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JST Studbolts (PTFE)

QUALITY

Materials

Selection of Stock Materials

Carbon / Alloy Steels
ASTM A193 B7 Imperial / Metric
B7M Imperial / Metric
B16 Imperial / Metric
ASTM A320 L7 Imperial / Metric
L7M Imperial / Metric
L43 Imperial
Stainless Steel
ASTM A193 B6 Imperial
B8C Imperial
B8 CI.1 Imperial / Metric
B8 CI.2 Imperial / Metric
B8M CI.1 Imperial / Metric
B8M CI.2 Imperial / Metric
B8M CI.2/B Imperial
B8T Imperial / Metric
Duplex
ASTM A453 660A Imperial
660B Imperial
UNS S31803 Imperial
Aluminium Bronze
DGS 1043 Imperial

SPECIALISED COATINGS

PTFE, Ceramic and Plated Finishes

With advances in technology, JST Coating Services has developed a reputation for the application of PTFE, Zinc, Nickel, Hot Dipped Galvanized, Cadmium, Chromium and other coatings to specification.

These specialised coatings include:

Xylar 1:

  • Aluminium “Cermet” Coating
  • Excellent Corrosion & Abrasion Resistance „ Extreme Temperatures: -400oC to +535oC

Dykor PVDF Tri Coating:

  • Dykor 204 Base, Cykor 205 Mid, Dykor 202 Top „ High Chemical, Corrosion & Abrasion Resistance

SEALING COMPONENTS

Ring Type Joints

Ring Joint Gaskets are Precision Fabricated metallic Sealing Rings, suitable for High Temperature and High Pressure operations. Manufactured to API 6A and ASME B16.20 Specifications.

Spiral Wound Gaskets

Spiral Wound Gaskets (SWG) are Manufactured to International Standards or Customer Specifications. These are Available with or without Guide Rings, and can be Manufactured up to 3 meters in diameter.

Insulation Kits and Materials

JST Coating Services Supply a wide range of Insulating Kits and Materials, including Central Insulating

Gaskets, Insulating Bolt Sleeves, Insulating Washers and mild steel Backing Washers. These components can be Complemented by our range of Bolts for Complete Insulation.

PRECISION FABRICATION

Manufacturing

JST Coating Services Manufactures turned Product from bar stock in All Sizes ranging from 6mm (1/4”) to 100mm (4”) in diameter with Metric and Imperial thread rolling capacity.

Fasteners and Components

With investment in Cutting Edge Technology, JST Coating Services produce High Quality, Cost Effective Components to meet Any Engineering Standards and Customer Design Requirements. With the use of CAD (computer aided design) services, we have the ability to produce high quality, precision machined components.

Along with our manufacturing facility in Sattahip, Thailand, JST has regional offices in:

  • Bangkok (Head Office)
  • Songkhla
  • Ho Chi Minh City (Vietnam)
  • Dhaka (Bangladesh)
  • Cape Town (South Africa)

JST also has Distributors in regional markets. As JST’s services are expanding, visit the JST website www.jst-group.com for more information.

Being strategically located in Thailand, JST is well positioned to Manufacture and Supply Coated Fasteners and Gaskets in Accordance to International Sandards. JST Coating Services works in accordance with ISO 9001, with the Ability to provide Custom Coating Solutions with full traceability to industries where Quality and Safety are Critical.

JST is the Supplier of Choice in providing Cost Effective, Quality Stud Bolts, Sealing Products, and other Coating Services.

Other JST Services

  • UHP (Ultra High Pressure) Blasting
  • Human Resources
  • Asset Integrity/Maintenance
  • CAD (Computer Aided Design)
  • Industrial Sales and Services
  • Heat Treatment
  • Bolt and Torque
  • Electric Heat Tracing, Electric Heater and Fire Survival Cable

Other JST Coating Systems

  • GUARDIAN Petrolatum Systems
  • GUARDIAN Splash-zone Systems
  • GUARDIAN Bituwrap
  • GUARDIAN Heat Shrink Sleeves
  • GUARDIAN Glass Wrap

S.E. ASIA

JST Coating Services is a market leader in the Manufacture and Supply of Specialist Bolts, Gaskets, Seals and Machined Components. A division of J.S. Technical Services and part of the JST Group, these specialised coating services are complemented by JST’s Pipeline and Marine Services. JST has long been established in S.E. Asia, with over 45 years of Experience in the
Oil and Gas Industry.

Working with Global Business Partners, JST employs 1,300+ people throughout S.E. Asia, providing clients with specialised services including:

  • Expert Advice
  • Material Manufacturing, Sourcing and Supply
  • Installation and Maintenance Services

JST services the following industry sectors:

  • Oil & Gas
  • Petrochemical / Processing Plants
  • Power Plant
  • Utilities / Transmission
  • Heavy / Structural Engineering
  • Construction

For Capital and Maintenance Projects

In meeting the High Pressure, Extreme Temperature and High Precision Bolting requirements of the Offshore/Onshore, Petrochemical, Processing, Power Plant and Structural/Construction industries, components are available in high quality materials including 304, 316, 304L, 904L, 316L 32760, 31803 duplex and 32750 up to 100mm (4”) in diameter. These are manufactured to customer specifications including ASTM A307, A325 and A490 Standards in full or part threaded (metric and imperial) individual bolts or assembled bolting sets. ASTM structural and anchor bolts are offered as hot dip galvanised (to ASTM A 153), cadmium plated and zinc coated.

