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    sales@tubotechalloys.com
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    Pathan Durgadevi Udyan, Ground Floor, 25 Plot No 74/80, Patra Chawl, Maruti , Mandir Marg, Second Street, Girgaon, Mumbai, Maharashtra 400004

B8M Fasteners

Introduction

At Tubotech we focus on delivering high performance ‘Fastening’ solutions for your business. Hence, we offer you B8M Stainless Steel fasteners as the ultimate piping and tubing solutions. Since, they possess outstanding properties such as exceptional strength and corrosion resistance. 

Our B8M Stainless Steel fasteners have been manufactured using AISI 316 stainless steel which possesses ‘Anti-Strain’ mechanical properties.  

More importantly, at Tubotech we specifically design B8M Stainless Steel fasteners which offer resistance to pitting, crevice corrosion, and chloride environments. Thereby, making them the no. 1 trusted choice for engineers and maintenance professionals seeking long-lasting, dependable fastening components.

Specifications Chart of B8M Stainless Steel Fasteners:

All the essential specifications information about B8M Stainless Steel fasteners are given in the table below:

Property Details
Standard ASTM A193 / A193M – Grade B8M
Material Equivalent AISI 316 Stainless Steel
Available Classes Class 1 (Strain Hardened), Class 2 (Solution Annealed + Strain Hardened)
Corrosion Resistance Excellent (resistant to chlorides, acids, and marine environments)
Typical Applications Chemical processing, marine, food processing, oil & gas, pharmaceuticals
Size Range (Metric) M6 to M56
Size Range (Inch) 1/4″ to 2″
Thread Types Metric (Coarse / Fine), UNC, UNF, 8UN
Operating Temperature Up to 870°C (1600°F)
Compatible Nut Spec ASTM A194 Grade 8M (for high-pressure/high-temp applications)
Common Fastener Types Hex Bolts, Studs, Threaded Rods, Nuts, Washers, Cap Screws, Custom Parts

Chemical Composition of B8M Stainless Steel Fasteners

Typically, B8M Stainless Steel fasteners is made from AISI 316 Stainless Steel as per ASTM A193 Grade B8M contains the following chemical compounds given in the table below:

Element Minimum (%) Maximum (%)
Carbon (C) 0.08
Manganese (Mn) 2.00
Phosphorus (P) 0.045
Sulfur (S) 0.030
Silicon (Si) 1.00
Chromium (Cr) 16.0 18.0
Nickel (Ni) 10.0 14.0
Molybdenum (Mo) 2.0 3.0
Nitrogen (N) 0.10
Iron (Fe) Balance Balance

Mechanical Properties of B8M Stainless Steel Fasteners

For all details on the mechanical properties of  B8 Stainless Steel fasteners please refer to the table below:

Property Value (Minimum)
Tensile Strength 760 MPa (110 ksi)
Yield Strength (0.2% offset) 450 MPa (65 ksi)
Elongation (% in 50 mm) 15%
Reduction of Area 35%
Hardness ≤ 223 HB (Brinell)
Operating Temperature Range Up to 538°C (1,000°F)

Pathan Durgadevi Udyan, Ground Floor, 25 Plot No 74/80, Patra Chawl, Maruti , Mandir Marg, Second Street, Girgaon, Mumbai, Maharashtra 400004

These fittings are crucial in ensuring smooth, dependable, and ordinary fluid and gas waft at some stage in various high-stakes programs.

Types of B8M Stainless Steel Fasteners:

There are a mix of a few types and subtypes of B8M Stainless Steel fasteners. They are given below:

1. Bolts:

  • Heavy Hex Bolts
  • Hex Head Bolts
  • Flange Bolts
  • Carriage Bolts
  • U-Bolts / J-Bolts
  • Anchor Bolts
  • Shoulder Bolts
  • Eye Bolts
  • Socket Head Cap Screws (Allen Bolts)

2. Nuts:

  • Heavy Hex Nuts
  • Hex Nuts  
  • Cap Nuts
  • Flange Nuts
  • Cap Nuts 
  • Coupling Nuts 

3. Screws:

  • Pan Head / Flat Head / CSK Screws
  • Set Screws (Grub Screws
  •  Machine Screws
  • Self-Tapping Screws
  • Self-Drilling Screws

4. Threaded Rods & Studs:

  • Double-End Studs
  • Continuous Thread Studs
  • Tap-End Studs
  • Full Threaded Rods (1m, 2m, custom lengths)

5. Washers:

  • Spring Washers
  • Plain Washers
  • Lock Washers
  • Belleville (Conical) Washers

6. Specialty fasteners:

  • fasteners for high-temperature or corrosive environments
  • Non-standard / Custom-Machined fasteners
  • Compliant with NACE, PED, or pressure vessel codes (on request)

Sizes of B8M Stainless Steel Fasteners:

Depending on the types of B8M Stainless Steel fasteners there are various sizes available. They are given in the tabular form below:

Fastener Type Metric Sizes Inch Sizes Length Range
Hex Bolts / Cap Screws M6 to M56 1/4″ to 2″ 6 mm to 300 mm (1/4″ to 12″)
Stud Bolts M6 to M48 1/4″ to 2″ 20 mm to 1000 mm (3/4″ to 40″)
Threaded Rods M6 to M48 1/4″ to 2″ 1 m, 2 m, or custom lengths
Nuts (A194 Grade 8M) M6 to M56 1/4″ to 2″
Washers M6 to M56 1/4″ to 2″
Screws M3 to M24 #4 to 1″ 6 mm to 150 mm (1/4″ to 6″)

Weight Charts of B8 Stainless Steel Fasteners:

The  B8M Stainless Steel fasteners weight will depend on the types of fasteners. Information is given below in the table below:

a. Hex Bolts – Full Threaded:

Size Length (mm) Weight per 100 pcs (kg)
M6 20 1.35
M8 30 2.50
M10 40 4.70
M12 50 7.20
M16 60 12.60
M20 80 20.40
 

b. Hex Nuts:

Size Weight per 100 pcs (kg)
M6 0.32
M8 0.55
M10 0.95
M12 1.35
M16 2.30
M20 3.80

c. Threaded Rods:

Diameter Weight per Meter (kg)
M6 0.25
M8 0.40
M10 0.64
M12 0.93
M16 1.60
M20 2.55
 

d. Flat Washers:

Size Weight per 100 pcs (kg)
M6 0.14
M8 0.24
M10 0.38
M12 0.58
M16 0.92
 

Industrial Application of B8M Stainless Steel Fasteners:

It is due to their high ‘Corrosion Resistance’ that B8M Stainless Steel fasteners are used in a wide range of industrial applications. They are given below:

  • Marine and Offshore applications
  • Oil and Gas Industry
  • Food and Beverage Processing
  • Pharmaceutical and Biotechnology
  • Power generation
  • Water treatment

Why choose Tubotech for B8M Stainless Steel Fasteners?

Apart from delivering precision-engineered B8M Stainless Steel fasteners which delivers high-performance and meet ‘Eco-Friendly’ standards, there are many other reasons why you should choose Tubotech, one of the best piping and tubing manufacturers in India. They are given below:

  • Superior premium material availability
  • Offer of customization
  • Presentation of wide range of products
  • Quality technical expertise and support
  • Efficient and quick delivery

Contact Us To Get a Quote

Choose Tubotech for your subsequent project concerning B8M Stainless Steel fasteners and benefit from reliability and quality. Whether your requirement is small batch or bulk export, our technical institution is here to help you.