Stainless Steel 321H Fasteners
Sankalp Alloys Overseas is one of the distinguished manufacturers, suppliers, stockists, and exporters of high-quality Stainless Steel 321H Fasteners. The fasteners are developed to hold together two things by engaging threads from one component to the other so that they firmly and reliably stay connected. Developed from superior grade Stainless Steel 321H alloy, these fasteners extend good resistance to corrosion, high-temperature strength, and durability, thereby proving applicable for various industrial purposes.
Stainless Steel 321H Bolts comprise metal alloys containing at least 10% chromium content. The contents of chromium and nickel are the two elements that give these fasteners more resistance to corrosion compared with other grades of alloys. The designation "H" stands for "High." It means high carbon content, and it is what makes the bolts stronger and resistant to wear impacts found in other bolting grades. It is the higher carbon content that lends improved mechanical properties that allow bolts to sustain heavy loads under heinous conditions.
The main benefit of using Grade 321H Stainless Steel Bolts is that they exhibit excellent resistance to corrosion. It's because the content level of chromium and nickel in these bolts is high enough to withstand rusting in damp conditions, saltwater, and other liquids and substances that cause corrosion. This makes the bolts quite useful for applications in marine environments and those that require a great deal of resistance against corrosion. Moreover, high values of tensile strength and ductility for such fasteners guarantee that they will safely tolerate large loads without breaking and easily deforming.
Stainless Steel 321H Fasteners Manufacturers in Mumbai, Stainless Steel 321H Fasteners Suppliers in Mumbai, Stainless Steel 321H Fasteners Stockists in Mumbai, Stainless Steel 321H Fasteners Exporters in Mumbai
Stockist of 321 SS Stud Bolt Materials in India, Check 321 Stainless Steel Hex Nuts Specification Chart
| Parameter |
Details |
| Specification |
ASTM A193 / A193, ASME SA193 / SA194 |
| Standard |
DIN, ASTM, BS and all International Standards |
| Length |
3 mm to 200 mm |
| Nuts Size |
M3 - M56 | 3/6" to 2" | Custom Sizes |
| Bolt/Screw Size |
M3 - M56 | 3/6" to 2" | Custom Sizes |
| Machine Screws Size |
M1.6 - M12 |
| Washers Size |
M3 - M56 | 3/6" to 2" | Custom Sizes |
| Grade |
SS 321 |
| Types |
Nut, Hex Coupling Nut, Hex Nut, Square Nut, Hex Domed Cap Nuts, Hex Head Bolts, Stud Bolts, Socket Hexagon Head Screw, Pan Head Screw, Socket Head Cap Screw, Wing Screw, T-Head Bolts, Foundation Bolts, Screw, Studs, Socket Screw, Hex Set Screw, Cap Screw, Machine Screw, Wing Screw, Spring Washers, Washers, Studs, Marine Anchors, Anchors, Hexagon Nut, U-Bolts, Anchor Bolt, Mushroom Head Square Neck Bolts, J Bolts, Eye Bolt, Structural Bolts, Bolts, Nuts, Sockets, Screws, Allen Cap screw |
| Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
| 321 |
0.080 max |
2 max |
1 max |
0.045 max |
0.030 max |
19 min |
- |
13 min |
- |
| Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness Rockwell B (HR B) max |
Hardness Brinell (HB) max |
| 321 |
515 |
205 |
40 |
95 |
217 |
| Grade |
UNS No |
Old British |
Euronorm |
Swedish SS |
Japanese JIS |
BS |
En |
| 321 |
S32100 |
321S31 |
58B, 58C |
1.4541 X6CrNiTi18-10 |
2337 |
SUS 321 |
- |
| Grade |
Density (kg/m³) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (μm/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-100 °C (J/kg.K) |
Electrical Resistivity (nΩ.m) |
| 0-100 °C |
0-315 °C |
0-538 °C |
at 100 °C |
at 500 °C |
| 321 |
8027 |
193 |
16.6 |
17.2 |
18.6 |
16.1 |
22.2 |
500 |
720 |
| Nut Size (mm) |
Diameter* (mm) |
Height (mm) |
Hex Nut |
Jam Nut |
Nylock Nut |
| 2 | 4 | 1.6 | 1.2 | - | - |
| 2.5 | 5 | 2 | 1.6 | - | - |
| 3 | 5.5 | 2.4 | 1.8 | 4 | - |
| 4 | 7 | 3.2 | 2.2 | 5 | - |
| 5 | 8 | 4 | 2.7 | 5 | - |
| 6 | 10 | 5 | 3.2 | 6 | - |
| 7 | 11 | 5.5 | 3.5 | - | - |
| 8 | 13 | 6.5 | 4 | 8 | - |
| 10 | 17 | 8 | 5 | 10 | - |
| 12 | 19 | 10 | 6 | 12 | - |
| 14 | 22 | 11 | 7 | 14 | - |
| 16 | 24 | 13 | 8 | 16 | - |
| 18 | 27 | 15 | 9 | 18.5 | - |
| 20 | 30 | 16 | 10 | 20 | - |
* This is the diameter across the flats. It is also the size of wrench to use.
| Eastern Europe |
Asia |
North America |
Western Europe |
Mid East/Africa |
| Australia |
Central/South |
UAE |
America |
Portugal |
| Spain |
Indonesia |
Italy |
Angola |
Poland |
| Brazil |
Sri Lanka |
Russia |
China |
Singapore |
| Oman |
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USA |
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| Thailand |
Canada |
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| Mumbai |
Ahmedabad |
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Pune |
| Delhi |
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| Bangalore |
Kolkata |
Siliguri |
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Indore |
| Hyderabad |
Surat |
Nashik |
Cochin |
Thane |
| Faridabad |
Rajkot |
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Bhavnagar |
Ranchi |