JS FITTING is a leading carbon steel RF flange manufacturer providing precision-engineered solutions to industries worldwide.
We provide superior durability and leak-free performance in oil & gas, chemical, and energy industries with ASTM A105-compliant flanges.
Performance-Engineered: Key Details Our carbon steel RF flanges are available in widths ranging from ½” to 24” and satisfy pressure ratings from 150# to 2500#.
ASTM, ASME, and ANSI-compliant, they perform well in high-temperature and high-pressure conditions.
Built for Demanding Industries Our flanges provide safety and efficiency in refinery pipelines and chemical processing plants.
Raised face (RF) finishes and threaded or weld-neck combinations are customizable.
Quality You Can Trust JS FITTING uses CNC machining and strict quality control.
ISO 9001 and API Q1 certifications demonstrate our dependability.
Customized Solutions for Every Project Fast turnaround and low pricing are our priorities for conventional and special orders.
Trustworthy methods to boost project success.
For over four decades, we’ve crafted steel pipe fittings that stand the test of time.
Our 35,000 m² facility blends heritage and modern technology to service industries globally.
Quality You Can Trust Worldwide All fittings, flanges, and pipes fulfill ISO 9001 and CE requirements.
Material performance in harsh circumstances, from offshore rigs to high-rise sites, is checked thoroughly.
Smarter, cleaner manufacturing Eco-friendly sandblasting and automated 100-meter painting lines improve accuracy and save waste.
Sustainability is ingrained in every phase.
Built for Large Projects Production of 30,000+ tons per year implies no order is too big.
Custom solutions scale well for local utilities and global energy companies.
Outperforming Expectations A global logistics crew keeps shipments on pace rain or shine.
Even last-minute bulk orders are delivered on time.
Durable and clever, our workshop steel connections power key infrastructure on six continents.

RF Flange Solutions JS FITTING manufactures precision-engineered carbon steel RF flanges for demanding industrial applications.
We follow ASME B16.5 standards to provide compatibility with worldwide pipe systems as a reputable carbon steel RF flange manufacturer.
We provide Class 150 to 2500 pressure flanges for oil & gas, chemical processing, and power production.
These durable flanges meet worldwide safety standards with ISO 9001 and PED certifications.
Our carbon steel RF flanges are leak-proof and reliable for high-temperature pipes and corrosive situations.
JS FITTING is a renowned carbon steel RF flange manufacturer with decades of technological competence for precision-oriented industries.
Dimensional flexibility and material traceability guarantee infrastructure integration.
Partner with a carbon steel RF flange manufacturer dedicated to downtime reduction and system efficiency.
Every flange has extensive documentation and timely technical assistance to meet project schedules.
Engineers and procurement teams worldwide use JS FITTING for its reasonable price and industrial-grade quality.
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