PTFE Coated Fasteners

PTFE Coated Fasteners

Rimco Overseas Provide PTFE Coated Fasteners to get extraordinary erosion obstruction, exceptionally low coefficient of rubbing, steady tensioning and simplicity of establishment and evacuation to clients. Broad testing and field use have demonstrated that the eventual fate of covered latch's lies withFluoropolymer Coatings. Beforehand hot plunge, electrifies, cadium or zinc plated latch's were viewed as the standard. Be that as it may, these coatings couldn't confront the destructive airs predominant in numerous ventures. The most generally utilized application is on a193 B7 studs with 2H nuts.

PTFE is an abbreviation for Polytetrafluoroethylene which is a two-coat non-sticky fluropolymer covering. PTFE has the most astounding working temperature among any fluoroplastic polymer. PTFE have very low co-productive of erosion, great synthetic opposition and medium to reasonable scraped area obstruction. PTFE is appropriate as a dry grease with low co-proficient of erosion.

After PTFE Coating, latches get sensational upgrades in proficiency, future and erosion opposition are professed to be bestowed to Nut and Bolt connectors by the use of a low grating PTFE covering. PTFE covered connectors have out-played out all others in forceful any observable effect.

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Where is PTFE used?

PTFE is widely utilized as a covering for Fasteners utilized in Oil & Gas, Marine & Offshore applications. PTFE covered latches stands remarkable to Salt Spray Test. It has extraordinary discharge capacities and can withstand a most extreme use temperature of 600°F, higher than any fluoropolymer. This covering is ordinarily connected to a thickness of 1-3 mils. Ptfe is likewise generally alluded by their tradename/brands, teflon, xylan, and so forth. These fluoro poly settles on phenomenal decision for agressive condition. Ptfe or teflon covered latches are generally utilized in coastal and seaward building applications.

PTFE Coating Process

Object exposed to PTFE covering is warmed to clean and expel abundance outside particles in type of earth, oil and different stains, which can influence the grip of the covering. The substrate is then sand impacted to build the attachment of the covering. At that point the groundwork layer is connected, for this situation, we use zinc base layer of 20 microns pursued by best layer of PTFE. PTFE covering is accessible in dark, blue, green, red, white, yellow, orange, purple, etc.

Why to Coat Bolts with PTFE Coatings?

  • Cleaning and painting of uncovered steel rushes in the field is probably going to be troublesome, costly, and now and again, not feasible.
  • The plain dashes, in the wake of stuffing in the openings, are relied upon to sit out in the climate for an all-inclusive timeframe and get dried out and corroded, making right fixing troublesome or impossible.
  • Release or retightening of the jolt inside the not so distant is necessary.
  • Due to its one of a kind advantages, Fluoropolymer Coating has been connected to different sorts and grades of latches. The water works industry exploits the predominant consumption obstruction properties by covering Hex-head jolts for underground administration. Tempered steel latches, utilized in a wide range of businesses, are covered for lubricity and hostile to galling.
  • Fluoropolymer coatings are incredibly sturdy and not actually evacuated. Be that as it may, amid gathering of clasp in the field, the covering can now and again be harmed. With most other fluoropolymer coatings, this outcomes in uncovered exposed metal that rapidly starts to demonstrate erosion and makes the covering fall flat. Our metallic base coat guarantees better consumption obstruction and proceeds than give security even under the harshest conditions.

 

PTFE Coated Bolt Friction factor

ft-lbs to nm = 0.737562149277
nm to ft-lbs = 1.3558179

TORQUE FT-LBS - PTFE COATED ASTM A193 B7 & ASTM 193 B16 STUD BOLTS
BOLT
DIA
TORQUE FT-LBS
30% Initial
Torque
70%
Torque
100% Final
Torque
1/2 12 29 41
9/16 18 41 59
5/8 24 57 82
3/4 43 101 145
7/8 70 163 233
1 105 245 350
1⅛ 154 359 513
217 505 722
1⅜ 294 685 979
388 905 1292
19/16 441 1030 1471
1⅝ 501 1169 1670
631 1471 2102
1⅞ 783 1827 2610
2 960 2240 3199
1388 3238 4626
1923 4487 6410
2341 5462 7802
3 3061 7143 10204

