HARD ARC 43
JIS Z3251 DFCrA-700B
DIN8555 E10-UM-65-GR
EN 14700 E Fe 15
CHARACTERISTICS
•Tough, Wear Resistant Complex Carbide Type Deposit
•For Hard Surfacing Components Subjected to Extreme Abrasion and Moderate to Heavy Impact
DESCRIPTION AND APPLICATIONS
HARD ARC 43 is a heavy coated, hard surfacing electrode depositing extremely hard, abrasion resistant Cr/Nb carbides in an austenitic matrix. It is ideal for hard surfacing applications where resistance to extreme abrasion (in particular sliding abrasion) and moderate to heavy impact are required. Due to the nodular shape of the complex carbides, HARD ARC 43 deposits are capable of withstanding heavier impact levels than standard chromium carbide grades. Typical applications include bucket teeth/lips, grizzlies, press screws, crusher hammers and ripper teeth to name a few.
DEPOSIT PROPERTIES
HARD ARC 43 deposits are non-machinable, grindable, prone to fine relief checking and should be restricted to 3 layers high. While two layers of HARD ARC 43 may be required for maximum wear resistance, this complex carbide alloy has lower dilution sensitivity than straight chromium carbide deposits.
Notes on usage
(1) Preheat at 150℃ and over in general.
(2) It is desirable to postheat at about 600℃ .
(3) In case of multi-layer build-up welding or welding mother plates with hardening property, under-lay with low hydrogen type electrodes for mild steel.
(4) Dry the electrodes at 300~350℃ for 120 minutes before use.
Welding Position:
Typical Chemical Compositon(Wt%):
Typical hardness of weld metal
SINGLE-LAYER ONTO MILD STEEL | 60-65 HRC |
MULTI-LAYER | 62- 69 HRC |
• Single layer deposit hardness may vary depending on base metal type and degree of dilution.
Size & recommended current range
Dia.(mm) | 3.2 | 4.0 | 5.0 |
L(mm) | 350 | 400 | 400 |
Amp. | F | 100~ 150 | 140~ 200 | 170~250 |
• Recommended for DC + or AC (minimum 45 OCV) operation
