Haihao Group Supplies ASTM A193 B7 Stud Bolts and ASTM A194 2H Nuts for Russia Project

Haihao Group has recently completed the production and shipment of a batch of ASTM A193 B7 stud bolts and ASTM A194 2H nuts for a customer in Russia. The order includes galvanized full thread stud bolts and matching heavy hex nuts in various inch sizes, manufactured according to international fastening standards for pressure equipment and pipeline applications.

The supplied fasteners are designed for flange connection systems where high strength, stable clamping force, and long-term reliability are required. With strict control of raw materials, dimensions, coating quality, and thread accuracy, Haihao Group provides reliable bolting solutions for oil & gas, petrochemical, power generation, and industrial pipeline projects.

Project Overview: ASTM A193 B7 Stud Bolts and A194 2H Nuts for Russia

For this shipment, Haihao Group supplied a complete set of flange fastening components, including:

• ASTM A193 Grade B7 full thread stud bolts
• ASTM A194 Grade 2H heavy hex nuts
• Hot-dip galvanized surface protection
• Various inch sizes and customized lengths

The combination of ASTM A193 B7 stud bolts and ASTM A194 2H nuts is widely used in high-pressure piping systems because the materials provide excellent mechanical strength and reliable performance under elevated temperature and pressure conditions.

The stud bolts were manufactured according to ASME B18.31.2, while the nuts complied with ASME B18.2.2 requirements, ensuring dimensional compatibility and proper assembly with industrial flange connections.

Product Details of This Shipment

Material Selection: ASTM A193 B7 and ASTM A194 2H Combination

The selection of suitable bolting materials is critical for flange connection safety. The ASTM A193 B7 stud bolts supplied by Haihao Group are manufactured from chromium-molybdenum alloy steel and are commonly selected for pressure vessel and piping applications requiring high tensile strength.

The matching ASTM A194 Grade 2H nuts are designed to provide proper thread engagement and load distribution with B7 studs. This combination is frequently specified for:

• Pressure vessel flange connections
• Oil and gas pipeline systems
• Petrochemical processing equipment
• Power plant piping
• High-pressure industrial applications

ASTM A193 B7 galvanized stud bolts and ASTM A194 2H nuts supplied by Haihao Group

Galvanized Coating for Enhanced Corrosion Resistance

All fasteners in this order were supplied with galvanized surface treatment. The zinc coating provides additional protection against atmospheric corrosion during transportation, storage, and service conditions.

For outdoor pipeline facilities and industrial environments, galvanized ASTM A193 B7 stud bolts help improve service durability while reducing maintenance requirements.

Haihao Group controls coating quality, thread condition, and surface appearance before shipment to ensure that every fastener meets customer expectations.

Quality Control During Manufacturing

To guarantee reliable performance, Haihao Group follows strict inspection procedures for each batch of fasteners.

The inspection process includes:

• Raw material verification
• Chemical composition checking
• Mechanical property testing
• Dimensional inspection
• Thread accuracy inspection
• Surface coating examination

For flange assembly applications, accurate thread machining and consistent dimensions are essential. Therefore, every batch of ASTM A193 B7 stud bolts is inspected before packing and delivery.

Haihao Group: Reliable Industrial Fastener Supplier

With extensive experience in pipeline components, Haihao Group supplies not only flanges and pipe fittings but also matching fastening products including stud bolts and nuts.

By providing complete connection solutions, Haihao Group helps customers simplify procurement and ensure compatibility between:

• Flanges
• Pipe fittings
• Bolting systems
• Pipeline accessories

This shipment of ASTM A193 B7 stud bolts and ASTM A194 2H nuts to Russia demonstrates Haihao Group’s ability to deliver customized fastening solutions according to international standards.

Contact Haihao Group for professional support on industrial bolts, nuts, flanges, and pipeline components for your next project.