ASTM A320 Grade B8 Fasteners

Manufacturer of SA194 Gr G8 Star Washer in India

Nitron Alloys Overseas is the prime producer, manufacturer, and supplier of high tensile Fasteners, Stud Bolts, Nuts, and Washers. We are manufacturing all these products by using suitable materials and grades like ASTM A193 Gr B8 and A194 Gr G8. We are choosing appropriate and highest quality raw materials for manufacturing these products. We are offering these ASTM A194 Gr B8 high tensile Fasteners in many dimensions and specifications. We are supplying these Stud Bolts and Nuts to chemical plants, fertilizer plants, and petrochemical plants. Our excellent quality Washers and Fasteners are suitable to use in many industrial applications.


Our high-grade ASTM A193 Gr B8 Fasteners are robust against stress corrosion cracks. With flawless finish and durability, our high-grade products are perfect for many operations. We are choosing pure material by testing before the manufacturing process. We are making our ASTM A193 Gr B8 Nuts and Washers sturdier and more durable. We are following all global quality standards and defined manufacturing processes while manufacturing these Fasteners. This makes us able to offer suitable products for our clients from all over the world. We, Nitron Alloys Overseas, has a team of quality analysts and experienced professionals. They are continuously supervising and testing the manufacturing process to ensure the quality of products and to avoid defects.


We, Nitron Alloys Overseas, are supplying ASTM A194 Gr G8 Fasteners and Stud Bolts in all required types and materials. We are producing these products in our manufacturing unit by using advanced machinery and tools. We are fabricating these Nuts and Washers in bulk amount and keeping ready stock to complete urgent orders. We are ensuring all quality parameters of these ASTM A193 Gr B8 high tensile Fasteners by conducting various destructive and non- destructive tests. Under the supervision of our skilled professionals, we are offering these Stud Bolts with features. By wrapping ordered products in suitable materials and by choosing fast shipping ways, we are offering convenient on-time and damage-free service to our esteem clients. We are fulfilling the needs of our esteemed clients from various industrial sectors by providing these high-grade Fasteners and Stud Bolts at reasonable prices.


Specification of Alloy Steel Gr.B8/G8 Fasteners

Spec bag

Specifications: ASTM A193,A194 / ASME SA320,SA194

Standard: DIN, ASTM, BS and all International Standards

Length: 3 mm to 200 mm

Size: M3 - M56 | 3/6" to 2" | Custom Sizes

Heat Treatment: Annealing, Stress Relieving, Case Hardening, Quenching and Tempering.

Types of Alloy Steel Grade B8/G8 Fasteners

Alloy Steel Grade B8/G8 Bolts

ASTM A193 Gr. B8 / A194 Gr. G8 Bolt

Alloy Steel Grade B8/G8 Nuts

ASTM A193 Gr. B8 / A194 Gr. G8 Nuts

Alloy Steel Grade B8/G8 Stud Bolts

ASTM A193 Gr. B8 / A194 Gr. G8 Stud Bolt

Alloy Steel Grade B8/G8 Washers

ASTM A193 Gr. B8 / A194 Gr. G8 Washer

Alloy Steel Grade B8/G8 Fasteners Chemical Composition

Element Carbon Manganese Phosphorus, max Sulfur, max Silicon Chromium Nickel Molybdenum
B8 0.08% max 2.00% max 0.045% 0.030% 1.00% max 18.0 - 20.0% 8.0 - 11.0% -

Mechanical Properties of Alloy Steel Gr B8 / G8 Fasteners

Grade Size Tensile ksi, min Yield, ksi, min Elong, %, min RA % min
B8 Class 1 All 75 30 30 50
B8 Class 2 Up to 3/4 125 100 12 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

The tensile strength of Alloy Steel Grade B8 fasteners can vary depending on the specific fastener type and size. However, as per ASTM A193/A193M standard, the typical minimum tensile strength for B8 fasteners is 75 ksi (515 MPa). It's important to consult the manufacturer or relevant engineering standards for precise tensile strength values for specific fastener sizes & applications.

Alloy Steel Grade B8 fasteners exhibit a minimum tensile strength of 75 ksi (515 MPa) as per ASTM A193/A193M standard. The strength of Grade B8 fasteners ensures their capability to withstand high loads and provides reliable fastening solutions in various industrial applications where high strength is required.

Alloy Steel Grade G8 fasteners find applications in industries that require high strength & resistance to corrosion. Common applications include structural and construction projects, automotive manufacturing, oil and gas equipment, power generation, & petrochemical processing.