At Womic Steel, we specialize in the production of advanced Twisted Tubes (Spiral Flattened Tubes) and high-quality boiler tubes designed for efficient and reliable heat transfer applications. Compared with conventional heat exchanger tubes, twisted tubes feature a unique geometry that induces spiral flow motion in both the shell side and tube side fluids. This design significantly enhances turbulence, increasing the overall heat transfer coefficient by up to 40%, while maintaining nearly the same pressure drop as standard smooth tubes.
Advantages of Womic Steel Twisted Tubes
- Enhanced Heat Transfer: Spiral-induced turbulence prevents boundary layer formation, boosting efficiency.
- Compact Design: Higher thermal performance allows reduction in heat exchanger size and weight.
- Reliable Operation: Reduced fouling tendency due to self-cleaning flow patterns.
- Wide Application: Suitable for boilers, condensers, petrochemical plants, refineries, and power generation equipment.
Common Standards and Grades
Womic Steel manufactures twisted tubes and boiler tubes in accordance with international standards:
Standards:
- ASTM A179 / A192 (Seamless Carbon Steel Boiler Tubes)
- ASTM A210 / A213 (Carbon and Alloy Steel Boiler Tubes)
- ASTM A335 (Seamless Ferritic Alloy-Steel Pipes for High-Temperature Service)
- EN 10216 Series (European Standards for Seamless Pressure Tubes)
Material Grades:
- Carbon Steel: SA179, SA192, SA210 Gr.A1, C
- Alloy Steel: SA213 T11, T22, T91, SA335 P11, P22, P91
- Stainless Steel: TP304, TP304L, TP316, TP316L, Duplex (SAF2205, SAF2507)
Production Process
1. Raw Material Selection: Premium quality billets and hollows sourced from trusted steel mills.
2. Tube Forming: Seamless extrusion and hot rolling, followed by cold drawing for dimensional precision.
3. Twisting & Shaping: Specialized forming technology imparts the spiral flattened geometry without compromising tube integrity.
4. Heat Treatment: Normalizing, quenching, and tempering ensure proper mechanical properties.
5. Surface Treatment: Pickling, polishing, or coating for corrosion resistance.
Inspection and Testing
To guarantee performance and reliability, Womic Steel applies strict quality control measures, including:
- Chemical Analysis (Spectrometer test)
- Mechanical Testing (Tensile, Hardness, Flattening, Flaring)
- NDT Examinations (Eddy Current, Ultrasonic, Hydrostatic Test)
- Dimensional & Visual Inspection (OD, WT, length, surface quality)
- Special Tests (Intergranular corrosion, impact test, as per customer request)
Why Choose Womic Steel
With years of expertise in manufacturing heat exchanger and boiler tubing, Womic Steel ensures:
- Consistent quality that meets international codes and standards
- Customized solutions for different industries and applications
- Competitive pricing supported by efficient production
- Technical support and after-sales service for long-term partnerships
At Womic Steel, our mission is to deliver innovative tubing solutions that maximize efficiency and reliability in critical heat transfer applications. Whether for boilers, condensers, petrochemical systems, or power plants, our twisted tubes and boiler tubes are engineered to meet the toughest operating conditions.
We pride ourselves on our customization services, fast production cycles, and global delivery network, ensuring your specific needs are met with precision and excellence.
Website: www.womicsteel.com
Email: sales@womicsteel.com
Tel/WhatsApp/WeChat: Victor: +86-15575100681 or Jack: +86-18390957568
Post time: Sep-16-2025