High Performance Bolting

As a leading manufacturer of high precision fasteners, we are uniquely Positioned to Supply Fasteners to Internationally Accepted and Custom Standards. These include Bolts, Double End, Tap End and All-Thread Studs, etc. in exotic alloys (Metric and Imperial). Custom Machining is also Available to Client Specifications.

Thread Forms Diameter Range Standards
UNC StudBolts ASTM
UN From 1/4”–6” diameter in Imperial DIN
METRIC FINE M6–M100 diameter in Metric BS
METRIC COARSE AS
UNRC Hexagon Bolts JIS
UNF 1/4”–4” diameter in Imperial SAE
Client specific requirements including truncated and trapezoidal threads M6–M72 diameter in Metric (non-standard or oversized bolts made to order)

 

Forms

  • Stud Bolts
  • Heavy Hexagon Nuts
  • Heavy Hexagon Bolts
  • Heavy Hexagon Set Screws
  • Turbine Bolts
  • Stems
  • Connector Rods
  • 12pt Ferry Bolts
  • U-Bolts
  • Washers
  • Collar Bolts
  • Anchor Bolts
  • Socket Head Cap Screws
  • Riser Bolts
  • Bonnet Bolts
  • Waisted and full body studs
  • Pins, Shafts, Clips
  • Pipe Hangers
  • Self Locking Nuts
  • High Pressure Ring Joints
  • Industrial Gaskets
  • Waisted and Full Bodied Studs
  • Round and Cop Nuts
  • Helicoil Inserts
  • Soft Cut Gaskets

Typical Applications:

  • Chemical Processing
  • Heat Exchangers
  • Flu-Pipes
  • Valves
  • Pipe Fittings
  • Pumps
  • Tanks
  • Reactor Vessels
  • Sucker Rods
  • Oil Well Tubing
  • Couplings
  • Fan Drive Clutch

PTFE for Fasteners

Xylan 1070:

  • Reduces Make-up and Break-out Torque
  • Low Friction
  • High Corrosion & Abrasion Resistance

Xylan 1010:

  • Dry-Film Lubricant for Wear Surfaces „ Reduces Friction
  • Prevents Scoring / Galling
  • Low Friction Coefficient (0.04-1.00)
  • Good Chemical & Abrasion Resistance „ Temperatures up to 285oC (550oF)

Xylan 1014:

  • Xylan 1010 with Increased Bonding Resin
  • Harder, Less Porous & More Abrasion Resistant
  • Low Friction

Xylan 1052:

  • High-Pressure, High Temperature
  • Low-Speed Wear Applications
  • Bearing Surfaces
  • PTFE and MoS Bonded Lubrication
  • Pressure up to 10,500 kg/cm2 (150.000 psi)
  • Temperatures up to 285oC (550oF)

Xylan 1270 (1400):

  • Xylan 1070 (1424) Alternative
  • Lower Lubrication
  • Reduced Break-out Torque

Xylan 1311:

  • For Critical Abrasion Resistance
  • With PPS and PTFE

Xylan 1331:

  • Xylan 1311 with more PTFE
  • For Chemical, Corrosion and Wear / Abrasion Resistance
  • Highly Resistant to Solvents up to 205oC (400oF)

 

Standard Components
ASTM A 153 Rolled / Pressed Steel / Hardware
ASTM A 641 Carbon Steel Wire (Nails / Staples / etc.)
ASTM B 695 Iron and Steel
ASTM A 123 Iron and Steel Anchor , Fabricated Products
BS EN ISO 1461 Heavy Zinc Deposits 388.1 to 76.2 microns
ASTIM B633 Iron and Steel Products
BS 3382 PART 2 Bright Finish
BS 3382 PART 1 Semi-bright Finish
AMS 2416 Steel
BS 3382 PART 3 & 4 Steel and Copper Alloy
BS 3189 DEF 29 Dark Black Finish, Coating sealed with Oil or Grease
BS ISO 11408 Steel and Iron
Dry Film Lubricants Dry Moly
Xylan 1014
Xylan 1010 with Increased Bonding Resin
Harder, Less Porous & More Abrasion Resistant
Low Friction
Xylan 1052:
High-Pressure, High Temperature
Low-Speed Wear Applications
Bearing Surfaces
PTFE and MoS Bonded Lubrication
2
Pressure up to 10,500 kg/cm2 (150.000 psi)
Temperatures up to 285oC (550oF)
Xylan 1270 (1400):
Xylan 1070 (1424) Alternative
Lower Lubrication
Reduced Break-out Torque
Xylan 1311:
For Critical Abrasion Resistance
With PPS and PTFE
Xylan 1331:
Xylan 1311 with more PTFE
For Chemical, Corrosion and Wear / Abrasion Resistance
Highly Resistant to Solvents up to 205oC (400oF)