ASTM A193 Gr.B7 Stud Bolts with A194 Gr.2H Nuts: High-Strength Fasteners for Industrial Applications

Haihao Group recently completed an order for a long-term client in Côte d’Ivoire, supplying a range of ASTM A193 Gr.B7 stud bolts with A194 Gr.2H heavy hex nuts and washers. The fasteners were hot-dip galvanized (HDG) to enhance corrosion resistance, making them suitable for pipeline and structural applications.

The client required full-threaded stud bolts with two heavy-duty nuts and washers, ensuring strong and secure connections for high-pressure pipeline installations.

What Are ASTM A193 Gr.B7 Stud Bolts?

ASTM A193 Gr.B7 stud bolts are high-strength alloy steel fasteners commonly used in high-pressure and high-temperature environments. These bolts are manufactured from quenched and tempered chromium-molybdenum steel, providing exceptional tensile strength, durability, and heat resistance.

Key Properties of A193 Gr.B7 Stud Bolts

Tensile Strength: Minimum 125 ksi (860 MPa)

Yield Strength: Minimum 105 ksi (725 MPa)

Hardness: Rockwell C35 maximum

Operating Temperature: Suitable for use up to 450°C (840°F)

Corrosion Protection: Hot-dip galvanization (HDG) provides an extra layer of rust and corrosion resistance, ideal for outdoor and marine environments.

A194 Gr.2H Heavy Hex Nuts & Washers: Perfect for High-Strength Bolting

Along with A193 Gr.B7 bolts, the Côte d’Ivoire client also ordered A194 Gr.2H heavy hex nuts, which are specifically designed to complement high-strength fasteners.

High Hardness & Load Capacity: Made from carbon steel, heat-treated to increase hardness and strength.

Heavy Hex Design: Provides a larger bearing surface, improving load distribution and preventing loosening under heavy loads.

Washer Compatibility: Flat washers are used to ensure a secure and even load distribution on the bolted joints.

Applications of A193 B7 Stud Bolts & A194 2H Nuts

Oil & Gas Pipelines: Secure pipeline flanges and connections in high-pressure, high-temperature environments.

Petrochemical & Power Plants: Used in heat exchangers, reactors, and steam turbines.

Structural Engineering: Provides strong bolted connections for steel structures and industrial supports.

Marine & Offshore Projects: Hot-dip galvanized bolts offer superior corrosion resistance in coastal and offshore environments.

Why Choose Haihao Group for High-Strength Fasteners?

Certified Quality: Our A193 Gr.B7 stud bolts and A194 Gr.2H nuts comply with ASME, ASTM, and ISO standards.

Precision Manufacturing: Strict thread tolerance, material testing, and heat treatment ensure durability.

Custom Coatings & Packaging: Options for hot-dip galvanization, PTFE coating, and custom packaging.

Fast Global Delivery: Efficient shipping solutions to meet urgent project timelines.

Looking for high-strength A193 Gr.B7 stud bolts with A194 2H nuts and washers for your industrial projects? Contact Haihao Group today for expert solutions! Email:sales@haihaogroup.com