Home » Mechanical Parts & Spares » Stainless Steel Hex Nut » High Tensile Steel ASTM A194 Grade 7 Heavy Hex Nut 7/8""
High Tensile Steel ASTM A194 Grade 7 Heavy Hex Nut 7/8""
₹ 250 Get Latest Price
Product Specifications
| Material | High Tensile Steel |
| ASTM | ASTM A194 GR. L7 |
| Availability | In Stock |
| Corrosion Resistance | Black Coating |
| Country of Origin | Made in India |
| Grade | Grade L7 |
| Nominal Nut Diameter | M22 (22 mm) |
| Thread pitch | UNC |
GST No - 27AARCA3096L1Z0 | Member since 2026
G6-A, Unit No. 10, Sagar Industrial Estate, Dhumal Nagar Waliv, District Thane Vasai - 401208, Maharashtra, India
High Tensile Steel ASTM A194 Grade 7 Heavy Hex Nut 7/8"" Read More...
Product Details
🔹 ASTM A194 Grade 7 Heavy Hex Nuts – Overview Standard: ASTM A194 covers carbon, alloy, and stainless steel nuts for high-pressure and high-temperature applications. Grade 7: Alloy steel, quenched and tempered, designed for low-temperature service. Shape: Heavy Hex Nuts (larger and thicker than standard hex nuts for higher strength). 🔹 Dimensional Standards Conforms to ASME B18.2.2 → Heavy Hex Nut dimensions. Available in sizes from ¼″ to 4″ (M6 to M100). Threads: UNC, UNF, or Metric (coarse & fine). Height: Typically 0.875 × nominal diameter (heavier than standard hex nuts). Chamfered ends and flat bearing surface as per ASTM/ASME requirements. 🔹 Difference Table – ASTM A194 Grades (2H vs 7 vs 4) PropertyGrade 2HGrade 7Grade 4 Material Medium Carbon Steel Alloy Steel (Cr-Mo) Alloy Steel (Mo-Cr-V) Heat Treatment Quenched & Tempered Quenched & Tempered Quenched & Tempered Tensile Strength ≥ 100 ksi (690 MPa) ≥ 125 ksi (860 MPa) ≥ 150 ksi (1035 MPa) Yield Strength ≥ 75 ksi (515 MPa) ≥ 105 ksi (725 MPa) ≥ 130 ksi (895 MPa) Temperature Suitability General high temp Low-temperature service (impact tested at –101°C) High strength, elevated service Charpy Impact Test Not required Required Required Applications Boilers, pipelines Cryogenic & low-temp flanges Petrochemical, turbine equipment 🔹 Applications of ASTM A194 Grade 7 Heavy Hex Nuts Cryogenic & Low-Temperature Pipelines → LNG plants, refrigeration, low-temperature storage tanks. Petrochemical & Refinery Equipment → Pressure vessels, flanges, and valves in critical conditions. Power Plants & Offshore Projects → Turbines, reactors, subsea equipment where impact toughness is critical. 🔹 Hashtags / SEO Keywords #ASTMA194, #Grade7Nuts, #HeavyHexNuts, #AlloySteelFasteners, #CryogenicFasteners, #IndustrialFasteners, #AanurajFasteners, #HighStrengthNuts, #PetrochemicalFasteners, #BoltingSolutions
G6-A, Unit No. 10, Sagar Industrial Estate, Dhumal Nagar Waliv, District Thane Vasai - 401208, Maharashtra, India
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