ASTM A106 Grade B is the gold standard for seamless carbon steel pipe in high-temperature service. Unlike A53, A106 is specifically engineered for severe environments like power plants, refineries, and chemical processing. It supports temperatures exceeding 750°F (400°C) with exceptional creep resistance.
The "Grade B" designation requires a Carbon maximum of 0.30%, Manganese between 0.29-1.06%, and essential trace elements like Phosphorus and Sulfur kept below 0.035%. This precise chemistry ensures superior weldability and ductility for complex industrial routing.
With a minimum tensile strength of 60,000 psi (415 MPa) and a yield strength of 35,000 psi (240 MPa), A106 Gr B pipes provide the safety margins required for high-pressure steam and gas transmission lines, reducing the risk of catastrophic failure.
Established in 2003, Shaanxi Kerlimar has stood at the forefront of the international pipe and steel trade for over two decades.
Specializing in a comprehensive range of pipes—including carbon steel, alloy steel, and stainless steel—we offer seamless, straight seam welded, and spiral welded solutions. Our adherence to international manufacturing standards (ASTM, ASME, EN, JIS) ensures that every project receives components of the highest caliber.
Core Promise: We are providing good quality, price competition, timely delivery, and perfect service to our global clientele.
Years of Experience
Tech Patents
Custom Solutions
International Patents
The demand for Carbon Steel Pipe ASTM A106 Gr B is currently surging in the Middle East's hydrogen initiatives and Southeast Asia's rapid urbanization. Procurement managers are increasingly looking for "Information Gain"—seeking suppliers who offer not just pipe, but full traceability, metallurgical reports, and logistics transparency.
As the world pivots toward decarbonization, Shaanxi Kerlimar is integrating steel solutions with renewable energy. From providing structural piping for large-scale solar arrays to the vertical axis wind power tech mentioned below, we bridge the gap between traditional heavy industry and the green future.
Future pipelines will feature smart-coatings and IoT-enabled monitoring. Our roadmap includes developing low-corrosion alloy-infused carbon steel that meets ASTM A106 standards while offering double the service life in coastal environments.
Our Chairman, Mr. Ming SUN, is a dedicated environmentalist and technology pioneer. Under his leadership since 2019, Shaanxi Kerlimar has expanded beyond steel into clean energy R&D.
We are tackling the "wind power bottleneck" through vertical axis wind turbine design, exploring suspension structures, rail maglev, and floating land/water systems. With 40+ national patents and numerous international PCT filings, we are transforming into a technology-driven industrial leader.
In 2020, we achieved National High-Tech Enterprise status. Our journey has taken us to the China-Finland High Technology Match Conference (2021), the 11th China Innovation and Entrepreneurship Competition (Excellence Award, 2022), and the prestigious Dubai COP28 Conference (2023).
Our 10KW-500KW units are ready for global rural revitalization projects, contributing to the goal of limiting global temperature rise to below 1.5°C.
We provide on-the-ground engineering consultation for projects in Southeast Asia and the Middle East, ensuring that ASTM A106 Gr B installations meet local safety codes and environmental regulations.
Every shipment is accompanied by Mill Test Certificates (MTC) according to EN 10204 3.1 or 3.2, ensuring total traceability and adherence to API 5L and ASME B36.10 standards.
With strategic warehousing and partnerships with global shipping lines, we guarantee timely delivery of Carbon Steel Pipe even during volatile market conditions.
Grade C has a higher carbon and manganese content, which leads to a higher tensile strength (70,000 psi) but slightly lower ductility and weldability compared to Grade B.
Standard A106 is not specifically for sour service. For H2S environments, additional tests like NACE MR0175/ISO 15156 are required to ensure resistance to stress corrosion cracking.
While primarily a pressure pipe, its high strength makes it suitable for structural applications, though A500 or A53 might be more cost-effective if high-temp resistance isn't needed.
We supply from 1/8" NB to 48" NB, with schedules ranging from SCH 10 to SCH XXS, following ASME B36.10 specifications.
SEO Director's Note: In the current industrial landscape, selecting a Carbon Steel Pipe ASTM A106 Gr B company requires evaluating more than just price. It requires a partner with Technical Authoritativeness (proven by patents and high-tech certifications) and Environmental Accountability (demonstrated by participation in COP28 and green energy R&D). Shaanxi Kerlimar Engineers Co., Ltd. embodies these values, providing the information increment necessary for complex procurement decisions.
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