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HH-700B

Name: HH-700B
Brand: Fehong Wear Resistant Technology Co., Ltd
SKU: fcw-wire-for-cco-wear-plate0001

Model Number: HH-700B
Hardness: ≥ 60 HRC
Chemical Composition (C): 4.8 - 5.5%
Chemical Composition (Cr): 23 - 28%
Chemical Composition (Si): 0.7 - 1.5%
Chemical Composition (Mn): 0.6 - 1.0%
Wire Diameter: 2.8 mm
Welding Current: 360 - 450 A
Welding Voltage: 29 - 33 V
Max Operating Temperature: ≤ 450°C
Max Deposit Thickness: Up to 30 mm (multi-layer)
Packaging: 250 kg/barrel; 125 kg/barrel

More Details

Product Description

HH-700B is a high chromium carbide hardfacing flux-cored welding wire (FCW), specially developed for the production of CCO wear plates (chromium carbide overlay wear plates) and wear-resistant pipes. The deposited metal contains primary chromium carbides, which provides excellent resistance to abrasive wear and delivers long service life in severe wear conditions.

Key Properties

Anti Abrasion

Anti Impact

Heat Resistant

Anti Corrosion

Product Features

Feature	Description
Wear Resistance	Deposited metal contains primary chromium carbides, highly resistant to abrasive wear.
Microstructure	High chromium high carbon hard alloy on iron base: C - Cr - Fe.
Machinability	Grinding only.
Cutting	Not suitable for flame cutting.
Max Deposit Thickness	Up to 30 mm by multi-layer surfacing.
Working Temperature	Should not exceed 450°C.
Welding Performance	Low spatter, smooth and neat weld bead, high welding efficiency and high deposit metal recovery rate.

Typical Chemical Composition (After 3-layer Welding)

Element	Composition (%)
C	4.8 - 5.5
Cr	23 - 28
Si	0.7 - 1.5
Mn	0.6 - 1.0
Others (Ni, V, Ti, Mo, B)	Appropriate amount

Recommended Welding Parameters

Wire Diameter (mm)	Current (A)	Voltage (V)	Stick-out (mm)
2.8	360 - 450	29 - 33	25 - 40

Applications

Mainly used for the production of CCO wear plates (chromium carbide overlay wear plates).
Also used for the production of wear-resistant pipes.
Suitable for hardfacing repair of chutes, sieves, conveying channels, liners, hoppers and other wear parts.