 

TORQUE NM - PTFE COATED ASTM A193 B7 & ASTM 193 B16 STUD BOLTS
BOLT
DIA
TORQUE NM
30% Initial
Torque
70%
Torque
100% Final
Torque
1/2 16 39 56
9/16 24 56 80
5/8 33 77 111
3/4 58 137 197
7/8 95 221 316
1 142 332 475
1⅛ 209 487 696
294 685 979
1⅜ 399 929 1327
526 1227 1752
19/16 598 1396 1994
1⅝ 679 1585 2264
856 1994 2850
1⅞ 1062 2477 3539
2 1302 3037 4337
1882 4390 6272
2607 6084 8691
3174 7405 10578
3 4150 9685 13835

 

Advantages of PTFE Coating

  • High temperature resistance
  • Low coefficient of friction
  • Corrosion resistance
  • Chemical resistance
  • Easy assembly & removal

 

PTFE Coating Specifications

Tensile Strength (ASTM D1708) 3000-5000 psi
Elongation (ASTM D1457) 300-500%
Impact Strength (ASTM D256) 3.5 ft-lb/in
Hardness (ASTM D2240) 50-65 HB (shore D)
Abrasion Resistance (Tabor) 12 mg
Coefficient of Friction (ASTM D1894) 0.12 -0.15 static, 0.05 -0.10 dynamic
Dielectric Strength (ASTM D149) 450 volts per mil
Use Temperature 600°F max
Melting Point 625°F
Thermal Conductivity 1.7 BTU-in/h-ft 2-°F
Chemical Resistance (ASTM D543) Excellent
Salt Spray Resistance (ASTM B117) Fair
Water Absorption (ASTM D570) 0.01%
Thickness 20 - 40 Microns

TYPES OF BOLTS

12 Point Flange Bolt
round head bolts
Carriage Bolts
Flange Bolts
Structural Bolts
Tension Indicating Bolts
Heavy Hex Cap Screws & Heavy Hex Bolts
Square Head Bolts
U-Bolts
Serrated Flange Bolts
Plow Bolts
Hanger Bolts
Elevator Bolts
Eye Bolts
Tension Control Bolts
Connector Bolts
Tower Bolts
Penta Bolts
Step Bolts
Coil Bolts
J-Bolts
Sidewalk Bolts
Timber Bolt
Bin Bolts
U-Bolt Plates
Track Bolts
Hurricane Bolts
Draw Bolts
Lag Bolt
Stove Bolt
Machine Bolt
Tap Bolt
Shoulder Bolt
T Head Bolts
Screw Thread Eye Bolt
Square U Bolts
Through Bolts
Toggle Bolts
Torx Bolts
Wing Bolts
Bent Bolts
Banjo Bolts
Anchor Bolts
Allen Head
Threaded Rod
Turned Eye Bolts
socket head
Wheel Bolts
Cable Reel Bolts
Button Head Bolts
Bolt Caps
Tee Hammer Bolts
Fish Bolts
Castle Tap Bolts
Counter Sunk Bolts
Deck Bolts
Eye Bolts Without Shoulder
Serrated Flange Bolts
Freight Car Bolts
Shoulder Eye Bolts
Hex Head Hollow Bolts
Hex Flange Bolts
Hex Head Bolts
Hollow Allen Head Bolts
Stud Bolts
Lifting Eye Bolt
Long Bolts
Jack Bolt
Rod Ends Bolts
Roofing Bolts

 

OTHER TYPES OF BOLTS

Stainless Steel Bolts :
AISI 302, 304, 304L,316, 316L, 310, 317, 317L, 321, 347, 410, 420,904L etc.

