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Buyer's guide

Heat Exchanger Fin Tubes & Stainless Steel Tubes from China — A Specialist Materials Buyer's Guide

Sourcing guide for heat exchanger tubes from China — spiral fin, L-foot, integral low-fin, smooth seamless stainless and copper alloy tubes. Real product images from FB Material. Material selection, fin type optimization, ASME certifications, MOQ economics.

Information notice: the details below were compiled from published supplier material and buyer correspondence. Specifications, MOQ, lead times and pricing change — confirm every figure with the supplier before you order.

Product range — actual catalogue images

The product images below are hosted on the manufacturer's official website (fbmaterial.com) and link directly to the manufacturer's catalogue. Click any image to view the full specification page in a new tab.

Spiral fin tubes for heat exchangers — extended-surface tubes for boilers, heat recovery, HVAC.

Stainless steel seamless tubes — heat exchanger and process piping.

Copper-base finned tubes for HVAC heat exchangers — high-thermal-conductivity finned surface.

Heat exchanger tube categories

Tube typeConstructionBest applicationsTypical FOB China per meter (DN25)
Smooth seamless tube (carbon steel)OD 12-219mm; cold-drawn or hot-rolledBoilers, heat exchangers (general), pipe systemsUSD 1.20-4.50
Smooth seamless tube (stainless 304)OD 6-219mm; cold-drawnHeat exchangers, food/dairy, mild chemicalUSD 4.50-12.00
Smooth seamless tube (stainless 316L)OD 6-219mm; cold-drawnMarine, chemical, pharma, brackish waterUSD 6.50-18.00
Smooth tube (copper / copper-alloy)OD 6-159mm; soft-annealed or hard-temperHVAC, refrigeration, condensers, marineUSD 6.50-22.00
Spiral / helical fin tube (carbon steel)Smooth tube + steel fin spirally wound and weldedBoiler economizers, heat-recovery, HRSGUSD 12-38
L-foot finned tubeAluminum or copper L-foot fin tension-wrapped on tubeAir-cooled heat exchangers, fin-coil heat exchangersUSD 14-42
Integral low-fin tubeFins machined integrally with tube wallRefrigeration condensers, premium HVAC, marineUSD 22-65
Studded fin tubeSteel studs welded to base tubeHeavy-duty boiler economizers, exhaust gas systemsUSD 18-58
Duplex stainless tube (UNS S31803, S32205)Cold-drawn duplex stainlessSeawater, sour gas, chemical processingUSD 28-75
Super-austenitic (254 SMO, AL-6XN)Cold-drawn high-Ni-Mo stainlessSeawater service, chloride-rich brineUSD 65-180
Hastelloy / Inconel tubesCold-drawn nickel alloyHigh-temperature, corrosive, refineryUSD 95-380

Material selection by service environment

Service environmentRecommended tube materialAvoid
Steam / boiler tube (high-pressure water-side)Carbon steel SA-178 / SA-179, alloy SA-213 T22 for higher tempStainless for cost reasons
HVAC / refrigeration (R134a, R410A)Copper C12200 (deoxidized phosphorus copper)Carbon steel (corrodes), aluminum (bimetallic issues)
Seawater condenserCu-Ni 90/10 or 70/30, titanium, super-austenitic304 stainless (chloride pitting), copper (biofouling)
Brackish / cooling tower water304L for low chloride; 316L for moderate; duplex for high chlorideCarbon steel without corrosion allowance
Sour gas / oil-fieldDuplex stainless (UNS S31803), Hastelloy C-276Carbon steel (sulfide stress cracking), 316 (CSCC at high temp)
Refinery / petrochemicalSA-213 T22 / T91 for high-temp; duplex for chlorideStandard carbon steel above 400°C
Power plant economizer (flue gas side)Carbon steel finned tubes; alloy steel if SO2 condensation possibleStandard CS where dewpoint corrosion occurs
Pulp & paper black liquor304L stainless (chloride limited)Carbon steel (rapid attack)
Pharmaceutical / sanitary316L electropolished, double-tube-sheet config304 (insufficient corrosion margin)
Cryogenic / LNG9% nickel steel, 304L, aluminum brazed plate-finCarbon steel below -29°C (brittle)

Fin tube selection — when each type makes sense

Tube failure in steam boilers, refinery heat exchangers, refrigeration systems, and process exchangers can cause: (1) production shutdown (USD 50,000-2,000,000+ per day for major industrial facilities); (2) safety incidents from contaminated cross-flow (chemical/process exchangers); (3) catastrophic equipment damage from overheating or pressure release. Material selection MUST match service environment — undersizing or wrong material is the dominant root cause of premature failure.

