When it comes to high-temperature applications, particularly in supercritical boilers and power plants, the SA 213 TP 347H Chemical Composition is the gold standard. As a premier manufacturer and factory in China, we understand that the precision of these elements determines the performance and safety of the entire system.
SA 213 TP 347H is a high-carbon, austenitic stainless steel stabilized with Niobium (Columbium). This stabilization is critical as it prevents intergranular corrosion when exposed to temperatures in the chromium carbide precipitation range (800-1500°F). Our factory ensures that the Niobium content is at least 8 times the Carbon content, but not exceeding 1.10%, which significantly enhances the material's creep rupture strength.
Key elements include Chromium (17.0–19.0%) for oxidation resistance, Nickel (9.0–13.0%) for structural stability, and Manganese (up to 2.0%) to improve hot working properties. By meticulously controlling these ratios, we produce tubes that can withstand the harshest thermal stresses in modern industry.
As developing nations upgrade their power grids and developed nations shift toward ultra-supercritical (USC) coal plants, the demand for high-grade TP 347H tubes has skyrocketed. It is now a staple in high-efficiency thermal power systems globally.
In the oil and gas sector, especially in refining units and hydrocrackers, the chemical stability of 347H makes it indispensable for handling high-pressure hydrogen and sulfur compounds at elevated temperatures.
The industry is moving toward "Smart Manufacturing." Our factory integrates IoT sensors and AI-driven quality checks to ensure that every millimeter of the SA 213 TP 347H tube meets international ASME and ASTM standards.
Global Projects
Quality Checkpoints
ASME Compliance
Exporting Countries
International buyers from the Middle East, Southeast Asia, and Europe prioritize SA 213 TP 347H for its longevity. Below are the key scenarios where our China-manufactured tubes excel.
Our factory provides "Localized Solutions"—we tailor the dimensions and surface treatments of our TP 347H products to meet the specific environmental conditions of the destination country, whether it's coastal humidity or desert heat.
With facilities in Cangzhou, Yangzhou, and Lishui, we offer a massive production capacity that reduces lead times for massive infrastructure projects.
Our research focuses on high-temperature alloy formulations and anti-corrosion coatings, holding multiple patents in precision machining.
We hold ISO 9001, API 5L/5CT, and PED certifications. Every product undergoes NDT (Ultrasonic and X-ray) inspection before shipping.
EZ Steel Industrial Co., Ltd is a leading manufacturer of high-performance industrial metal pipelines, specializing in alloy steel, carbon steel, stainless steel, and copper-nickel-based alloy products. Our state-of-the-art production bases are equipped with world-class machinery, including automated pipe forming lines, CNC machining centers, and robotic welding systems.
We pride ourselves on fostering a team of over 500 skilled professionals, including metallurgical engineers and quality assurance experts. Our Cangzhou facility excels in alloy steel pipe inventory management, while the Yangzhou base focuses on large-scale production, and the Lishui workshop specializes in premium corrosion-resistant materials.
Our state-of-the-art production bases are equipped with world-class machinery, including automated pipe forming lines, CNC machining centers, robotic welding systems, and precision nondestructive testing (NDT) equipment such as X-ray and ultrasonic inspection. The Cangzhou facility excels in alloy steel pipe inventory management and custom fittings fabrication, while the Yangzhou base focuses on large-scale production of carbon and alloy steel pipes.
At the core of our success lies a relentless commitment to technological advancement. Our dedicated R&D center collaborates with leading universities and industry partners to pioneer breakthrough solutions in material science, pipeline durability, and smart manufacturing. We hold multiple patents in anti-corrosion coatings, high-temperature alloy formulations, and precision machining processes.
We pride ourselves on fostering a team of over 500 skilled professionals, including metallurgical engineers, welding specialists, and quality assurance experts. Continuous investment in employee development ensures our workforce stays ahead of industry trends through regular certifications (e.g., ASME, AWS).
EZ STEEL
