Red Dog T153X

GENERAL DESCRIPTION

The T153X overlay alloy for steel plate has been developed for applications requiring resistance to moderate to low stress abrasion and erosion, combined with moderate to high impact.

Please Note: Only produced as a double layer deposit.

TYPICAL PROPERTIES OF UNDILUTED T153X ALLOY

The properties given directly below refer only to the T153X alloy, undiluted by base material (substrate).  These properties differ from the properties of actual overlay deposits on a particular substrate, examples of which are given in the next section.

Type of alloy	Iron based
Group of alloys	Medium chromium iron
Nominal composition (undiluted)	3% C, 15% Cr, 2% Mo
Microstructure	Hyper-eutectic martensitic
Typical hardness range	50-55 Rc
Cracking	Yes
Abrasion resistance	Moderate
Impact resistance	Moderate to High
Typical service temperature	Up to 650°C (1,200°F)
Machining	Only grinding
Flame cutting	No

TYPICAL PROPERTIES OF T153X OVERLAID PLATES

Standard Base Plate Grades:

in the USA:	ASTM A-36
in the UK	BSEN 10025:1993 Fe 430A (BS 4260-43A)

Typical chemical composition and hardness of  double layer overlay:

	Element	C	Mn	Si	Cr	B	Fe	Hrc
Double layer	Wt%	2.8	14	1.8	28	0.6	Remainder	50-55

AREAS OF INDUSTRIAL USE

T153X overlaid plates are used in many segments of industry requiring a combination of moderate resistance to abrasion and high impact resistance.

TYPICAL FIELDS OF APPLICATION

• Gyratory Crusher Mantles

• Crushers Hammers

• Crusher Rolls

• Conveyor Screws

• Expeller Screws

• Chutes

MACHINING, CUTTING, WELDING AND REPAIR OF T153X PLATES

Edges ad surfaces may be ground with an abrasive disk.

The high chromium content of the alloy is incompatible with the use of oxy-fuel flame cutting processes.

Plasma-arc is the generally preferred method of cutting.  The quality of plasma cutting is excellent, in terms both of precision and cleanliness.

Localized removal of the overlay material is possible using the Carbon-Arc/Air process.

The T153X plates can be welded to themselves or to any weldable substrate structural material using mild steel low hydrogen welding consumables.

Structural welding must be carried out on the mild steel side of the plate.

Local repairs, or reconstruction of the overlay at the location of welded joints can be carried out using matching manual electrodes or corresponding tubular wires.

For more details, please consult Red Dog's Fabrication Guide.

FURTHER SERVICES AVAILABLE FROM KUBES ALLOYS

Kubes Alloys' access to Red Dog's proprietary technology, technical knowledge and 50 years of experience as a leader in the field, provides the basis from which to select base plate qualities and overlay alloy properties to suit specific, non-standard requirements.  This service is available from Kubes Alloys' Technical Department, which will be pleased to assist.

TECHNICAL SUPPORT

Technical support and advice on all aspects of the selection and fabrication of Red Dog overlay plates may be obtained by contacting Kubes Alloys directly.