In the landscape of modern metallurgy, 347 Stainless Steel (UNS S34700) stands as a columbium-stabilized austenitic stainless steel. As premier 347 Stainless Steel pipe suppliers, we recognize that the addition of niobium allows these pipes to operate in the chromium carbide precipitation range (800-1500°F) without succumbing to intergranular corrosion.
Shaanxi Kerlimar Engineers Co., Ltd., established in 2003, has dedicated over two decades to mastering the complexities of high-performance alloy supply chains. Our expertise extends beyond mere distribution; we provide macro-level industrial solutions that ensure structural integrity in petrochemical, aerospace, and power generation sectors.
Adherence to ASTM A312, ASME SA312, and EN 10216-5 standards.
Specialized dimensions for seamless and welded configurations.
Coordinated supply chains across Asia, Europe, and the Americas.
Years of Expertise
Technical Patents
API/ASTM Compliance
Heat Resistance
Unlike standard 304 or 316 grades, 347 stainless steel is specifically engineered for environments where intermittent heating and cooling are frequent. The Information Gain here lies in understanding its creep strength. In the global energy transition, 347 pipes are becoming the backbone of carbon capture and storage (CCS) facilities and advanced biomass energy plants due to their superior resistance to oxidation.
Currently, the global demand for 347 stainless steel is surging in the Middle East's refining sector and North America's aerospace manufacturing. As a leading supplier, we observe a shift toward 347H (High Carbon) variants, which offer even higher creep resistance for boiler tubes and radiant superheaters. Our supply chain resilience ensures that even amidst global material shortages, our clients receive ISO-certified piping solutions on time.
We provide comprehensive localized support, ensuring all products meet regional regulatory frameworks such as PED (Pressure Equipment Directive) in Europe and ASME Section VIII in the US. Our quality assurance team performs rigorous testing, including:
| Chromium | 17-19% |
| Nickel | 9-13% |
| Niobium | 10 x C min |
| Iron | Balance |
Under the leadership of Mr. Ming SUN, a visionary environmentalist, Shaanxi Kerlimar Engineers Co., Ltd. has evolved from a traditional pipe supplier into a high-tech powerhouse. Our commitment to sustainability is reflected in our New Vertical Axis Wind Power research, aimed at solving energy bottlenecks globally.
Since 2019, we have secured over 40 patents, including international PCT filings. This technological mindset is applied directly to our steel business; we don't just sell pipes, we engineer future-proof infrastructure. Our participation in COP28 in Dubai highlights our global commitment to reducing the industrial carbon footprint through efficient material usage.
Used in rocket engine parts and exhaust manifolds where thermal stability is non-negotiable.
Ideal for catalytic cracking units and high-pressure steam pipes in petrochemical plants.
Future focus on Hydrogen transport systems where embrittlement resistance is critical.
By 2030, the "Smart Piping" era will integrate IoT sensors directly into 347 stainless steel networks to monitor wall thinning and corrosion in real-time. Shaanxi Kerlimar is already exploring nanostructured alloying techniques to further enhance the service life of pipes by 30%, drastically reducing lifecycle costs for global operators.
In December 2020, we won the national High-tech Enterprise certification. In June 2021, we were invited to participate in the China-Finland High Technology Match Conference. By August 2022, we participated in the 11th China Innovation and Entrepreneurship Competition and won the Excellence award.
We are currently completing 10KW-500KW series of small units before landing experiments, actively participating in "Thousands of Winds" actions. Our technology is characterized by efficiency, low cost, high reliability, and security. We aim to contribute to the global goal of controlling temperature rise below 1.5°C.
Contact us today for a technical consultation on your 347 Stainless Steel piping requirements and join us in building a sustainable industrial future.
Kerlimar
