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Welcome to ChangZhou Futong Welding CO.,LTD.

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futong plant

Product Features


Revolutionary "FUTONG” is manufactured using advanced fusion bond welding technology to

apply a highly abrasive resistant chromium carbide on to a steel substrate producing

consistent chemistry and micro structure with smooth overlay deposit.


The formation of the high chromium carbide micro structure leads to a perfect abrasion

resistant bi-metallic plate.


High chromium carbide with high abrasion resistance and moderate to high impact properties.

SMOOTH SURFACE  Chromium Carbide Overlay Plate

Reducing hang up / Carry back mobile

equipment an fixed plant

Hang up / Carry Back are the terms used to describe material sticking or binding to

a surface.


Buildup is costly as it reduces production efficiency, can cause millions of dollars in

lost productivity and decreases availability of plant and machinery.


Most material with either a high content of clay or water will have some type of hang

up carry back problem so FUTONG plates try to approach every hang up / carry back

application uniquely.

Fixed plant hang up

Mining truck carry back

Advantages Of FUTONG

Manufacturing Process


Surface treatment before hardfacing

Shot blasting

Clean base metal surface to enhance fusion process

Base plate pre-heat

Pre-heat to set temperature

Pre-heat to reduce residual stress

Temperature held after weld

Holding temperature for slow cooling process

Pre-heat to reduce residual stress

Cooling during welding

Slow Cool

Enhances mechanical strength of the base plate

Finished plate flatness


± 2.5mm per 1.5 linear metres

Surface finish


Designing for directional flow of material not necessary

Friction co-efficient


Excellent for reducing or eliminating hang up or carry back

Visible surface weld bead

No visible bead

Smooth surface without weld beads

Single pass overlay depth

3 to 12mm

Uniform microstructure and hardness

Fusion dilution depth

0.4 - 0.75 mm

Low overlay dilution with backing plate. Wear rates become consistent and predictable

Microstructure & Hardness consistency

Uniform down to fusion line

Consistent and predicable wear rates

Operating temperature


Excellent high temperature wear rates

FUTONG Smooth Overlay Plate

Smooth surface finish

Low friction co-efficient resulting in reduced hang up/carry back

No weld beads

Maximum wear resistance as directional flow of product over hardface overlay is not required

Low dilution with a uniform fusion line between hardface overlay and backing plate

Consistent hardness and microstructure resulting in consistent and predictable wear rates

Minimal Surface Relief Cracks on Hardface Overlay

Low residual stress between hardface overlay and backing plate resulting in ease for rolling and fabrication

Bulk Weld Overlay plate

Rough surface finish

Product can built up on uneven surface

Weld beads

Directional flow of product over hardface weld bead critical to minimise wear rates

High dilution and uneven fusion line between hardface overlay and backing plate

High dilution results in accelerated wear rates as hardface overlay thickness starts to reduce

Multiple surface relief cracks on hardface overlay

High residual stress between hardface overlay and backing plate resulting in poor rolling and fabrication

FUTONG Smooth Surface Overlay Plate VS Bulk Welded Overlay Plate

The materials microstructure and not its hardness determines abrasive resistance wear characteristics.

FUTONG has a dual metallurgical structure consisting of very hard carbides embedded in a soft matrix.

Quenched & Tempered steels have a predominately single metallurgical structure

Abrasion resistance is not related to hardness as hardness values only become relevant when comparisons are

made within a family of steels.

Chemical composition, microstructure & bulk hardness influence abrasion resistance

Abrasion resistance is not apparent in a hardness test but in a actual wear test such as ASTM G65.

Overlay plate are suitable for extremely severe abrasive wear and low to moderate impact. The structure of

overlay is a high proportion (up to 30% to 40%) of hard primary M7C3 chromium carbides in a eutectic matrix.

Reduction of Carry Back / Hang Up


FUTONG's unique manufacturing process offers a smooth overlay surface ensuring a low friction coefficient and combined with excellent abrasion resistant properties

greatly reduces or eliminates hang up / carry back.

Our specialized design team ensures a unique and specific anti hang up / carry back solution to each and every situation.





Dia of wheel

Sand size

Loss weight


9 on 10


3000r, 6000r






Abrasion Resistance & Testing

Low stress or scratching abrasion is the most predominant wear characteristic within the mining and associated industries with the wearing steel being abraded

away by removing slivers of steel.

The length of the metal sliver removed varies based upon the micro-structure and bulk hardness of the material being abraded.


One of the more common tests to evaluate abrasive wear resistance in a variety of steel is the ASTM G65

sliding abrasion test.

This test measures the weight or volume loss in a very controlled environment and is commonly referred to

as low stress or scratching abrasion. The dry-sand, rubber-wheel apparatus (DSRW) produces data that will

rank products in their resistance to scratching abrasion under a set of conditions.

The value of this testing lies in predicting the ranking of materials in a relative order of merit as would

occur in an abrasive environment.

The ASTM G65 test gives a valuable insight into field performance.

Sliding Abrasion Results FT-M vs HB500




Weight loss(g)















Turbulence and Wear

Wear is caused by a product flowing over a stationary surface.

An uneven material surface causes micro-turbulence of the product and can accelerate the wear rate of the material.

The weld beads on bulk weld overlay late generates turbulence that can lead to premature and costly failure of the wear liner. With no weld bends, FUTONG allows a

laminar flow of the product thereby greatly reducing wear rates.