carbon steel lap flange manufacturer

Reliable Steel Solutions Since 1983 JS

FITTINGS has made quality steel pipe fittings for global industries for over 40 years. Our 35,000 m² facility serves oil & gas, shipbuilding, and construction sectors with a blend of traditional and modern technology.

Our expertise includes 42 years of specialized manufacturing experience, an annual production capacity of over 30,000 tons, and compliance with ASTM, EN, and GOST-R regulations.

Quality for Global Demands ISO 9001, CE, PETROBRAS-certified operations - 12-stage quality checks for industrial reliability Automatic painting for eco-friendly manufacture Smart Manufacturing for Faster Delivery Our 100-meter automated coating lines provide homogeneous protection, while our advanced sandblasting technology reduces environmental impact.

Dedicated logistics team efficiently processes bulk orders Built for Big Projects - 4 specialized lines produce 30,096+ tons annually Customized solutions for complicated engineering Provide consistent supply chain management for deadline-sensitive operations Every fitting is carefully calibrated to withstand intense pressure and corrosion for long-term performance in critical infrastructure projects globally.

​​

​

Precision Carbon Steel Lap Flanges for

Demanding Industries With ASTM-certified performance solutions, JS Fitting is a top carbon steel lap flange manufacturer.

High-quality materials and precision machining make our lap joints leak-proof in oil, gas, and petrochemical systems.

Why Use Our Flanges?

In severe conditions, corrosion-resistant coatings last longer.

Pressure up to 2,500 PSI, temperature tolerance -20°F to 850°F.

1/2" to 60" custom sizing for unusual pipeline systems.

Quality assurance: 3D scanning, hydrostatic testing, and material traceability.

Our adaptable flanges reduce downtime and ease maintenance.

We customize pressure, alignment, and space arrangements for replacing aged components or scaling new projects.

Ultrasonic testing and surface finish analysis ensure international standards compliance on every flange.

JS Fitting provides industrial-grade connections with 15+ years of metallurgical experience for engineers and procurement teams prioritizing durability without expense.

A flange that can withstand your harshest operational obstacles ensures reliable performance.