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Utilizing 26 high-precision cold rolling mills and 6 cold drawing machines, we ensure dimensional accuracy and superior mechanical properties.
High Thermal Conductivity TP430 Tubing
Ferritic 17Cr | UNS S43000 | 26 W/m·K Thermal Conductivity
ASTM A268 | Low Expansion | Heat Transfer GradeRelated Products
Introduction
High Thermal Conductivity TP430 Tubing is chosen for what happens to heat, not just corrosion. Ferritic 16-18% chromium steel conducts heat at about 26 W/m·K at 100°C, compared with roughly 16 W/m·K for TP304 and TP316. That 60% advantage means less wall resistance in a tube bundle, so a heat exchanger can be built shorter or run at a smaller temperature difference for the same duty. Its coefficient of thermal expansion, around 10.4 µm/m·K, is also about 40% lower than austenitic tube, which reduces thermal stress at tubesheet joints during start-up and shutdown.
TP430 carries 16-18% chromium, up to 0.12% carbon and essentially no nickel, giving a minimum tensile strength of 415 MPa, yield strength of 240 MPa and 20% elongation. Corrosion resistance is good in nitric acid, fresh water, steam condensate and many food acids, and the absence of nickel makes it immune to chloride stress corrosion cracking. Its limits are chloride pitting, reducing acids and weld toughness: heat-affected zones coarsen and lose ductility, so TP430 is best used in thin walls that can be welded with matching fillers or expanded mechanically.
Common uses include feedwater heaters and moisture separator reheaters in power plants, nitric acid condensers, domestic and commercial boiler and water heater tubes, oven and cooking appliance elements and automotive heat shields. Ferritic chemistry is also magnetic. Service temperature in air is generally limited to about 815°C intermittent and 870°C scaling, while long exposure between 400°C and 540°C should be avoided because of 475°C embrittlement. Where chloride pitting is a concern, TP444 is the closer ferritic alternative.
Specifications
| Material Grade | TP430 (UNS S43000) |
| Standard | ASTM A268, ASME SA268 |
| Outer Diameter | 6.35mm - 76.2mm |
| Wall Thickness | 0.5mm - 5mm |
| Length | Up to 15000mm / U-Bend |
| Finish | Bright Annealed |
Chemical Composition
| C | Mn | Si | Cr | Ni |
| ≤.12 | ≤1.0 | ≤1.0 | 16-18 | ≤0.75 |
High Conductivity Low Expansion
Mechanical Strength
Comprehensive Info
| MOQ | 500kg |
| Lead Time | 20 - 30 Days |
| Thermal Conductivity | ~26 W/m·K |
| Thermal Expansion | ~10.4 µm/m·K |
Key Applications
Feedwater Heaters Power plant heater and reheater tube
Nitric Acid Condensers Nitric acid and food acid heat exchange
Appliances Boiler, oven and water heater elements
Advantages
60% Better Conductivity
Shorter bundles or smaller temperature differences.
Low Expansion
About 40% less than austenitic, less tubesheet stress.
SCC Immune
No nickel, so chloride cracking does not occur.
Nickel Free Price
Stable cost independent of nickel markets.
About Jiangsu Jend Tube Co.,Ltd.
As China High Thermal Conductivity TP430 Tubing Manufacturers and Wholesale High Thermal Conductivity TP430 Tubing Factory, Established in 2011 and is a manufacturing enterprise with a complete manufacturing cycle from raw material selection to finished product delivery. The company currently has more than 100 employees, covers an area of 30015 square meters, and has a registered capital of 48 million yuan, annual production capacity of 3800 tons.
The company has passed ISO9001:2015 quality certification, domestic pressure vessel TS certification, and foreign pressure vessel PED certification. With rich experience and mature technology, we have been expanding our market internationally. At present, our products are exported to more than 50 countries and regions including Europe, America, Southeast Asia, and the Middle East.
The company adheres to different production norms and standards such as the American standard (ASTM), the European standard (EN), the German standard (DIN), the Japanese standard (JIS), the Russian standard (GOST), and the Chinese standard (GB).
Our company specializes in and customizes various specifications of Martensite TP410 (0Cr13, 1Cr13), Ferrite TP405 (1Cr13Al), TP430 (1Cr17), TP444 (0Cr18Mo2), TP439, TP409 (0Cr11Ti), It is also proficient in manufacturing Austenitic seamless stainless steel pipes of series such as TP304(L/H), TP316(L/H/Ti), TP310S, TP317, TP321(H) and TP347(H). Duplex such as S31803, S2205, S32750, S32304, and Nickel-based alloys Monel400, Monel600, Monel800, GH3030, 904L, Inconel 625, etc.
The company mainly produces seamless steel pipes with the following specifications: outer diameter: 3.18mm to 406.4mm, wall thickness: 0.3mm to 20mm, and the longest length is 25000mm. Additionally, it can customize seamless steel pipes with special materials and specifications according to customer requirements. The company attaches great importance to scientific innovation. The staff of the company vigorously develop technological research and development.
Jiangsu Jend Tube Co.,Ltd. will continuously accumulate professional knowledge and capabilities, striving to become a leader in the domestic market and even the world market. Strive to be the most reassuring pipe manufacturing enterprise for customers.
Precision Manufacturing and Process Optimization
We rely on precision equipment and optimized production technologies to achieve outstanding mechanical performance and consistent product quality.
Cold Rolling and Cold Drawing
Solution Heat Treatment
Natural gas solution treatment furnaces and BA solution treatment furnaces optimize the material's grain structure, enhancing corrosion resistance.
Precision Straightening and Polishing
10 straightening machines and 8 finishing polishing machines guarantee product surface smoothness and dimensional accuracy.
Automated Inspection and Quality Assurance
Real-time monitoring systems ensure the stable quality of every batch of products.
Usage Tips
Weld Thin Walls
Keep walls thin and use matching fillers; grain coarsening in the heat-affected zone reduces toughness.
Avoid 475°C Zone
Do not hold at 400-540°C for long periods; ferritic steels embrittle in that range.
Services
U-Bending
Bundle bends for heater and condenser designs.
Eddy Current Testing
Full-length inspection.
Bright Annealing
Clean surface for heat transfer.
Logistics
30% T/T Deposit / L/C at sight. Bundled with plastic caps and packed in plywood cases to protect the bright surface.
Standards
ASTM A268
ASME SA268
ISO 9001
Frequently Asked Questions
Why choose TP430 over TP304 for heat transfer?
About 60% higher thermal conductivity and 40% lower expansion.
Is TP430 magnetic?
Yes, ferritic stainless steels are magnetic.
Does TP430 suffer stress corrosion cracking?
No, without nickel it is immune to chloride stress corrosion cracking.
What are its weaknesses?
Chloride pitting, reducing acids and lower weld toughness.
Can it be U-bent?
Yes, with suitable radius and annealing.
What if chloride pitting is a concern?
Choose TP444, which adds molybdenum and stabilization.
Ready to Order TP430 Heat Transfer Tubing?
Share your duty, tube length and temperatures for a bundle design comparison.
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