Based in Mumbai, India, Harsh Metalloys is a reputable producer and supplier of premium stainless steel 309 bolts. Our speciality is providing precisely engineered fastening solutions that are made to function dependably in corrosive and high-temperature environments. Using high-quality raw materials and sophisticated manufacturing techniques, our SS 309 Bolts are made to last and meet international standards. With a strong focus on quality and client satisfaction, Harsh Metalloys provides reliable products that endure harsh operating conditions and have a long service life to a variety of industries, including petrochemical, power generation, refineries, and furnace manufacturing.
At high temperatures, the 22–24% chromium and 12–15% nickel content of stainless steel 309 bolts offers exceptional resistance to oxidation and corrosion. Up to 1000°C, they retain their structural integrity. These bolts have an elongation of about 40%, a yield strength of 205 MPa, and a tensile strength of about 550 MPa. Even after extended exposure to heat, the alloy’s chemical makeup guarantees exceptional mechanical performance and thermal stability. Because of this, SS 309 Bolts are ideal for high-temperature applications where resistance to creep, thermal fatigue, and scaling is crucial.
|
Material |
Specification |
Standards |
Size |
Length |
|
Stainless Steel 309 Bolts |
ASTM, ASME and API |
ASTM B 193 / ASME SB 193 |
M02 to M30 |
3 mm To 200 mm |
| Element | SS 309 |
| Tensile Strength (MPa) min | 480 |
| Yield Strength 0.2% Proof (MPa) min | 275 |
| Elongation (% in 50mm) min | 16 |
| Rockwell B (HR B) max Hardness | 95 |
| Brinell (HB) max Hardness | 201 |
| Element | SS 309 |
| Ni | 0.75 |
| C | 0.15 |
| Mn | 1.00 max |
| P | 0.04 max |
| S | 0.03 max |
| Si | 1.00 max |
| Cr | 11.5 – 13.5 |
| Mo | – |
| N | – |
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Stainless Steel 309 Bolts are fasteners with a high heat resistance that have good resistance to oxidation. They are perfect for severe environments and provide strength and reliability in mechanical and thermal conditions.
Stainless Steel 309 Bolts are Fasteners with a high heat resistance that have good resistance to oxidation. They are perfect for severe environments and provide strength and reliability in mechanical and thermal conditions.
Custom Stainless Steel 309 Hex Bolt is a high heat resistant fastener in the shape of a square head with a specific shape, making it strong and reliable for severe heat and difficult areas.
The stainless steel 309 expansion anchor bolt is high temperature fastening and is made use of when fixing concrete or masonry construction. When tight clamped the same expands on the hole. Ensures perfect gripping.
The stainless steel 309 hex flange head bolt offers a hex-head feature with built-in flanges. It thus spreads the load with more weights, providing increased weight distribution and good heat resistance for overheating applications.
Stainless Steel 309 Full Threaded Bolts have full threads along their length, providing consistent clamping force and resistance to heat. They are perfect for high-temperature applications where durability and reliable performance are expected.
Stainless steel 309 bolts are frequently utilised in corrosive and high-temperature service environments. Securing parts in heat exchangers, boilers, exhaust systems, and furnaces are typical uses. Because of their dependability in conditions involving extreme heat and chemical exposure, these bolts are essential to sectors like petrochemical, thermal processing, power generation, and oil and gas. They are also utilised in flue gas systems, kiln linings, and combustion chambers. The preferred option for fastening in structural and mechanical assemblies, their resistance to thermal deformation and scaling guarantees long-lasting performance in high-demand, fast-paced industrial operations.
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