PTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve Fastener

Product Details
Customization: Available
Material: A193 A453 A320 A182
Type: Hexagon Head
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  • PTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve Fastener
  • PTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve Fastener
  • PTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve Fastener
  • PTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve Fastener
  • PTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve Fastener
  • PTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve Fastener
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Basic Info.

Model NO.
M6-M100 1/4′′-4′′
Head Style
Hexagonal
Standard
DIN, ANSI, GB, JIS, BSW, GOST, ASME ASTM
Grade
B7 B8 A193
Application
Machinery, Chemical Industry, Environmental, Building
Finish
Black,PTFE,Passivation
Thread
Full Thread,Half Thread,Unc,Unf,Bsw,Bsf
Transport Package
Carton
Specification
M6-M100 1/4′′-4′′
Trademark
OEM
Origin
Hebei Handan
HS Code
731815
Production Capacity
500tons/Month

Product Description

PTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve FastenerPTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve Fastener
 Heavy Duty ASTM A193 B7 A194 2h Bolt and Nut  Hex Large A325 Structural Bolts
  
Stud Bolt Materials

   The most common materials for stud bolts (for flanges) are ASTM A193 (grade B7, B8, B8M, B8T), ASTM A453 (grade 660), ASTM A320 (grade L7, L7M), and ASTM A182 (duplex and super duplex bolting). For aggressive fluids and environments, stud bolts can be coated with Xylan/PTFE, Zinc and other materials.

PTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve Fastener

 

ASTM A193 Stud Bolts: Chemical Composition

Physical Element ASTM A193 grade B7 (AISI 4140) ASTM A193 grade B8 (AISI 304) ASTM A193 grade B8M (AISI 316)
Carbon 0.38 - 0.48% 0.08% max 0.08% max
Manganese 0.75 - 1.00% 2.00% max 2.00% max
Phosphorus, max 0.035% 0.045% 0.045%
Sulfur, max 0.040% 0.030% 0.030%
Silicon 0.15 - 0.35% 1.00% max 1.00% max
Chromium 0.80 - 1.10% 18.0 - 20.0% 16.0 - 18.0%
Nickel absent 8.0 - 11.0% 10.0 - 14.0%
Molybdenum 0.15 - 0.25% absent 2.00 - 3.00%

ASTM A193 Stud Bolts: Mechanical Properties

ASTM A193 Size Min Tensile Strength (KSI) Min Yield Strength (KSI) Min Elongation (%) RA % min Max HBW Max HRC
ASTM A193 grade B7 Up to 2-1/2 125 105 16 50 321 35
2-5/8 - 4 115 95 16 50
4-1/8 - 7 100 75 18 50
ASTM A193 grade B8 Class 1 All 75 30 30 50 223 35
ASTM A193 grade B8M Class 1 All 75 30 30 50 223 96
ASTM A193 grade B8 Class 2 Up to 3/4 125 100 12 35 321 35
7/8 - 1 115 80 15 35
1-1/8 - 1-1/4 105 65 20 35
1-3/8 - 1-1/2 100 50 28 45
ASTM A193 grade B8M Class 2 Up to 3/4 110 95 15 45 321 35
7/8 - 1 100 80 20 45
1-1/8 - 1-1/4 95 65 25 45
1-3/8 - 1-1/2 90 50 30 45
    The material chosen for the threaded stud and the hex nuts should be compatible. Materials for bolting sets shall be selected based on the process's working temperatures, as shown in the table below
  TEMPERATURE °C ( °F )
STUD BOLTS MATERIALS MIN. MAX.
CARBON STEEL -29 (-20) 300 (572)
A193 B7, L7 -73 (-100) 400 (752)
A193 B6 0 (32) 500 (932)
A193 B8 -200 (-325) 575 (1067)
A193 B16 0 (32) 520 (968)
A193 B17B -29 (-20) 650 (1202)
A913 Inconel 718 0 (32) 750 (1382)
A453 Gr. 660 -29 (20) 538 (1000)

ASTM A453 Stud Bolts for High-Temp. Service

ASTM A320 Stud Bolts for Low-Temp. Service

Stud Bolts' Coating

 Stud bolts can be coated to increase the resistance to corrosion. The most common types of coatings for stud bolts are listed below:

  • Electro zinc plating
  • Electro cadmium plating
  • Hot dip galvanizing
  • PTFE Coating
  • Phosphate coating
  • Electroless nickel plating
  • Zinc-nickel coating
  • Aluminum coating
  • Silver coating
  • Zinc/Nickel by electrodeposition
  • Xylan coating

PTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve FastenerPTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve FastenerPTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve Fastener
PTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve FastenerPTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve FastenerPTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve FastenerPTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve FastenerPTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve FastenerPTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve FastenerPTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve FastenerFree Samples for Standard Fastener from Hebei Zhuding Fastener
We Promise:
1.High quality
2. Competitive price
3. The shortest delivery
4. The fastest response
5. The best service
1.Are you a factory or trading company?
We are Manufacture which got import export certificate.Our company have rich experience in the export of fasteners.
  We can provide you with professional fasteners selling and smooth export services.

2.How about your price?
Price are competitive and reasonable.

Produce high efficiency,Quality and Stability.
OEM Accepted.
3. How do you control your quality?
We require the quality control department to inspect every production link of each shipment. And we can provide you mill certificate when the goods is finished.
4.How about your delivery time?
General speaking, if the goods is in stock, we can delivery them with 2-5days, If the products need to produce,we can give you with 15-20days.When you are in urgent need, we can give priority to expedited production
5.What is your packing?

Normal Packing20-25kgs/carton,25/50kgs for 1 bag
Support customized packing according to requirement.
Awaiting for your kind inquiry! Thanks & best regards!
PTFE Coated ASTM A193 B7 Stud Bolt A194 2h Nut Valve Fastener

 

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