing Electrodes

SUPERLINK-350

AWS A5.13: EFe2–EFe3 (equivalent) Martensitic iron-base hardfacing

A martensitic hardfacing electrode providing moderate-to-high abrasion resistance combined with good impact toughness. Deposits are non-machinable (carbide-tipped tools required). Hardness approximately 40–50 HRC. Suitable for metal-to-metal wear and moderate abrasive conditions. Heat-treatable deposit.

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Technical specifications

Weld metal analysis, %
C Mn Si Cr Mo Fe
0.25–0.50%0.80–1.50%0.50–1.0%3.0–6.0%0.30–0.80%balance
Mechanical properties
Hardness 40–50 HRC (as deposited, 2 layers on mild steel)
Notes Non-machinable — requires carbide-tipped tools

Welding procedure & parameters

DC+ (DCEP) or AC. Flat and horizontal positions recommended; positional with care. Preheat 200°C–300°C for medium/high carbon base metals. 2–3 layers maximum. Peening of each layer recommended.

Typical applications

Crusher jaws and mantles, bucket teeth, scraper blades, plough shares, mining equipment, dredger teeth, conveyor screws, hammer mill components subject to combined abrasive and impact wear.

Storage & handling notes

Re-dry 250°C–300°C/1 hr. Preheat essential for higher-carbon base metals. Deposit may check-crack on cooling — this is normal for this hardness range.

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EFe1-2 (equivalent)

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SUPERLINK-500

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A high-chromium carbide hardfacing electrode for extreme abrasion resistance.

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SUPERLINK-650

EFeCr-A (equivalent)

An extremely hard, complex chromium carbide hardfacing electrode producing non-machinable, sound weld metal.

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