Forging at a high temperature, also known as hot forging, is a manufacturing process that involves heating metal to a high temperature before shaping it with dies, hammers, or presses. Fasteners are mechanical components that are used to join two or more parts together, and hot-forged fasteners are those that are made using the hot forging process.
There are several advantages to using hot forged fasteners. They have excellent dimensional accuracy and consistent quality, as the hot forging process allows for precise control over the shape and size of the finished product. They also have a higher fatigue strength and are less prone to corrosion and wear than other fasteners.
Overall, hot-forged fasteners are a reliable and durable choice for many applications requiring strong and reliable joint connections.
There are several steps involved in the hot forging process. First, the metal is heated to a temperature that is suitable for forging. This temperature depends on the type of metal being used and can range from around 1,100°C (2,000°F) for aluminium to over 1,300°C (2,400°F) for steel.
Next, the hot metal is placed into a die or mold shaped in the finished fastener's desired form. After that, the metal is shaped into its final form by being pounded or pressed using a hammer or press respectively.
After the hot forging process is complete, the fasteners may be subject to additional processing, such as heat treatment or surface finishing, to improve their properties or appearance.
Hot forged fasteners are used in a variety of applications, including the construction, automotive, and aerospace industries. They are also less prone to corrosion and wear than other fasteners, making them a reliable choice for use in harsh environments.
| Standard | IS, ANSI, ASTM DIN, ISO, JIS, GB, ASME, BS, UNI and all International Standards |
|---|---|
| Threads: | BSF, UNF METRIC, UNC, BSW or as required |
| Standard | ANSI – American National Standards Institute
DIN:DIN 933, DIN 931, DIN 970, DIN 934 UTS – Unified Thread Standard : UNF, NPT, NPTF, UNS, UNC, UNEF ISO – International Organization for Standardization ISO 4033, : ISO 4032, JIS standards |
| Fasteners/ Bolts Size | M10, M4, M16, M36 M2.5, M6, M30, M12, M8, M14, M2, M3, M20, M24, M5 to M160 |
| Length | 3 mm to 200 mm |
| Head drive: | Phillips, Slotted, Phillips/Slot, Six-Lobe etc |
| Test Certificate | as per EN 10204 / 3.1 Manufacturer Test Certificate |
| Finishing | Zinc white, (yellow, black, blue), black oxide,
Dacroment, Geometry, plated zinc-nickel, anodizing, nickel plated, Stainless steel: Passivated Self-Colour, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Sherardized, Stainless Steel, some special one like DACROMET and Mechanically Applied coating |
| raw materials of Source | JSPL, Usha Martin, Tata Steel, Mukund Steel, RINL, Dhamm Steel etc. |
| Form | Square, Hex, Threading as per Gauge, Round Etc. |
| Process of Production | M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element |
| Surface Coating |
|
| Packing | IN BULK: pallet, canton, carton / Small Boxs / pallet or customer request |
| Diameter | Length (mm) | |
|---|---|---|
| Cold Forged | Hot Forged | |
| M04 | 6 to 40 | —- |
| M05 | 8 to 75 | —- |
| M06 | 8 to 100 | —- |
| M08 | 10 to 100 | —- |
| M10 | 15 to 300 | 25 to 300 |
| M12 | 20 to 300 | 35 to 400 |
| M14 | 25 to 300 | 40 to 400 |
| M16 | 25 to 300 | 40 to 3000 |
| M18 | 25 to 300 | 50 to 3000 |
| M20 | 30 to 300 | 50 to 3000 |
| M22 | 30 to 300 | 60 to 3000 |
| M24 | 40 to 300 | 60 to 3000 |
| M27 | 50 to 300 | 60 to 3000 |
| M30 | 60 to 300 | 60 to 3000 |
| M33 | —- | 70 to 1500 |
| M36 | —- | 80 to 1500 |
| M39 | —- | 100 to 1500 |
| M42 | —- | 100 to 1500 |
| M45 | —- | 100 to 1500 |
| M48 | —- | 100 to 1500 |
| M52 | —- | 100 to 1500 |
| M56 | 100 to 1500 | |
| M60 | —- | 100 to 1500 |
| M64 | —- | 100 to 1500 |
| M72 | —- | 100 to 1500 |
| M80 | —- | 100 to 1500 |
