Ananka Group is a leading ASTM A194 Bolt & Nut Manufacturer in India, producing a wide range of ASTM A194 Grade 8M Fasteners in various sizes, grades, and scales.
ASTM A194 Grade 8M covers heavy hex nuts made from modified austenitic stainless steel, usually Type 316 or 316L, for high-pressure, high-temperature applications. These nuts are used when higher resistance to corrosion than is available under standard specifications is required.
The addition of molybdenum in the alloy helps it resist pitting and crevice corrosion, especially in chloride-exposed or chemically corrosive environments. With the help of this austenitic nature, these fasteners can operate reliably at both cryogenic and elevated temperature ranges.
Ananka Group is a trusted manufacturer of these fasteners. Nuts manufactured under this specification are an excellent choice for the most demanding environments. They offer remarkable versatility, perfectly complementing high-strength stainless steel bolts, including ASTM A193 Grades B8M and B8M Class 2, making them the best form of securing connections in critical industrial projects.
ASTM A194 Grade 8M Fasteners provide excellent mechanical strength and toughness for reliable performance at high pressure and stress. The strategic addition of molybdenum to the stainless steel matrix makes it extraordinarily resistant to corrosive environments, specifically in marine atmospheres, as well as in chloride and acidic conditions. Because they maintain their mechanical properties at elevated temperatures, they find frequent applications in pressure vessels and flanges under extreme conditions.
| Element | Percentage |
|---|---|
| Carbon (C) | 0.080 max |
| Manganese (Mn) | 2.000 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Silicon (Si) | 1.000 max |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.00 – 3.00 |
| Grade & Type | Brinell Hardness (HBW) | Rockwell Hardness (C) | Rockwell Hardness (B) |
|---|---|---|---|
| Grade 8M | 126 - 300 | 32 max | 60 min |
LC (Letter of Credit), TT (Telegraphic Transfer or Wire Transfer), Cheque and others.
ASTM A194 Grade 8M Fasteners are packaged with caution and safety so they reach our client's as good as he would expect. Packaging Charges Extra.
Mumbai or Kalamboli ports in the Maharashtra state of India.
18% GST