WEAR PIPE

TWP70

TWP70 is at the top of Trimay’s® product list. TWP70 is a nickel-based steel overlay wear solution with a unique proprietary alloy composition designed to withstand heavy impact and severe wear environments.

Macrocrystal- line tungsten has a higher melting point than that of the molten welding puddle, therefore the matrix is not affected by the degradation of Tungsten carbides throughout the matrix.

The result is a stable matrix which is not brittle and can absorb impact without cracking.

KEY PERFORMANCE

CHARACTERISTICS

Overlay Attributes

TWP70 consistently rates between 46 – 50 HRc for hardness, and only loses 0.05 g (+/-0.03) on ASTM G65-04 Procedure A mass loss test.

TWP70’s Nickel Chrome Iron Matrix (NCIM), with Macrocrystalline Tungsten Carbide (MTC) and other elements added, forms this nickel-based alloy. Furthermore, because MTC carbides do not degrade throughout the overlay application process, the finished overlay keeps ductility and is able to absorb impact rather than fracture.

Common Application

As a wear pipe solution, TWP70 can be applied on most types of pipe steel and casing.

Application Process

Open Arc Welding

Rockwell C (HRc) Hardness

HRc 46 – 50

Overlay Thickness

Standard (single pass): 5/16” or 8 mm

Wear Resistance

ASTASTM G65-04 Procedure A 6,000 cycles mass loss 0.05g (+/- 0.03)