Home > Stud Bolts > Stainless Steel 420 Stud Bolts
Manufacturers and exporters in the UAE (Dubai) and India provide precision Stainless Steel 420 Stud Bolts that comply with A193/A194 and ASME standards. These rough-forged and fully-threaded studs are used in flange bolted joints in refineries, petrochemical plants, and pressure systems. Suppliers maintain inventory in India and Dubai, allowing for worldwide export. SS 420 (a martensitic grade) bolts are recognized for their high hardness and wear resistance. The manufacturers ensure precise threading, high tensile integrity, and surface finish suitable for industrial fastening applications. Certified for quality, these bolts serve global industrial engineering and oil and gas sectors.
SS 420 stud bolts are martensitic stainless steel, usually containing about 12% to 14% chromium, a maximum of 0.15% carbon, and low nickel content. After quenching, they achieve high hardness (above Rockwell C 40), tensile strength ranges from 800 to 1000 MPa, and yield strength falls between 600 and 800 MPa. Elongation is modest, around 10% to 20%. They show good wear resistance and moderate corrosion resistance in mild environments. Heat treatment through quench and temper optimizes strength. These mechanical properties make SS 420 suitable for applications requiring hardness, load-bearing, and resistance to mild corrosion in bolted assemblies.
| Specifications | : | ASTM A /SA 193 / 194 |
| Dimensions | : | ASTM,DIN, BS,GB, IS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Stud Bolts Size | : | M02 to M33 |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 420 | 0.15 | 1.00 | 1.00 | 0.04 | 0.03 | 12.0-14.0 | – | – | – |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.8 g/cm3 | 1495 °C (2723 °F) | 690 MPa max | 414 MPa max | 15 % |
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After completion of the manufacturing process, our quality control team performs destructive and non-destructive tests on Stainless Steel 420 Stud bolts using the best equipment and advanced techniques. The tests are conducted at Harshita Stainless’ premises to determine the performance and reliability of bolts. The strength, durability, and corrosion resistance of stud bolts are further assessed during testing. Post-testing, these stud bolts will be packed as per the required specifications along with high-quality packaging for safe delivery. After this, the products are delivered based on a predefined time frame to have prompt and on-time service delivery. All the required documentation is presented to the customer upon delivery.
SS 420 stud bolts are commonly used in industrial flange connections, valve assemblies, pipeline joints, and structural anchors where hardness and strength are essential. They find applications in petrochemical, oil and gas refineries, power plants, and water treatment systems. Due to their high hardness, they resist galling under torque and maintain seal integrity during cyclic loading. In manufacturing equipment, they serve as heavy-duty fasteners in pressurized or high-wear settings. While they offer moderate corrosion resistance, SS 420 bolts are often paired with coatings or used in less aggressive environments. Suppliers in Dubai and India provide these in various thread lengths and diameters.
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