General Description

NW 235T is a Fe-Cr-Al alloy used in arc and flame spraying systems. They can produce dense, well-bonded coatings with excellent wear and high temperature oxidation resistance.

Equivalent to:

TAFA Alcro

Typical Applications

  • Applications where good corrosion and oxidation Resistance is required
  • Applications for wear resistance such as erosion and abrasion
  • Machine element repair and restoration
  • Resistance to chloride-ion attack in marine environments
  • As a replacement for hard chrome plating
  • Bond coats in high-temperature coating systems,
  • Protective coatings against sulphur-containing atmospheres
  • Protective coatings against scaling of conventional low alloy steels.

Chemical Composition

Grade C% P% S% Mn% Si% Cr% Al% Fe%
NW 235T Max 0.05 Max 0.025 Max 0.025 Max 0.5 Max 0.5 20.5-23.5 4.2-5.3 Bal.

Physical Properties

Density: 7.25 g/cm3

Melting Point: 1500 °C

Specific Resistance (at 20°C) (µΩ-m):  1.35

Typical Deposit Characteristics

Typical Hardness: 85-90 HRB

Bond Strength: 6300 psi

Deposit Rate: 10 lbs /hr/100A

Deposit Efficiency: 70%

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