TRIBALOY® T-800®

TRIBALOY® T-800®

Tribaloy® T-800® is a cobalt-chromium-molybdenum alloy which inhibits galling between sliding surfaces where lubrication is difficult. The microstructure of Tribaloy® T-800 consists of about 50% of the hard intermetallic Laves phase dispersed in a softer cobalt alloy matrix. This provides the material with exceptional metal to metal wear bearing properties. The high levels of molybdenum and chromium present favors the formation of the high hardness Laves phase and also provides a high level of corrosion resistance. The Laves phase itself has a 2840°F melting point, which helps Tribaloy T-800 retain its wear resistance to high temperatures. Deposit hardness is in the range of Rc 54-62. Wire diameters 0.035", 0.045" and 0.062" are available as straight cut lengths 17" standard. Shapes are available per customer requirements.

Chemistry

 CrNi+FeMoCoCNOSiPS
MIN 16.50 -- 27.00 -- -- -- -- 3.00 -- --
MAX 18.50 3.00 30.00 Balance 0.08 0.07 0.05 3.80 0.03 0.03

Specifications

GE B50TF193S6
HARDFACING MATERIALS SNECMA B50TF193
HARDFACING MATERIALS SNECMA DMR 34.071

Inventory

TRIBALOY® T-800® Welding Products

Common Trade Names

Tribaloy®

Features

  • Low coefficient of friction

Applications

  • Hardfacing of notches in jet engine turbine blades

Physical Properties

Density: 0.312 lb/in3
Thermal Expansion: 6.8 in/in°F x 106

Ultimate Compressive Strength, ksi 258
Modulus of Elasticity Dynamic, psi x 10-6 352
Fracture Toughness ksi √in 17

Hot Hardness

Temperature, °F ksi 800 1000 1200 1400
Hot Hardness, DPH 17 308 659 622

TRIBALOY® and T-800® are registered trademarks of Deloro Stellite Holdings Corporation, a Kennametal Company.