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ASTM A193 B7 B7M carbon steel Fully Threaded Rod Nuts Stud Bolts and nuts

ASTM A193 B7 B7M carbon steel Fully Threaded Rod Nuts Stud Bolts and nuts

ASTM A193 B7 B7M carbon steel Fully Threaded Rod Nuts Stud Bolts and nuts
ASTM A193 B7 B7M carbon steel Fully Threaded Rod Nuts Stud Bolts and nuts
Product Details:
Place of Origin: China Made
Brand Name: HNF
Certification: ISO9001:2008
Model Number: 1/8"-3 1/2"
Payment & Shipping Terms:
Minimum Order Quantity: 600 kgs
Price: Negotiation
Packaging Details: Wooden Case
Delivery Time: 15-25 days
Payment Terms: L/C, T/T, Western Union, Paypal
Supply Ability: 600 tons per month
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Detailed Product Description
Product: ASTM A193 B7 B7M Carbon Steel Fully Threaded Rod Nuts Stud Bolts And Nuts Threaded: Fully Threaded
Dia.: 1/8"-3 1/2" Surface: PTFE Xylan Blue
Specification: ASTM A193 B7 B7M Grade: B7 B7M L7 L7M
Color: Blue Green Etc Name: Fluorocarbon
Pitch System: Metric Picth Nut: A194 2H
HS Code: 731815 Surface Coating: Xylan Blue 1424
Coating: Zinc And Zinc-Nickel Coated
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ASTM A193 B7 B7M carbon steel Fully Threaded Rod Nuts Stud Bolts and nuts 

PTFE is by the chemist Roy Planck in 1938 Dr (Roy j. Plunkett) in the Jackson laboratory of dupont in New Jersey, us surprise [1] : when he tried to make a new refrigerant chloride fluorocarbon compounds, four fluorine ethylene polymerization in high pressure storage container (container wall iron becomes polymerization catalyst).Dupont in 1941 its patents, and in 1944, in the name of the "PTFE" registered trademark.Subsequently, dupont in PTFE® again;Outside of ptfe resin has developed a series of products, including PTFE.AF (amorphous fluorinated polymer), PTFE;FEP (fluorinated ethylene propylene resins), PTFE.FFR (fluorine polymer foam resin), PTFE.NXT (fluorine polymer resin), PTFE;PFA (perfluorinated alkoxy resin) and so on.
Called the PTFE English Polytetrafluoroetylene, hereinafter referred to as PTFE, PTFE, F4, etc.Ptfe (Polytetrafluoroethene), commonly referred to as "non-stick coating" or "material" easy clean huo;Is a kind of using all the hydrogen atoms in the fluorinated polyethylene synthetic polymer materials.This material has the acid alkali resistance, resistance to the characteristics of various kinds of organic solvent, almost insoluble in all solvents.At the same time, ptfe has the characteristics of high temperature resistance, low coefficient of friction of it, so can make lubrication, and also become the easy clean huo ideal coating of pipe lining.
ASTM A193 B7 B7M Fluorocarbon coated PTFE Stud Bolts Full threaded Rod with ASTM A194 2H Heavy Nuts
The method of applying the coating shall ensure that damage through delayed embrittlement (hydrogen embrittlement) is avoided. This is particularly important in the case of high tensile steels of Grades B, C and D with tensile strength > 1000 N/mm². The application should be carried out in accordance with ASTM B841 and associated standards. The surface shall be treated with chromate conversion treatment according to ASTM B841 Section 4.
The coating shall be capable of passing the adhesion test specified in ASTM B571

The PTFE top coat for bolting components shall be Xylan 1070® (or) equivalent. The selected material shall contain polytetrafluorethylene together with polyamide /polyimide ester and colouring pigment and shall be the base cure type. The selected material shall withstand the temperature range of -50°C to + 200 °C.
The dry film thickness of the PTFE coating on the bolting component shall not be less than 25 microns and not greater than 40 microns. The coating shall be applied in accordance with ASTM D823. The application of coating shall be applied with a minimum of two (or) more layers.
The fluorocarbon coating system (PTFE) shall be tested in an ASTM B117 salt fog chamber for 3000 hours.
A corrosion resistance test for PTFE coat over Zn-Ni plated stud-bolts shall be carried out in accordance with ASTM B117 (salt spray test) for the time duration of 3000 hrs (minimum).

Name: (Maichuan) ASTM A193 B7 B7M carbon steel Fully Threaded Rod Nuts Stud Bolts and nuts
Equal Standard DIN975 DIN976 ASTM A193 ASTM A320
Nut A194 2H 2HM heavy nut
Standard No ASTM A193 ASTM A320
Material Alloy Steel(40Cr/35CrMo/4140)  
Grade B7 B7M L7 L7M B8 B8M
Dimension Metric size: 6mm-100mm, Inch size: 1/8"-3-1/2".
Surface treatment PTFE, PTFE, Xylan Blue, treatment: Plain, black finished, Zinc plated (Galv), Hot DIP Galvanized, Nickel, phosphate black, DACRO coating, etc.
Production Technique Cold forging, Hot forming, Machining, Heat treatment, Staming, etc
Package with mess
Sample Availble

Used for natural gas engineering,oil engineering, petroleum engineering, Marine engineering and other large-scale application engineering.
1, not sticky, almost all of the material with PTFE coating adhesion.Thin film also shows good adhesion performance.
2, heat resistance, PTFE coating has excellent heat resistance and low temperature resistant properties.Resistant to high temperature to 300 ℃, short time average between 240 ℃ ~ 240 ℃ can be continuous use, has significant thermal stability, it can work under freezing temperature and not brittle, not melt at high temperature.
3, sliding: PTFE coating has lower friction coefficient.Load when the sliding friction coefficient changes, but numerical only between 0.05 to 0.15.
4, wet resistance: non-stick PTFE coating surface of water and oil, the production operation is also not easy to touch solution, such as with a small amount of dirt, easy to wipe can be removed.Down time is short, can save time and improve the work efficiency.
5, the wear resistance: under high load, has excellent wear resistance.Under certain load, has the dual advantages of wear resistance and adhesion.
6, corrosion resistance: ptfe is almost not affected by drugs, able to withstand in addition to molten alkali metals, fluoride medium and higher than 300 ℃ all the strong acid sodium hydroxide (including aqua regia), strong oxidizer, reductant, and the role of various kinds of organic solvent, can protect the parts from the chemical corrosion of any kind.

ASTM A193 B7 B7M carbon steel Fully Threaded Rod Nuts Stud Bolts and nuts 0


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