Xylan 1070 coated A193 B7 Stud bolt

Xylan 1070 Coated ASTM A193 B7 Stud Bolts | PTFE Coated Fasteners for Corrosion and High-Temperature Resistance

China’s Leading Manufacturer and Exporter of  Xylan 1070 coated ASTM A193 B7 Stud bolt– Offering Premium Fasteners for Harsh Environments.

What is Xylan 1070 Coating?

Xylan 1070 is a high-performance fluoropolymer-based coating (often referred to as PTFE or Teflon) developed by Whitford Worldwide. It is one of the most popular grades of Xylan® coatings, known for its exceptional corrosion resistance, low friction, and high durability. Xylan 1070 provides reliable protection for fasteners, especially in marine, offshore, and petrochemical applications.

Xylan 1070 Coating Benefits:

• Superior corrosion resistance: Effective protection against saltwater, harsh chemicals, and oxidation.
• Low friction: Reduces wear and tear, prevents galling, and facilitates easy assembly and disassembly.
• High-temperature stability: Can withstand temperatures ranging from -195°C to 260°C (-319°F to 500°F).

Xylan 1070 is specifically formulated to enhance leak prevention for fasteners in environments exposed to aggressive chemicals, saltwater, and extreme temperatures. Its low friction and dry lubrication properties are especially beneficial in applications such as drilling platforms and marine infrastructure.

Is Xylan 1070 the Same as Fluorocarbon Coating? (PTFE, Xylan, Teflon)

Fluorocarbon coatings are a class of coatings made from fluoropolymers like PTFE (Polytetrafluoroethylene). These coatings are known for their chemical resistance, low friction, and high-temperature stability. Xylan 1070 is a specific formulation of a fluoropolymer coating, which is solvent-based, while Xylan 1424 is water-based.

The key difference between these coatings lies in their binder systems and adhesion promoters, which contribute to their varying performance characteristics. Both coatings, however, offer excellent corrosion protection, wear resistance, and low friction properties.

Xylan 1070 Coated Stud Bolt Production Procedure

The Xylan 1070 coating process ensures that stud bolts receive a high-performance, durable finish. Here’s the typical procedure:

1. Base-Coating: Apply a base coat such as Zinc-plating, Zinc-Nickel Plating, or Zinc-Nickel to a thickness of 10-15 microns.
2. Surface Preparation: Shot blasting the fasteners to roughen the surface for better coating adhesion.
3. Coating: Apply the Xylan 1070 or Xylan 1424 PTFE coating to the fasteners in the desired color (e.g., blue, green).
4. Heat Treatment: Cure the coated fasteners for enhanced bonding and durability.

Xylan 1070 Coating Thickness

• Recommended Dry Film Thickness: 20 ± 5 microns (typical wet film thickness: 100 ± 25 microns).
• Coating Color: Common colors include blue, green, black, and yellow.

Benefits of PTFE Xylan 1070 Coated Stud Bolts

1. Exceptional Corrosion Resistance
Xylan 1070-coated fasteners provide superior protection against corrosion, making them ideal for marine, petrochemical, and offshore applications. The coating forms a protective barrier, significantly extending the service life of the bolts.

2. Galling and Seizure Prevention
The low friction properties of Xylan 1070 reduce the risk of galling, which can cause severe damage to threads. This makes assembly and disassembly easier, reducing downtime and maintenance costs.

3. High-Temperature Stability
Xylan 1070 can withstand extreme temperature ranges, from -200°C to 260°C (–328°F to 500°F), which makes it suitable for cryogenic applications as well as high-heat environments such as aerospace and automotive industries.

4. Reduced Torque and Improved Tightening
The low friction properties also reduce the required torque for fastening, leading to less stress on the threads and preventing over-tightening. This ensures a more accurate preload for a given torque, enhancing the integrity of the assembly.

5. Enhanced Durability and Longevity
Xylan 1070 coating reduces environmental wear on stud bolts, ensuring they last longer and require less frequent maintenance.

Applications of Xylan 1070 Coated Stud Bolts

1. Marine: Fasteners used in shipbuilding and offshore platforms exposed to saltwater.
2. Chemical Processing: Protects fasteners in environments with exposure to corrosive chemicals.
3. Petrochemical & Oil & Gas: Ideal for high-stress, high-pressure systems such as pipelines and refineries.
4. Automotive & Aerospace: Used for high-performance parts that require protection against wear, corrosion, and extreme temperatures.

Difference Between Xylan 1070 and Xylan 1424 Coatings

While both coatings are part of the Xylan® family and share similarities, they differ in their formulations, especially regarding the binder system and performance in certain conditions:

Color Options for Xylan 1070 Coating

Xylan 1070 can be coated in a variety of colors to meet application and aesthetic requirements. Common colors include:

• Blue (standard)
• Black
• Green
• Yellow
• Olive Green
• Orange
• Red
• Traffic Purple
• Azure Blue
• Teal Blue

If no color is specified, blue is the default color applied.

Technical Specifications of Xylan 1070 Coated Stud Bolts

• Material: ASTM A193 Grade B7 Stud Bolt
• Thread Type: UNC, 8 TPI
• Nut: Heavy Hexagonal per ASME / ANSI B18.2.2
• Thread Class: 2A for stud bolts, 2B for nuts
• Design Specification: ASTM A193 for Stud Bolt, ASTM A194 for Nuts

ASTM A193 B7 Chemical Composition %

A193 B7 Stud Bolt Mechanical Properties

Ordering Specifications for Xylan 1070 Coated Stud Bolts

1. Stud Bolt: 2-1/2″ Dia x 470mm Long, Fully Threaded
   Material: ASTM A193 Grade B7, Coating: Zinc Plating + Xylan 1070
   Quantity: Custom orders available

2. Stud Bolt: 1-1/2″ Dia x 170mm Long, Fully Threaded
   Material: ASTM A193 Grade B7, Coating: Zinc-Nickel + Xylan 1070
   Quantity: Custom orders available