Jinay Metals stands out as a reliable manufacturer and supplier based in Dubai, UAE, celebrated for its top-notch Stainless Steel 321 / 321H Bolts that are designed for both durability and performance. With a keen emphasis on precision manufacturing and rigorous quality control, this company delivers bolts that truly shine in high-temperature and corrosive settings. Their products are a go-to choice across various industries, thanks to their dependability, precise dimensions, and remarkable resistance to oxidation. Jinay Metals skillfully blends cutting-edge technology, industry know-how, and a customer-focused mindset to provide Stainless Steel 321 / 321H Bolts that align with global standards and cater to a broad spectrum of industrial needs.
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What is Stainless Steel 321 / 321H Bolts?
These Stainless Steel 321 / 321H Bolts are crafted from titanium-stabilized austenitic stainless steel, which includes chromium, nickel, and a carefully controlled amount of carbon. The 321 grade is known for its impressive resistance to intergranular corrosion, while the 321H variant boasts enhanced strength at high temperatures due to its elevated carbon content. These bolts are characterized by outstanding mechanical properties, such as high tensile and yield strength, good creep resistance, and exceptional durability under thermal stress. Their stable structure guarantees reliable performance in high-temperature environments, making them perfect for challenging industrial applications.
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Stainless Steel 321 / 321H Bolts Specification
| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
Chemical Compositions of Stainless Steel 321 / 321H Bolts
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| 347 | min. | – | – | – | – | – | 17.0 | 2.00 | 9.0 | – |
| max. | 0.08 | 2.0 | 1.00 | 0.045 | 0.030 | 20.0 | 3.00 | 13.0 | – |
Stainless Steel 321 / 321H Bolts Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness |
| Rockwell B (HR B) max | Brinell (HB) max |
| 347 | 515 | 205 | 40 | 95 | 201 |
Stainless Steel 321 / 321H Bolts Types
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Stainless Steel 321 / 321H Bolts Uses
You’ll find Stainless Steel 321 / 321H Bolts being utilized across industries that face high heat and corrosive conditions. They’re particularly well-suited for use in petrochemical plants, power generation facilities, refineries, and chemical processing systems where resistance to oxidation and thermal stress is crucial. Additionally, these bolts are commonly found in exhaust systems, furnace components, heat exchangers, and aerospace equipment, thanks to their stability against carbide precipitation. With their impressive strength, corrosion resistance, and long-lasting service life, they are ideal for both structural and high-temperature fastening needs in critical industrial operations.
