Womic Stainless Steel Co., Ltd
Womic Stainless Steel Co., Ltd is a leading manufacturer, supplier, and global exporter of Heat Exchanger Tubes, providing seamless and welded stainless steel, duplex, and nickel alloy tubes designed for heat transfer applications in industrial systems.
WOMIC Steel manufactures and supplies high-quality finned tubes for heat exchangers, including extruded fin tubes, welded fin tubes, L-type fin tubes, LL-type fin tubes, KL-type fin tubes, and embedded (G-type) fin tubes, suitable for air coolers, boilers, economizers, condensers, and heat recovery systems.
Our heat exchanger tubes are manufactured according to major international standards including ASTM, ASME, EN, DIN, JIS, and GOST, ensuring excellent thermal conductivity, mechanical strength, corrosion resistance, and dimensional precision.
These tubes are suitable for a wide range of applications such as boilers, condensers, evaporators, heaters, and coolers, where efficient heat transfer and corrosion resistance are essential.
Product Types (Fin Types)
Extruded Finned Tubes
High Frequency Resistance Welded (HFW) Finned Tubes
L-Type Finned Tubes
LL-Type Finned Tubes
KL-Type Finned Tubes
G-Type (Embedded) Finned Tubes
Solid Fin Tubes (Integral Fins)
Specification Range:
Outside Diameter (OD): 6 mm–114.3 mm (1/8"–4½")
Wall Thickness (WT): 0.5 mm–12.7 mm
Length: Up to 30 meters (straight) / Custom U-bend lengths
Type: Seamless / Welded / U-bent / Corrugated
Surface Finish: Annealed & Pickled, Polished (180#–400#), Bright Annealed (BA)
Ends: Plain End (PE) / Beveled End (BE) / U-bent Ends
Tolerances: As per ASTM A450 / A999 / EN ISO 1127
All heat exchanger tubes are internally cleaned and deburred to ensure smooth flow and maximum heat transfer efficiency.
Fin Dimensions
Fin Height: 5 mm–26 mm
Fin Thickness: 0.8 mm–2.5 mm
Fin Density: 5–20 Fins per Inch (FPI)
ASTM / ASME:
ASTM A213 / A213M–Seamless Tubes for Boiler and Heat Exchanger Service
ASTM A249 / A249M–Welded Tubes for Heat Exchangers and Condensers
ASTM A269–General Service Stainless Steel Tubes
ASTM B163 / B167 / B619 / B626–Nickel Alloy Heat Exchanger Tubes
EN / DIN: EN 10216-5, EN 10217-7, DIN 17456 / 17458
JIS: JIS G3463–Stainless Steel Boiler and Heat Exchanger Tubes
GOST: GOST 9941 / 9940
Tube Materials & Grades
Base Tube Materials:
Carbon Steel:
ASTM A179, ASTM A192, ASTM A210, ASTM A106, ASTM A53
Alloy Steel:
ASTM A213 T5 / T9 / T11 / T12 / T22 / T91
Stainless Steel:
ASTM A213 TP304 / 304L / 316L / 321 / 347
Duplex & Super Duplex Stainless Steel:
UNS S31803, S32205, S32750
Nickel Alloys (on request):
Inconel 600 / 625 / 800 / 825
Hastelloy, Monel
Fin Materials:
Carbon Steel
Aluminum
Stainless Steel
Copper
Alloy Steel
Material Category Grades / UNS No. Equivalent Standard Typical Use
Austenitic Stainless Steel:TP304, TP304L, TP316, TP316L, TP321, TP347, TP310S EN 1.4301, 1.4404, 1.4541, 1.4845
General industrial and marine heat exchangers
Duplex Stainless Steel:S31803 / S32205 (2205), S32750 (2507) EN 1.4462, 1.4410
Seawater & high-pressure heat exchangers
Nickel Alloys:N06625 (Inconel 625), N08825 (Incoloy 825), N10276 (Hastelloy C276), N04400 (Monel 400) ASTM B163 / B622 / B165
Chemical, petrochemical, offshore environments
Copper Alloys (Optional):C70600 (CuNi 90/10), C71500 (CuNi 70/30) ASTM B111
Condenser and desalination systems
All tubes are annealed and pickled for excellent corrosion resistance and available in U-bent, straight, or coil form to fit specific exchanger configurations.
Chemical Composition Analysis
Mechanical Tests (Tensile, Flattening, Expansion)
Eddy Current / Ultrasonic Testing
Hydrostatic Test
Fin Bond Strength Test
Dimensional Inspection
PMI (for stainless & alloy steel)
Womic Heat Exchanger Tubes are designed to perform efficiently in a wide variety of industries that require heat transfer, cooling, and condensation processes under harsh environments.
Typical applications include:
Petrochemical & Chemical Plants: Heat exchangers, condensers, reboilers, and reactors.
Oil & Gas Industry: Offshore coolers, separators, and process heaters.
Power Generation & Boilers: Superheater and economizer tubes for steam systems.
Desalination & Marine Engineering: Seawater-cooled condensers and brine heaters.
Food & Beverage Processing: Sanitary heat exchangers and pasteurizers.
HVAC & Refrigeration: Chiller and air-cooling systems.
Pharmaceutical Industry: Clean process fluid heating and cooling applications.
Our tubes deliver high thermal efficiency, corrosion resistance, and long service life in even the most demanding environments.
Womic Stainless Steel Co., Ltd is a trusted global partner for premium heat exchanger tubes, offering integrated manufacturing, inspection, and export services with guaranteed quality.
Wide Material Range
From stainless and duplex to nickel and copper alloys–a complete portfolio for all heat exchanger applications.
Precision Manufacturing
Advanced cold drawing, TIG welding, and heat treatment ensure perfect surface finish, tight tolerances, and uniform mechanical properties.
Global Standard Compliance
All tubes are produced according to ASTM, ASME, EN, DIN, JIS, and GOST standards.
Strict Quality Assurance
Each tube undergoes hydrostatic testing, eddy current inspection, PMI testing, and dimensional checks, supplied with EN 10204 3.1 / 3.2 Mill Test Certificates.
Custom Solutions
Special tube configurations such as U-bent, finned, or corrugated tubes available upon request.
Fast Delivery & Competitive Prices
Large inventory and flexible production capacity ensure short lead time and competitive cost.
Certified Manufacturer
ISO 9001 certified factory, with third-party inspection available from SGS, TUV, BV, Lloyd’s Register, etc.
Looking for a reliable supplier of Heat Exchanger Tubes for your next project?
Contact Womic Stainless Steel Co., Ltd today for a competitive quotation and professional technical support.
Tel: 0086-18390957568
Whatsapp: 0086-15575100681
E-mail:info@womicstainless.com
Website: www.womicstainless.com