Duplex & Super Duplex Steel Bolts :
ASTM / ASME A815 UNS No. S31803, UNS No. S 32205, UNS No. S 31254, UNS No. S 31550, UNS No. S 32750, and UNS No. S 32760

Carbon Steel Bolts :
ASTM A307, A193

Alloy Steel Bolts :
ASTM / ASME A/SA 193 / 194 B 6, B 7/ B 7M, B 16, 2, 2HM, 2H, GR 6, B 7, B 7M

Nickel Bolts Alloy Bolts :
ASTM / ASME SB 160 / 164 / 425 / 166 / 446 / 574 / 472 UNS 2200 (Nickel Bolts 200) / UNS 2201 (Nickel Bolts 201), UNS 4400 (MONEL 400), UNS 8825 (Inconel 825), UNS 6600 (Inconel 600) / UNS 6601 (Inconel 601), UNS 6625 (Inconel 625), UNS 10276 (HASTELLOY C 276), UNS 8020 (ALLOY 20 / 20 CB 3)

 

Bolts Material & Grade

Stainless Steel Bolts

  •  304 Stainless Steel Bolts
  •  304L Stainless Steel Bolts
  •  904L Stainless Steel Bolts
  •  17-4PH Stainless Steel Bolts
  •  304H Stainless Steel Bolts
  •  310 Stainless Steel Bolts
  •  321 Stainless Steel Bolts
  •  347 Stainless Steel Bolts
  •  410 Stainless Steel Bolts
  •  310S Stainless Steel Bolts
  •  316 Stainless Steel Bolts
  •  316H Stainless Steel Bolts
  •  316L Stainless Steel Bolts
  •  317 Stainless Steel Bolts
  •  317L Stainless Steel Bolts
  •  321H Stainless Steel Bolts
  •  446 Stainless Steel Bolts

 

Carbon Steel Bolts

  • A307 Bolts
  • A563 Bolts

 

Alloy Steel Bolts

  • A193 Bolts
  • A320 Bolts

 

Inconel Bolts

  • Incoloy 925 Bolts
  • Incoloy 825 Bolts
  • Inconel 625 Bolts
  • Inconel 601 Bolts
  • Inconel 602 Bolts
  • Inconel 603 Bolts
  • Incoloy 800 Bolts
  • Incoloy 800H Bolts
  • Inconel 600 Bolts
  • Inconel 686 Bolts

 

Monel Bolts

  • Monel K-500 Bolts
  • Monel 400 Bolts

 

Hastelloy Bolts

  • Hastelloy C22 Bolts
  • Hastelloy C276 Bolts

 

Titanium Bolts

  • Titanium Grade 5 Bolts
  • Titanium Grade 2 Bolts

 

Stock Of Bolts As Per ASTM Specification

  • ASTM A193 Bolts
  • ASTM A307 Bolts
  • ASTM A320 Bolts
  • ASTM A325 Bolts
  • ASTM A354 Bolts
  • ASTM A449 Bolts
  • ASTM A490 Bolts
  • ASTM F593 Bolts
  • ASTM F1554 Bolts
  • ASTM F3125 Bolts

 

Bolts As Per DIN Specification

  • ASTM A193 Bolts
  • ASTM A307 Bolts
  • ASTM A320 Bolts
  • ASTM A325 Bolts
  • ASTM A354 Bolts
  • ASTM A449 Bolts
  • ASTM A490 Bolts
  • ASTM F593 Bolts
  • ASTM F1554 Bolts
  • ASTM F3125 Bolts

 

  • DIN 6921 Bolts
  • DIN 603 Bolts
  • DIN 2510 Bolts
  • DIN 580 Bolts
  • DIN 582 Bolts
  • DIN 444 Bolts
  • DIN 939 Bolts
  • DIN 933 Bolts
  • DIN 931 Bolts
  • DIN 976 Bolts
  • DIN 912 Bolts
  • DIN 6325 Bolts
  • DIN 6914 Bolts
  • DIN 3570 Bolts
  • DIN 7990 Bolts
  • DIN 1B Bolts
  • DIN 529 Bolts

 

COATINGS

 

OUR SUMMARY :
Review Date
Reviewed Product
PTFE Coated Fasteners
Author Rating

 

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