Armoloy® Thin Dense Chromium (TDC)

Armoloy® TDC is a low-temperature, multi-stage metal finishing process improved from chrome-plating technology.

Unlike conventional chrome-plating processes, Armoloy® TDC utilizes proprietary chemical solutions and unique application techniques that are carefully monitored to produce its TDC (thin dense chromium) coating which follows the exact contours of the basis metal with accurate deposit thicknesses.

Value-added benefits of Armoloy TDC® Coating:

• Reduced wear and friction of moving parts
• Enhanced corrosion resistance
• No chipping, cracking or peeling from the basis metal
• Improved release characteristics on plastic molds
• Reduced maintenance and machinery replacement costs
• Smoother, faster and quieter running equipment
• 78 Rc surface hardness
• Vickers Diamond measurements produce a 1020-1100 hardness rating.
• Complies to AMS-2438a and QQ-C-320B, Class 2, Type II

Low Friction Coefficient:
Armoloy® TDC is a low friction coating due to special techniques used in its application. The low coefficient of friction is invaluable especially in situations where extreme temperatures are involved.

Uniform Deposits Without Thickness "Build-up":

Deposit	Tolerances
.000050/.0001"	± .000025"
(1-2,5 microns)	(± 0,05 microns)
.0001/.0003"	± .0001"
(2,5 - 7,5 microns)	(± 2,5 microns)
.0002/.0004"	± .0001"
(5-10 microns)	(± 2,5 microns)
.0004/.0007"	± .000150"
(10-18 microns)	(± 3,75 microns)

Normal proven average deposits are in the .0001/.0003" per side range.

Less Hydrogen Exposure:
Armoloy's unique processing and preprocess surface preparation minimizes a parts exposure to hydrogen. (Original conditions may not, necessarily, be removed.)

Armoloy will not significantly affect the tensile, yield or fatigue properties of the basis metal.

Pre/Post baking available upon request or specification.

Resists Corrosion:
Armoloy® TDC resists attacks by most organic and inorganic compounds with the exception of sulfuric and hydrochloric acids.

Of course, base metal porosity, surface hardness and other imperfections affect basic corrosion-resistant properties.

All basis metals with the Armoloy coating are enhanced.

Conforms to ASTM-B117 and others.

Armoloy® Takes the Heat:
Armoloy® withstands temperatures of -400º to 1600º F.

At elevated temperatures above 1200º F it will react with carbon monoxide, sulfur vapor and phosphorous. At bright red heat, oxidation occurs in steam or alkali hydroxide atmospheres.

Hardness and wear resistance will be reduced, to some degree, at temperatures above 1200º F.

Safety First:
With Armoloy's strength also comes safety.

USDA/FDA compliant for use on food processing equipment and pharmaceutical applications.