The Complete Guide to Hardfacing Flux Cored Wire

Refined Definition: What Is Hardfacing Flux Cored Wire?

Hardfacing flux-cored welding wire is a functional welding wire designed specifically for surface enhancement.

Unlike carbon steel or low-alloy flux-cored wires used for structural welding, the core purpose of hardfacing wire is singular:

To provide metal surfaces with high wear resistance, impact resistance, or high-temperature resistance, thereby extending equipment service life.

It consists of a metal sheath filled with alloying powder formulated for specific performance. During welding, it deposits a high-hardness, highly wear-resistant overlay layer onto the substrate.

The flux-cored powder formulation can be adjusted according to customer requirements by varying the proportions of C, Cr, Nb, Mo, and W.

Why Choose Wodon Hardfacing Wires

Quality Control

✓ No joints
✓ Smooth feeding with no arc interruption
✓ Stable arc performance with uniform wire diameter

High Deposition Efficiency

✓ Low spatter and reduced fumes
✓ No peeling or cracking after welding
✓ Deposition efficiency >90%

Wide Product Range

✓ Independently developed and upgraded formulations
✓ Extensive alloy options
✓ Covers diverse wear-resistance requirements

Models, Specifications, and Application Fields of Hardfacing Wires

Wear Plate Flux Core Welding Wire
Model	Spec.(mm)	HRC	Main Ingredient	Applications
HD161	2.8、3.2	58~65	C、Cr、Mn、Si	For hardfacing single layer wear plate
HD161+	2.8、3.2	58~65	C、Cr、Mn、Si	For hardfacing single layer wear plate
HD181	2.8、3.2	58~65	C、Cr、Mn、Si	For hardfacing ultrathin wear plate
HD30	2.8、3.2	55~63	C、Cr、Mn、Si	For hardfacing multiple wear plate

Gas Shielding Flux Core Welding Wire
Model	Spec.(mm)	HRC	Main Ingredient	Applications
D114	1.6	50~55	C、Cr、Mn	For hardfacing hammer head,hammer plate and other high impact parts
D172	1.2、1.6	≥40	C、Cr、Mo	For hardfacing bucket gear,mining machinery and others
D212	1.2、1.6	≥45	C、Cr、Mo	For hardfacing the surface of wear parts, such as gear,digger,mining machinery etc
D256	1.6	HB≥170	C、Mn	For hardfacing high manganese rail,bulldozer and other wear parts under impact
D313	1.6	45~50	C、Cr	For hardfacing continuous casting roller
D322	1.6	55~63	C、W、Mo	For repairing die and toughening tool and mechanical parts with high wear performance
D405	1.6	53~60	C、Cr、Mo、W、V	For hardfacing hot rolling roll
D430	1.6	35~40	C、Cr	For hardfacing general corrosion resistant parts
D502Mo	1.6	35~45	C、Cr、Mo	For hardfacing valve
D518	1.6	40~50	C、Cr、Mo、Ni	For hardfacing continuous casting roller
D688	1.2、1.6	50~58	C、Cr	For hardfacing heavy wear parts
D788	1.2、1.6	50~60	C、Cr	For hardfacing heavy wear parts
D788A	1.2、1.6	50~60	C、Cr	For hardfacing heavy wear part,single layer welding only
D888	1.2、1.6	58~65	C、Cr	For hardfacing heavy wear parts
D995	1.6	58~65	C、Cr、Nb、W、V	For hardfacing heat resistant wear parts
D688 Welding rod	4	50~62	C、Cr	For welding by severe abrasive wear parts

Steel Mill Roller Flux Core Welding Wire
Model	Spec.(mm)	HRC	Main Ingredient	Applications
D430	2.4、3.2	35~45	C、Cr	For hardfacing common corrosive component
320H	3.2、4.0	~	C、Cr	For hardfacing continuous casting roller
224	3.2、4.0	45~55	C、Cr、Mo、W	For hardfacing hot rolled billet roller
224B	3.2、4.0	50~60	C、Cr、Mo、W	For hardfacing hot rolled billet roller
414N	3.2、4.0	40~50	C、Cr、Mo	For hardfacing continuous casting roller
414-O	3.2、4.0	40~50	C、Cr、Mo	For hardfacing continuous casting roller

Vertical Cement Mill Flux Core Welding Wire
Model	Spec.(mm)	HRC	Main Ingredient	Applications
HB100	2.8、3.2	58~63	C、Cr、Mo	For repairing Coal grinding mill,Grinding disc,Cement vertical mill
HB100L+	2.8、3.2	58~63	C、Cr、Mo
HB100+	2.8、3.2	58~63	C、Cr、Mo
HB350	2.8、3.2	55~63	C、Cr、Mo、Nb
HB650	2.8、3.2	58~63	C、Cr、Mo、Nb

Cement Squeeze Roller Flux Core Welding Wire
Model	Spec.(mm)	HRC	Main Ingredient	Applications
D01	2.8	~	C、Cr、Mo	For base layer
D100Mo	2.8	55~63	C、Cr、Mo	For buffer layer
D650	2.8	55~63	C、Cr、Mo	For pattern layer

Ever Wondered How Hardfacing Wire Is Made?

Technical Support

Working Condition Assessment

Evaluate wear mechanisms such as impact, abrasion, and high-temperature wear, and identify potential failure modes of your equipment.

Material & Hardfacing Solution Design

Customize flux-cored wire formulations based on your operating conditions and wear types to achieve targeted wear-resistant performance.

Welding Process Parameter Recommendation

FAQ

Why can’t hardfacing flux-cored wire be used for structural welding?

Hardfacing flux-cored wires cannot be used for structural welding because they are designed for completely different purposes:

Hardfacing wires → surface engineering (wear resistance)

Structural wires → load-bearing joints (strength + toughness)

The metallurgical systems are fundamentally different.

Hardfacing wires contain high carbon and high alloy elements. During cooling, they naturally produce stress relief cracks, which are normal in hardfacing layers.

However, in structural welding:
❌ Any crack is unacceptable.

How to Select Hardfacing Flux-Cored Welding Wire?

Choose the welding wire based on the actual working conditions, including the levels of wear, impact, and compression on the component.

For abrasive wear, use high-chromium cast-iron flux-cored welding wire.

For metal wear parts, select medium- and low-alloy tool-steel hardfacing wires.

For heavy compression conditions, manganese-steel cold-work-hardening flux-cored welding wire is a suitable option.

What is the relationship among carbon steel flux cored wire, low-alloy flux cored wire, and hardfacing flux cored wire?

These three types all belong to the same major category: flux-cored wires.

The difference lies in their intended application:

Carbon steel & low-alloy flux cored wires → structural welding

Hardfacing flux cored wires → wear, impact, and high-temperature surfacing/repair

In other words:

The first two are used for joining structural components

Hardfacing wires are used for surface protection, surfacing, and wear resistance

How to Choose the Right Wire?

To recommend the appropriate hardfacing flux cored wire, please provide the following information:

• Wire diameter (1.2mm / 1.6mm / 2.4mm / 2.8mm / 3.2mm / 4.0mm)
• Working conditions / wear type (impact wear, high-temperature wear, wear plate overlaying, other conditions)
• Preferred alloy system or required hardness.

Contact Our Engineers

Flux Cored Welding Consumables for Hardfacing Applications