In the modern industrial landscape, Steel Rectangular Pipes (also known as Rectangular Hollow Sections or RHS) have transitioned from simple structural components to high-engineered assets. Unlike standard circular pipes, rectangular pipes offer a superior strength-to-weight ratio, particularly in resisting bending and torsional stress.
Information Gain: We are seeing a 15% increase in global adoption of RHS in prefabricated "Green Buildings" due to their ease of joinery and aesthetic versatility compared to traditional I-beams.
The global steel tube market is projected to reach $210 billion by 2030. Key growth drivers include:
Established in 2003, Shaanxi Kerlimar Engineers Co., Ltd. has long been a cornerstone in the international trade of industrial piping. Our expertise spans carbon steel, alloy steel, and stainless steel materials.
We specialize in Seamless pipes, Straight seam welded pipes (ERW), and Spiral welded pipes (SSAW), ensuring every product meets rigorous international standards including ASTM, ASME, EN, and JIS. Our mission is built on four pillars: Quality, Price Competitiveness, Timely Delivery, and Perfect Service.
Modern manufacturing now utilizes AI-driven ultrasonic testing and real-time laser monitoring to ensure weld integrity in Rectangular Square Tubes, reducing failure rates to near zero.
Procurement teams are prioritizing "Green Steel"—products manufactured using hydrogen-reduction or electric arc furnaces (EAF) to meet Scope 3 emissions targets.
The rise of Thermal Insulation Pipes and 3PE (Three-Layer Polyethylene) anti-corrosion technology has extended the lifespan of underground pipelines by over 50 years.
Led by Chairman Mr. Ming SUN, a dedicated environmentalist, Kerlimar has integrated technological innovation with climate action. Since 2019, we have pivoted toward Clean Energy Technology, specifically vertical axis wind power.
Our research focuses on solving wind power bottlenecks through:
With over 40 patents authorized by the State Intellectual Property Office, we are actively participating in the "Thousands of Wind" action to facilitate rural revitalization and global "Double Carbon" goals.
Rectangular pipes serve as the primary skeleton for airports, stadiums, and high-speed rail stations, offering the rigidity required for long-span structures.
Our API Certified Oil Tubes and Tubing Casing solutions are engineered for high-pressure environments, ensuring uninterrupted flow in precision manufacturing.
Seamless Thermal Insulation Pipes are critical for district heating and LNG transport, minimizing heat loss in extreme climatic conditions.
Implementation of IoT sensors in the extrusion process to provide full traceability from raw billet to finished rectangular pipe.
Development of ultra-high corrosion-resistant alloys that eliminate the need for secondary galvanization, reducing environmental impact.
Aligning with global 1.5°C temperature rise targets through solar-powered factory operations and 100% recyclable steel scrap utilization.
Rectangular pipes offer directional strength. When a structure requires resistance specifically on a vertical or horizontal axis, RHS provides a more efficient material distribution than square sections.
We adhere to ASTM (American), EN (European), and JIS (Japanese) standards. Our factory undergoes annual audits for ISO 9001 and API certifications to ensure global interchangeability.
Yes, our High-Quality Stainless Steel Pipes and Anti-Corrosion coated pipes are specifically designed to withstand saline environments and high humidity without degradation.
Typically, we maintain a rolling stock for standard sizes, but custom ERW or SSAW orders usually range from 15 to 30 days depending on the technical specifications.
Kerlimar
