STUD BOLTS ASTM A193 GRADE B7
Stud bolts are threaded rods used in Chemical, Oil and Petrochemical Industries for high pressure flange connections. Flanges are fastened together with the help of stud bolts and nuts. The nuts used in the tightening of flanges are generally of hexagon or heavy hexagon type depending upon the pressure and other piping system requirements. Flange connections are also fastened with traditional solutions like Hex Bolts. Hex bolts are very similar to stud bolts in terms of threading but have a forged hexagon head. However stud bolts are preferred over hex Bolt because during tightening and toque application, studs do not twist.
ASME B16.5 is primarily the dimensional standard for ASTM Stud bolts. This defines the Dimensional requirement primarily i.e. length and the diameter of stud Bolt to be used for the tightening of flanges.Whereas ASME B1.1 defines the threading requirements. Most commonly used thread form is the symmetrical V profile thread with 60 degree angle. ASTM standards define clearly every specific criteria starting from Material grade,Heat treatment,Mechanical & Chemical properties,Stamping,Inspection,acceptance and rejection requirements.The most common grade that we work with is ASTM A 193.We actively manufacture the following grade of stud bolts:
ASTM A193 Grade B7
₹ 50 / Piece Get Latest Price
| Material | Carbon Steel |
| Size | Upto 7 Inch |
| Fastener Type | Stud Bolt |
| Grade | ASTM A193 Grade B7 |
| Surface Finishing | bare metal finish but are often hot-dip galvanized, zinc plated, Xylan coated, PTFE coated |
Minimum order quantity: 1000 Piece
ASTM A193 Grade B7 bolts and threaded studs are manufactured from a chromium-molybdenum steel and are quenched and tempered (heat treated) to develop the desired mechanical properties (strength). Grade B7 is the most common grade of A193 bolts used in construction. B7 threaded studs and short, headed bolts are readily available in the marketplace. Grade B7 bolts are commonly used in pipe flange connections. These bolts are typically bought and sold in a plain, bare metal finish but are often hot-dip galvanized, zinc plated, Xylan coated, PTFE coated, or otherwise coated for corrosion resistance. Note that coated bolts may not be able to withstand the high temperatures that uncoated B7 bolts can be subjected to.
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min | HBW | HRC |
|---|---|---|---|---|---|---|---|
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 | 321 max | 35 max |
| 2-5/8 - 4 | 115 | 95 | 16 | 50 | |||
| 4-1/8 - 7 | 100 | 75 | 18 | 50 |
B7 Threaded Bar
₹ 100 / Piece Get Latest Price
| Material | Mild Steel |
| Size | Upto 7 Inch |
| Shape | Threaded Stud / Rod |
| Finishing | bare metal finish but are often hot-dip galvanized, zinc plated, Xylan coated, PTFE coated |
| Material Grade | ASTM A193 Grade B7 |
| Country of Origin | Made in India |
Minimum order quantity: 1000 Piece
ASTM A193 Grade B7 bolts and threaded studs are manufactured from a chromium-molybdenum steel and are quenched and tempered (heat treated) to develop the desired mechanical properties (strength). Grade B7 is the most common grade of A193 bolts used in construction. B7 threaded studs and short, headed bolts are readily available in the marketplace. Grade B7 bolts are commonly used in pipe flange connections. These bolts are typically bought and sold in a plain, bare metal finish but are often hot-dip galvanized, zinc plated, Xylan coated, PTFE coated, or otherwise coated for corrosion resistance. Note that coated bolts may not be able to withstand the high temperatures that uncoated B7 bolts can be subjected to.
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min | HBW | HRC |
|---|---|---|---|---|---|---|---|
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 | 321 max | 35 max |
| 2-5/8 - 4 | 115 | 95 | 16 | 50 | |||
| 4-1/8 - 7 | 100 | 75 | 18 | 50 |
GI Threaded Rod
₹ 80 / Kg Get Latest Price
| Diameter | 4 mm |
| Corrosion Resistance | yes |
| Material | Galvanised Iron |
| Country of Origin | Made in India |
ASTM A193 Grade B7 bolts and threaded studs are manufactured from a chromium-molybdenum steel and are quenched and tempered (heat treated) to develop the desired mechanical properties (strength). Grade B7 is the most common grade of A193 bolts used in construction. B7 threaded studs and short, headed bolts are readily available in the marketplace. Grade B7 bolts are commonly used in pipe flange connections. These bolts are typically bought and sold in a plain, bare metal finish but are often hot-dip galvanized, zinc plated, Xylan coated, PTFE coated, or otherwise coated for corrosion resistance. Note that coated bolts may not be able to withstand the high temperatures that uncoated B7 bolts can be subjected to.
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min | HBW | HRC |
|---|---|---|---|---|---|---|---|
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 | 321 max | 35 max |
| 2-5/8 - 4 | 115 | 95 | 16 | 50 | |||
| 4-1/8 - 7 | 100 | 75 | 18 | 50 |
Threaded Studs
₹ 80 / Piece Get Latest Price
| Material | Stainless Steel |
| Usage/Application | Industrial |
| Color | steel |
| Country of Origin | Made in India |
ASTM A193 Grade B7 bolts and threaded studs are manufactured from a chromium-molybdenum steel and are quenched and tempered (heat treated) to develop the desired mechanical properties (strength). Grade B7 is the most common grade of A193 bolts used in construction. B7 threaded studs and short, headed bolts are readily available in the marketplace. Grade B7 bolts are commonly used in pipe flange connections. These bolts are typically bought and sold in a plain, bare metal finish but are often hot-dip galvanized, zinc plated, Xylan coated, PTFE coated, or otherwise coated for corrosion resistance. Note that coated bolts may not be able to withstand the high temperatures that uncoated B7 bolts can be subjected to.
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min | HBW | HRC |
|---|---|---|---|---|---|---|---|
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 | 321 max | 35 max |
| 2-5/8 - 4 | 115 | 95 | 16 | 50 | |||
| 4-1/8 - 7 | 100 | 75 | 18 | 50 |
Contact Us
Dinesh Chaudhary (General Manager)
Excel Metal & Engg Industries
1st Floor, 18, 177/181, J T Building, 3rd Kumbharwada Lane, DR M G Mahimtura Marg
Girgaon, Mumbai - 400004, Maharashtra, India