Engineered for extreme environments, precision flow control, and maximum mechanical reliability
In the global industrial landscape, the procurement of piping infrastructure is no longer merely a transaction; it is a critical engineering decision that dictates operational uptime, structural integrity, and project safety. As premier carbon steel pipe stockists, Shaanxi Kerlimar Engineers Co., Ltd. serves as the essential link between steel mills and high-demand applications including petrochemical complexes, municipal transmission lines, high-pressure boilers, and renewable energy installations.
Global supply chain networks demand stockists who do more than warehouse material. Today's procurement teams require technical expertise, trace-element compliance validation, and strict adherence to international standards. As a certified High-tech Enterprise with 21 years of logistical and metallurgical heritage, Shaanxi Kerlimar integrates advanced material stocking with bespoke engineering support, ensuring that every shipment of seamless, welded, and anti-corrosive piping matches the precise mechanical thresholds of the end site.
Providing real-time inventory buffers that insulate critical infrastructure projects from volatile steel mill lead times and fluctuating raw material costs.
Rigorous multi-stage validation including chemical analysis, hydrostatic testing, Charpy V-notch impact testing, and Ultrasonic Testing (UT).
Complete material traceability from certified heats, conforming strictly to ASTM, ASME, EN, JIS, and API specifications.
Established in 2003, Shaanxi Kerlimar Engineers Co., Ltd. has stood at the forefront of the global steel trade and engineering services sector for over two decades. Over 21 years of steady operation, we have cultivated deep partnerships across oil and gas, municipal construction, structural fabrication, and power generation industries.
Our core supply capabilities encompass carbon steel, alloy steel, and stainless steel products, specifically specializing in seamless pipes, straight-seam welded pipes (ERW/LSAW), spiral-seam welded pipes (SSAW), and high-precision matching pipe fittings. By ensuring that all supplied components conform to strict international benchmarks, Kerlimar delivers more than raw products—we deliver long-term operational safety.
In 2020, our commitment to technical rigor earned us the prestigious National High-Tech Enterprise status. We pride ourselves on timely logistics, competitive pricing structures, and an experienced engineering advisory team capable of parsing complex specification sheets to prevent procurement errors.
Two decades of field-proven performance in metallurgy and clean-energy integration
The international market for carbon steel piping is shifting rapidly. Industrial buyers face high scrutiny regarding environmental metrics, supply origin validation, and material performance limits. Factors such as deepwater exploration, high-temperature power stations, and localized municipal infrastructure programs demand optimized carbon steel pipe properties.
As dynamic stockists, we recognize the key procurement trends:
Projects increasingly require pre-insulated, 3PE (Three-Layer Polyethylene), or FBE (Fusion Bonded Epoxy) coated pipes. This reduces onsite processing times and guarantees uniform protection across the line.
Adapting standard carbon lines to safely transport blended hydrogen requires precise controls over microstructure and hardness to prevent hydrogen embrittlement (HIC/SSCC protection).
Engineers require comprehensive Mill Test Certificates (MTCs) to EN 10204 3.1 or 3.2, validating exact chemical composition, heat treatments, and mechanical performance parameters.
Under the leadership of our Chairman, Mr. Ming SUN—a dedicated environmentalist and technological innovator—Shaanxi Kerlimar has integrated ecological awareness into its core industrial distribution operations. We understand that carbon steel manufacturing and distribution contribute to global industrial emissions, and we actively invest in clean-energy research to offset this footprint.
Since 2019, Kerlimar has driven R&D in advanced vertical axis wind turbine (VAWT) technologies. This initiative focuses on structural steel optimization, magnetic levitation, grid integration, and floating offshore configurations. With over 40 patents authorized by the State Intellectual Property Office (SIPO) and multiple international filings underway, we are developing highly reliable, low-cost clean energy solutions.
Our clean-energy solutions, ranging from 10KW to 500KW units, have undergone rigorous testing. Our participation in the China-Finland High Technology Match Conference, the 11th China Innovation and Entrepreneurship Competition, and the Dubai COP28 Conference underscores our dedication to controlling global temperature rises below 1.5°C.
Below is a reference guide for carbon and alloy steel piping systems sourced and stocked by Shaanxi Kerlimar. All shipments include certified test reports detailing compliance.
| Material / Standard | Common Grades | Dimensions & Schedules | Typical Industrial Applications |
|---|---|---|---|
| ASTM A106 / ASME SA106 | Grade A, B, C | Seamless; NPS 1/8" to 48"; Sch 10 to XXS | High-temperature, high-pressure steam, oil and gas piping, and refinery service. |
| API 5L (PSL1 & PSL2) | Gr. B, X42, X52, X60, X65, X70 | Seamless & Welded; Up to 80" OD | Hydrocarbon transportation pipelines; deepwater sour gas service (PSL2). |
| ASTM A53 / ASME SA53 | Grade A, B (Type F, E, S) | Seamless & ERW Welded; NPS 1/8" to 26" | General mechanical and low-pressure fluid transport (water, gas, structural). |
| ASTM A333 (Low Temp) | Grade 1, 3, 6 | Seamless & Welded; Sch 40 to XXS | Cryogenic plant plumbing, gas storage, and sub-zero arctic pipelines. |
| EN 10210 / EN 10219 | S235JRH, S275J0H, S355J2H | Circular, Square & Rectangular Hollows | Heavy structural steel frames, civil engineering, bridges, and offshore platforms. |
A reliable piping system requires matching accessories and protective coatings. Shaanxi Kerlimar supplies a comprehensive catalog of ancillary flow control equipment and structural components:
1. Premium Butt-Welded Pipe Fittings: Eliminating potential leak points requires high-integrity elbows, reducers, tees, and caps. Our stock of fittings matches the exact schedule and steel chemistry of our pipe inventory to ensure seamless welding and consistent pressure rating.
2. Flow Control Valves: We offer valves certified to API standards to manage flow velocities, pressures, and shut-off procedures in oil, gas, and steam loops.
3. Advanced Thermal & Anti-Corrosion Systems: Our specialized anti-corrosion applications (3PE, FBE, Coal Tar Epoxy) and pre-insulated pipe-in-pipe systems protect against chemical, subterranean, and oceanic corrosion.
Answers from our engineering desk regarding metallurgy, logistics, and compliance
Engineered for extreme environments, precision flow control, and maximum mechanical reliability
Kerlimar
