Ragnar Metals and Tubes is a leading B7 Stud and Nuts Manufacturer, Stockist and Exporter in India, delivering high-performance fastening solutions for global industries. Our ASTM A193 Grade B7 stud bolts and heavy hex nuts are widely used in critical applications where strength, durability, and reliability are essential.
We specialize in manufacturing premium quality B7 stud bolts and nuts using chromium-molybdenum alloy steel that ensures excellent tensile strength and resistance to high pressure and high temperature environments.
As a trusted B7 stud and nuts exporter, we supply to Middle East countries including UAE, Saudi Arabia, Qatar, Oman, Kuwait, and Bahrain, supporting oil & gas, petrochemical, power generation, and construction industries.
B7 Stud and Nuts refer to a high-strength fastening system made from ASTM A193 Grade B7 alloy steel studs combined with ASTM A194 Grade 2H heavy hex nuts.
B7 studs are fully threaded rods or double-end threaded bolts designed for high-pressure and high-temperature applications. When paired with heavy hex nuts, they provide a strong and secure bolting system.
These fasteners are widely used in refineries, offshore platforms, pipelines, and heavy engineering structures where failure is not an option.
As a leading manufacturer, we produce B7 stud bolts and nuts using advanced CNC threading machines and heat treatment facilities. Each product undergoes quenching and tempering to achieve high tensile strength and toughness.
Our manufacturing process ensures dimensional accuracy, thread precision, and superior mechanical properties suitable for critical industrial applications.
We also offer custom manufacturing for special sizes, coatings, and threading types based on project requirements.
As a reliable stockist, we maintain a large inventory of B7 stud bolts and heavy hex nuts in standard sizes and lengths. This ensures quick availability for urgent industrial and maintenance requirements.
Our ready stock supports EPC contractors, shutdown projects, and large-scale industrial installations where fast delivery is essential.
We are a globally recognized B7 stud and nuts exporter supplying to more than 50 countries. Our strongest export region is the Middle East due to high demand from oil & gas and petrochemical industries.
We provide complete export documentation including MTC certificates, third-party inspection reports, packing lists, and certificates of origin.
| Parameter | Details |
|---|---|
| Material | Chromium Molybdenum Alloy Steel |
| Standard | ASTM A193 Grade B7 |
| Nut Standard | ASTM A194 Grade 2H |
| Type | Stud Bolt with Heavy Hex Nuts |
| Size Range | M6 to M100 / 1/4” to 4” |
| Length | Custom Cut Length Available |
| Finish | Black, Zinc Plated, Hot Dip Galvanized |
| Standard | ASTM A193 / ASME SA193 |
| Element | % Composition |
|---|---|
| Carbon | 0.38 – 0.48 |
| Manganese | 0.60 – 1.00 |
| Chromium | 0.75 – 1.20 |
| Molybdenum | 0.15 – 0.25 |
| Silicon | 0.15 – 0.35 |
| Iron | Balance |
B7 Stud and Nuts are used in high-pressure and high-temperature applications such as oil & gas refineries, petrochemical plants, power generation units, offshore platforms, and heavy engineering industries.
They are manufactured from Chromium Molybdenum Alloy Steel as per ASTM A193 Grade B7 specification and paired with ASTM A194 Grade 2H heavy hex nuts.
Yes, we regularly export B7 Stud and Nuts to UAE, Saudi Arabia, Qatar, Oman, Kuwait, and Bahrain with full documentation and inspection certificates.
B7 stud bolts have a minimum tensile strength of 125 ksi (approximately 860 MPa), making them suitable for critical industrial applications.
Yes, we manufacture and supply B7 stud bolts and nuts in custom diameters, lengths, threading types, and coatings as per project requirements.
Yes, we provide Mill Test Certificates (MTC), third-party inspection reports (SGS, TUV, BV), and full traceability documents.
They are widely used in oil & gas, petrochemical, construction, marine, offshore, power plants, and heavy machinery industries.
