ASTM A193 B8 Stud Bolts Manufacturer in India – Available Grades and Classes
Delta Fitt Inc. is a leading B8 Stud Bolts Manufacturer in India. B8 Stud Bolts are high-strength fasteners made from ASTM A193 Grade B8 stainless steel, which is equivalent to Type 304 stainless steel. These bolts are known for their excellent corrosion resistance, durability, and high-temperature strength, making them ideal for use in petrochemical, power generation, marine, and industrial applications. They are commonly used in flange connections, pressure vessels, piping systems, and structural assemblies where secure fastening is essential.
B8 Stud Bolts undergo a solution annealing process to enhance their mechanical properties, ensuring improved toughness and resistance to oxidation and chemical exposure. They are available in fully threaded, double-end, and customized lengths, making them suitable for various high-stress applications. To further enhance their durability, B8 Stud Bolts can be coated with passivation, PTFE, or electropolishing for additional corrosion protection.
Grades Table for ASTM A193 B8 Stud Bolts
| Standard | Grade | Class | Material Description |
|---|
| ASTM A193 | B8 | Class 1 | Austenitic Stainless Steel (304), Solution Annealed |
| ASTM A193 | B8 | Class 2 | Austenitic Stainless Steel (304), Strain Hardened |
| ASTM A193 | B8M | Class 1 | Austenitic Stainless Steel (316), Solution Annealed |
| ASTM A193 | B8M | Class 2 | Austenitic Stainless Steel (316), Strain Hardened |
| ASME SA193 | B8 | Class 1 / 2 | ASME Equivalent of ASTM A193 B8 Stainless Steel |
B8 stud bolts are high-strength fasteners manufactured from ASTM A193 Grade B8 material, which is an austenitic stainless steel (typically Type 304). They are widely used in high-temperature and corrosive environments such as chemical processing plants, refineries, and power generation industries. B8 stud bolts offer excellent resistance to corrosion and oxidation, good toughness, and reliable performance at elevated temperatures, generally up to about 800°F (427°C). They are commonly paired with ASTM A194 Grade 8 or 8M nuts and are available in various thread sizes and lengths to suit flange and pressure vessel applications where durability and cleanliness are critical.
B8 Stud Bolts – Approximate Weight Chart in KG
| Nominal Diameter (inch) | Weight per Meter (kg) | Weight per Foot (kg) |
|---|
| 1/2" | 1.27 | 0.39 |
| 5/8" | 1.98 | 0.60 |
| 3/4" | 2.85 | 0.87 |
| 7/8" | 3.88 | 1.18 |
| 1" | 5.10 | 1.55 |
| 1 1/8" | 6.55 | 2.00 |
| 1 1/4" | 8.15 | 2.48 |
| 1 3/8" | 9.90 | 3.02 |
| 1 1/2" | 11.80 | 3.60 |
| 1 3/4" | 16.00 | 4.88 |
| 2" | 20.50 | 6.25 |
B8 stud bolts are high-performance fasteners manufactured from ASTM A193 Grade B8 material, an austenitic stainless steel known for its excellent corrosion resistance and strength at elevated temperatures. These stud bolts are extensively used in industries such as oil & gas, petrochemicals, power plants, chemical processing, and marine applications. B8 stud bolts provide reliable clamping force, good ductility, and resistance to oxidation, making them ideal for flange connections, pressure vessels, and piping systems operating in harsh and corrosive environments.
As a trusted B8 stud bolts manufacturer and supplier, high-quality B8 stud bolts are produced in compliance with international standards to ensure durability, dimensional accuracy, and long service life. Available in a wide range of sizes, thread types, and custom lengths, these stud bolts meet the demanding requirements of critical industrial applications. With strict quality control and consistent supply capabilities, B8 stud bolts are widely supplied to both domestic and international markets.
Chemical Composition of ASTM A193 B8 Stud Bolts
| Element | B8 (SS 304) | B8M (SS 316) |
|---|
| Carbon (C) | Max 0.08% | Max 0.08% |
| Manganese (Mn) | Max 2.00% | Max 2.00% |
| Silicon (Si) | Max 1.00% | Max 1.00% |
| Chromium (Cr) | 18.00 – 20.00% | 16.00 – 18.00% |
| Nickel (Ni) | 8.00 – 11.00% | 10.00 – 14.00% |
| Molybdenum (Mo) | — | 2.00 – 3.00% |
Mechanical Properties of ASTM A193 B8 Stud Bolts
| Grade | Class | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|
| B8 | Class 1 | 515 | 205 | 30 |
| B8 | Class 2 | 690 | 450 | 20 |
| B8M | Class 1 | 515 | 205 | 30 |
| B8M | Class 2 | 690 | 450 | 20 |
Client Project Summary of B8 Stud Bolts Exporter in India
The client project consisted of the supply of high-quality ASTM A193 Grade B8 stud bolts to use in the critical industrial, structural, and engineering purposes. The entire B8 stud bolts were crafted out of high grade austenitic stainless steel which had high corrosion resistance, durability and high temperature operations. The production process was fully occupied with the international standards in order to provide high strength, dimension, and extended service life. The project was finished within the planned schedule and strict quality checks were done at all manufacturing and delivery levels.
The provided B8 stud bolts were completely in line with all the technical and performance specifications and offered strong and durable fastening solutions in various industrial fields. They were utilized in challenging conditions like piping systems, flange connections, heavy-duty assemblies, and other demanding conditions and conditions, and made sure that they were safe, and the structure remained intact at every site of installation.
Product Supplied Details
| Product Supplied | Quantity | Cities (India) |
|---|
| Stainless Steel B8 Stud Bolts for Industrial Use | 198 Pieces | Mumbai |
| High-Strength B8 Stud Bolts for Structural Applications | 264 Pieces | Pune |
| B8 Stud Bolts for Heavy Machinery Assemblies | 221 Pieces | Chennai |
| Corrosion-Resistant B8 Stud Bolts for Construction Projects | 176 Pieces | Ahmedabad |
