What Advantages Can Galvanized High Tensile Double End Stud Bolt Bring To Pipeline Flange Projects?

Galvanized High Tensile Double End Stud Bolt adopts high-quality medium carbon steel as raw material, and the whole blank undergoes integral quenching and high temperature tempering heat treatment according to international heat treatment standards. After standardized processing, the minimum tensile strength of finished products reaches 830MPa, the maximum tensile strength can stabilize at 1040MPa, and the yield strength is controlled above 640MPa. This stable mechanical performance can resist alternating pressure and vibration generated by medium circulation inside medium and high-pressure pipelines, and effectively prevent the loosening, sliding wire and brittle fracture of flange joints in long-term continuous operation. The external thread of the product is formed by full-automatic thread rolling machine, the thread tooth profile is full and uniform, the matching gap between thread and nut is strictly controlled within 0.03mm, which greatly improves the overall locking tightness of pipeline flange assembly.

Diversified Anti-corrosion Surface Treatments Adapt To Complex Pipeline Working Conditions

Different pipeline projects located in coastal saline-alkali areas, chemical corrosive workshops and inland dry factories have completely different anti-rust standards for fasteners, and rich surface treatment solutions make Galvanized High Tensile Double End Stud Bolt adapt to almost all mainstream pipeline construction environments. The hot-dip galvanized surface of the product forms a compact zinc layer with thickness ranging from 60μm to 90μm, which can pass the 500-hour neutral salt spray continuous test without white rust or red rust corrosion. For clients with low budget, electro galvanizing and black oxide treatments are available; for pipelines with strong chemical corrosion, PTFE coating and Dacromet coating can be customized to enhance long-term anti-corrosion capacity. Ningbo Gangtong Zheli Fasteners Co., Ltd sorts out targeted surface treatment matching schemes for pipeline projects of different industries, helping engineering purchasers cut later maintenance and replacement costs of flange fasteners.

Complete Specification Coverage & Strict Multi-level Inspection Win Global Pipeline Engineering Clients

Galvanized High Tensile Double End Stud Bolt covers complete metric specifications from M6 to M64, and supports customized production of non-standard lengths according to pipeline design drawings provided by engineering buyers. All finished fasteners implement three independent inspection links before leaving the factory: raw material chemical composition detection, semi-finished thread precision measurement, and finished mechanical performance sampling test. Each batch of goods can provide official factory inspection reports containing tensile, yield and anti-corrosion test data for engineering acceptance. Ningbo Gangtong Zheli Fasteners Co., Ltd has stable long-term cooperative pipeline engineering clients covering more than 38 countries in Europe, Southeast Asia and the Middle East. Consistent reliable product quality has obtained continuous repeat orders from global pipeline construction purchasers for many years, and the product indexes fully conform to international industrial fastening standards without secondary modification for cross-border engineering installation.