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Gayatri Tubes is the leading stockiest manufacturer, supplier of the SS 321 321H Fasteners. We are also the whole seller of all the stainless steel. SS 321 321H Fasteners is made with the composition of many chemicals and metals like carbon, nickel, molybdenum, titanium, sulfur, silicon, magnesium, chromium, nitrate and phosphorus. SS 321 321H Fastener has ASTM A193 / A194, ASME SA 193 / SA 194. All these fittings have the dimension of DIN, BS, and all the international standards. These fittings are made in length 3-200 mm. It’s also a density of 8.0 g/cm3 and the melting point of 1454 degrees Celsius. These fittings have the tensile strength of Psi – 75000, Mpa – 515 and elongation of 35% with hardness up to 217 Brinell. It is available in two sizes like MO2 to M33. These products also have a precipitation range of 800-1500 degrees Celsius.
SS 321 321H Fasteners are applicable and used in pharmaceutical, gas processing, heat exchangers, condensers, pulp and paper factories, petrochemical and petroleum industry, power generation, and off-shore oil drilling companies many more. It is also very useful in marine environments, thermal plants, food processing factories. Also, it is used in heat furnaces, coal refineries, aerospace, piston, and many more. SS 321 321H Fasteners is generally low carbon grade bolts to decrease the chromium level in the structure. SS 321H Fasteners has the maximum non-magnetic properties with depleting the stress corrosion cracking in hydrocarbon. These fittings are generally used to joint ant two products. These fittings are generally useful in non-sensitive corrosion with the heating of the carbide range of 425-850 degrees Celsius. All these products are used in weak organic acids at modest temperatures.
All the products are verified and well tested by many tests like flaring, hardness, pitting resistance, macro, flattening, and many more. In addition, many certificates like the fumigation certificate verify SS 321 321H Fasteners, heat treatment charts, guarantee letters, raw material test reports, NABL approved lab test reports and many more.
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
| Specifications | ASTM F593, F1554 / ASME SF593, F594, F1554 |
| Standard | DIN, ASTM, BS and all International Standards |
| Nuts Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Bolt / Screw Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Washers Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Machine Screws Size | M1.6 - M12 |
| Self Tapping Screw Size | No.2 - No. 14 |
| Length | 3 mm to 200 mm |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 - 19.00 | 0.10 max | 9.00 - 12.00 | 5(C+N) – 0.70 max |
| SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 - 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
