Select industrial configurations manufactured in strict accordance with ASTM, ASME, EN, and JIS standards.
Established in 2003: An Industry Leader Driven by Sustainable Engineering
Shaanxi Kerlimar Engineers Co., Ltd. has long been engaged in international trade business, mainly a variety of pipes, carbon steel, alloy steel, stainless steel material, seamless pipe, straight seam welded pipe, spiral welded pipe and matching pipe fittings. Manufacturing standards for ASTM, ASME, EN, JIS and so on, in line with international standards.
The chairman of the company: Mr. Ming SUN, is a strong environmentalist and a fan of technological innovation. He cares about climate change and environmental protection, and makes continuous efforts and takes action for it.
Began in 2019, in response to the national innovation, public entrepreneurship, launched the clean energy technology research and development, then focus on the new vertical axis wind power technology research and development, in order to solve the bottleneck of wind power, mainly focus on research and development of new vertical axis wind turbine design, main direction, suspension, grid structure, rail maglev, cable, land floating, floating, and so on. More than 40 patents have been authorized by the State Intellectual Property Office, a number of international patents have been authorized, and more international patent applications have been launched to spread and promote our new technology!
An authoritative deep dive into metallurgy, manufacturing standards, global supply trends, and structural implementations.
In municipal utilities, heavy industries, petrochemical networks, and structural structural projects, the 1-inch carbon steel pipe serves as a fundamental building block. Representing a nominal size with a standardized outer diameter of 1.315 inches (33.4 mm), this dimensions offers an exceptional ratio of fluid-carrying capacity to structural strength. This unique characteristic makes it highly suitable for high-pressure, high-temperature, and mechanical load-bearing applications.
From a metallurgical perspective, carbon steel combines carbon and iron, with carbon content typically ranging from 0.12% to 2.0%. The mechanical attributes of 1-inch pipes, such as high tensile strength, ductility, and malleability, depend directly on the precision of this carbon ratio. To satisfy severe operating environments, leading manufacturers must adhere to international quality benchmarks like ASTM A106 Grade B (for high-temperature pressure service) and ASTM A53 Grade B (for mechanical and pressure applications).
Modern carbon steel pipe production is split into two primary methodologies, each designed for specific industrial workloads:
| Specification Class | Outer Diameter (OD) | Wall Thickness (Schedule 40) | Wall Thickness (Schedule 80) | Typical Materials & Standards |
|---|---|---|---|---|
| 1" Nominal Pipe Size (NPS) | 1.315 in (33.4 mm) | 0.133 in (3.38 mm) | 0.179 in (4.55 mm) | ASTM A106 Gr. B / ASTM A53 Gr. B / API 5L |
| Deformation Tolerance | ±0.4 mm (High-Precision) | ±12.5% (Nominal) | ±12.5% (Nominal) | EN 10216 / JIS G3454 |
As pipeline operators prioritize carbon neutral footprints and zero-leakage policies, structural pipe protection has evolved. Modern manufacturers are deploying advanced fusion-bonded epoxy (FBE) and 3-Layer Polyethylene (3LPE) external coatings. This protects 1-inch lines against subterranean chemical attacks and galvanic corrosion. Inside the pipe, micro-alloying techniques incorporating elements like titanium, niobium, and vanadium are improving toughness without raising carbon levels. This ensures weldability remains exceptionally high under critical fieldwork constraints.
International buyers seek long-term supply agreements with manufacturers that can guarantee metallurgical stability and trace capability. High-precision documentation, Heat Number tracking, and certified Material Test Reports (MTR) are essential for high-integrity projects across Europe, North America, and Southeast Asia.
Delivering high-quality structural steel globally requires conforming to national import laws. Our manufacturing team operates under ISO 9001:2015 conditions and produces components compliant with EN 10204 3.1 certification guidelines, facilitating seamless integration into municipal frameworks worldwide.
Kerlimar merges pipeline supply chains with clean energy technology. By matching carbon steel pipelines with our patented vertical axis wind energy hardware, we offer an eco-conscious system designed to build structural energy structures for smart cities.
National High-tech Enterprise Certified & Award-Winning Innovations
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, in August 2022, we participated in the 11th China Innovation and Entrepreneurship Competition, and won the Excellence award. In December 2023, we were invited to participate in the Dubai COP28 Conference.
We are currently completed 10KW-500KW series of small units before landing experiment, will actively participate in the thousands of the wind action, with the help of this series of technology efficiency, low cost, high reliable, high security, easy control and other fine features, will become an indispensable part of the new productivity, and make outstanding contribution for rural revitalization and early realization of the whole society double carbon goals ! To provide strong support for the grand goal of controlling the global average temperature rise below 1.5 C, and create a better future for human society!
For chemical and power piping applications, estimating the maximum allowable working pressure (MAWP) of a 1-inch carbon steel pipe is crucial. Using Barlow's Formula, engineers calculate internal design pressure based on wall thickness and material yield strengths:
P = (2 * S * t) / D
Where P represents design pressure, S represents allowable stress value (typically 15,000 to 20,000 PSI for A106/A53 Grade B under moderate temperatures), t represents wall thickness, and D represents the outside diameter of 1.315 inches. This formula demonstrates that Schedule 80 pipes (0.179" wall) provide a significantly higher pressure ceiling compared to standard Schedule 40 (0.133" wall), making them suitable for high-stress hydraulic lines and heavy processing plants.
By 2030, Shaanxi Kerlimar Engineers Co., Ltd. aims to fully integrate green hydrogen-based steelmaking sourcing into our supply chain. Partnering with upstream eco-conscious mills, we target a 30% reduction in the lifecycle greenhouse gas footprint of our structural carbon steel distribution network. Combined with our efforts in vertical axis wind power patents, we strive to build a closed-loop system of low-emission steel and wind power structures.
Industrial insights and technical clarification from our chief engineering team.
API-certified tubing, high-precision thermal control systems, and robust structural section pipes.
Kerlimar