Import B7 Studs — Buy in Bulk from Supplier in India

Hitesh Metal manufactures ASTM A193 B7 stud bolts from AISI 4140 alloy steel at their Mumbai facility. Their B7 studs are offered in diameters ranging from 1/5 mm to 5 mm, with custom sizing available on request. The studs carry multiple surface finish options including black oxide, plain, hot dip galvanized, zinc plated, cadmium plated, and Xylan coating. These fasteners are designed for high-temperature, high-pressure service in pressure vessels, valves, flanges, and fittings. The business maintains ready stock of standard sizes and accepts enquiries at [email protected] or +91 9867071980.

The AISI 4140 material chemistry specifies carbon at 0.38-0.48%, manganese at 0.75-1.00%, chromium at 0.80-1.10%, and molybdenum at 0.15-0.25%, with controlled phosphorus (0.035% max) and sulfur (0.040% max). This chrome-molybdenum composition delivers the hardenability and creep resistance required by ASTM A193 Grade B7. Silicon content of 0.15-0.35% supports deoxidation during melt. In typical industry practice, B7 studs are quenched and tempered to achieve a minimum tensile strength of 125 ksi and yield strength of 105 ksi at room temperature, though buyers should request certified mechanical test reports to confirm lot-specific values.

Application scope covers petrochemical, power generation, and process piping where ASTM A193 B7 bolting is specified for flanged connections. The threaded stud format allows two nut engagement points, preferred over single-end bolts in heat exchanger and vessel closures. Buyers in Gulf, Southeast Asian, and African markets represent the main export destinations from this Mumbai-based supplier. Coating selection depends on service environment: galvanized or cadmium for atmospheric corrosion, Xylan for chemical resistance and galling prevention.

Hitesh Metal operates from a 1st floor office at Plot No. 59/61, 4th Kumbharwada, 1st Pathan Street, Mumbai 400004, Maharashtra, India. The supplier holds a harbor trust tier on the platform, with a published response rate of 0.00% and no recorded average response time. The listing does not disclose factory ownership, production capacity, employee count, or annual turnover. No third-party certifications are stated on the profile.

The business model appears centred on stockholding and custom manufacture of ASTM A193 B7 studs and associated fasteners, with export and domestic supply. The contact channels provided are a Mumbai landline mobile number and a Yahoo email address. Buyers should verify the supplier's manufacturing credentials, quality system, and inspection capabilities directly before placing orders, as these details are absent from the public listing.