Maharsh Metal Heat Treatment

Xylan coating is the largest, most complete line of fluoropolymer coatings in the worlds. Xylan coatings in which we also cover, TEFLON, PTFE coating have a broad range of properties, which make them ideal for an infinite variety of applications. Xylan/PTFE coating on Bolts, Studs & Nuts is an ideal protestion in corrosive environments, salt water condition & specially for splash zone. Xylan coatings differ from traditional fluoropolymer coatings in one very important aspect : they are composite materials. Lubricants with the lowest-known coefficient of friction are combined with the newest high-temperature-resistant organic polymers. Together, they from “Plastic alloys” with unique properties:Xylan Coatings are a family of fluoropolymer coatings designed for use on various types of OEM components and fasteners, including Xylan coated bolts to prevent corrosion. Xylan is known a heteropolymeric substrate consisting of a repeating β-1,4-linked xylose backbone branched with acetyl, arabinofuranosyl, and 4-O-methyl glucuronyl groups (Figure 1). In addition, xylan may be cross linked to lignin by aromatic esters. In order to efficiently depolymerize xylan to the component monosaccharides, a mixture of different enzymatic functionalities are required, including endo-1, 4-β-xylanases.

Properties of Xylan Coating :

Tensile Strength (ASTM D1708) : 4000 - 5000 psi
Elongation (ASTM D1457) : 50.00%

Impact Strength (ASTM D256) : 13 ft - lb/in
Hardness (ASTM D2240) : 60 - 90 HB (shore D)

Abrasion Resistance (Tabor) : > 15 mg
Coefficient of Friction (ASTM D1894) : .15 - .35 static

Dielectric Strength (ASTM D149) : 1400 volts per mil
Use Temperature : -100°F to 500°xF max

Melting Point : n/a

Additional Information:

• Item Code: 8457
• Production Capacity: 3 TON
• Delivery Time: 6 DAYS
• Packaging Details: AS CUSTOMER REQUIREMENT

Blackodising Corrosion Resistance :

Blackodising Corrosion Resistance is a conversion coating formed by a chemical reaction produced when parts are immersed in the alkaline aqueous salt solution operated at approximately 135º C. The reaction between the iron of the ferrous alloy and the hot oxide bath produces a magnitite (Fe3 O4) on the actual surface of the part. It is possible to oxidize non-ferrous metals under suitable conditions to form black oxides. It is possible to apply black oxide at room temperature, however it is not possible to achieve all of the benefits available from the "hot" oxide process. The cold black oxide process routinely shows color variation from part to part and the black material frequently rubs off in your hands.
In order to determine the appropriate after-finish, it must be evaluated which after-finish to use. The following factors should be considered:In order to determine the appropriate after-finish, it must be evaluated which after-finish to use. The following factors should be considered:

 Length of protection required
 Desired finished appearance (gloss/matte)

 Storage conditions (humidity, vapor, temperature)
 Final application

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