Specify tubes with mill test certificates per relevant standards: ASME SA-178, SA-179, SA-249 (carbon and stainless boiler/heat exchanger tubes); ASTM B111 (copper-alloy condenser tubes); ASTM B677 (high-Ni austenitic). For critical service, additional qualification testing (intergranular corrosion per ASTM A262 for stainless; flaring/flattening tests for bend-quality; ultrasonic inspection for wall thickness uniformity) is appropriate. Reputable suppliers like FB Material provide complete documentation packages.

Fin typeHeat transfer area ratio (vs smooth)Best applicationsLimitations
Spiral / helical wound10-20×Boiler economizers, HRSG, large air-cooled HXCleaning fins is harder; stress-corrosion at fin-tube weld
L-foot tension wrapped8-15×Air-cooled HX, fin-coil HVACLower temperature limit (~150-180°C); thermal cycling separates fin
Extruded / overlap-rolled10-18×Power plant air-cooled, premium air-cooled HXHigher cost; specialty fabrication
Integral low-fin (ILF)2-3×Refrigeration condensers, premium HVAC, falling-film evaporatorsModest area increase; very robust
Studded3-6×Heavy industrial economizer where fouling is severeDifficult to clean; high cost
Crimped / corrugated1.5-2.5×Specialty applicationsLimited area gain

Pricing brackets — wholesale

Order tierTotal quantityDiscountContainer utilizationLead time
Sample / small fabrication500-3,000mList priceLCL20-40 days
Mid OEM / fabrication shop5,000-30,000m5-15%20' container35-55 days
Large OEM / project order50,000-200,000m15-25%40' or 40HQ container50-90 days
Multi-unit project / power plant200,000+ m22-32%Multiple 40HQ containers60-120 days

Compliance and certification

StandardApplies toMarkets where critical
ASME SA-178 / SA-179 / SA-213 / SA-249Boiler and heat-exchanger tubes (US)USA + global oil/gas/power
ASTM B111 / B395Copper-alloy condenser tubesUSA marine and HVAC
EN 10216-2 / EN 10217-7Steel tubes for pressure purposes (EU)EU pressure equipment
EN 10305-4Cold-drawn precision steel tubesEU industrial
JIS G3461 / G3463Boiler and heat-exchanger tubes (Japan)Japan power generation
PED 2014/68/EUPressure Equipment DirectiveEU pressure systems
NACE MR0175 / ISO 15156Sour-service material qualificationOil-and-gas with H2S
ASTM A262Intergranular corrosion susceptibility (stainless)Critical chemical service
API 661Air-cooled heat exchangersRefinery air-cooled HX

Order workflow — heat exchanger tube procurement

View the full supplier profile, certifications, contact details, and complete product catalogue.

FB Material (China) — manufacturer of heat exchanger tubes for industrial applications. Spiral / helical fin tubes (carbon steel + steel fin), L-foot tension-wrapped finned tubes (aluminum or copper fin), integral low-fin tubes (machined fins), studded fin tubes, smooth seamless tubes in carbon steel (SA-178, SA-179), stainless 304L / 316L (SA-213, SA-249), copper and copper-alloy (C12200, C70600, C71500), duplex stainless (UNS S31803, S32205), super-austenitic (254 SMO, AL-6XN), and nickel-base alloy tubes (Hastelloy C-276, Inconel 600/625, Monel). Mill test certificates per ASME SA-XXX, ASTM B111/B395, EN 10216-2/10217-7, JIS G3461/G3463. PED 2014/68/EU compliance for EU pressure equipment. NACE MR0175 / ISO 15156 qualification for sour service.

  • Application analysis — define service environment (fluid composition, temperature, pressure, flow rate); map to tube type (smooth / finned) and material grade
  • Specification clarification — for each SKU define: material grade per relevant standard, OD/ID/wall thickness with tolerance, length, ends (plain / beveled / threaded), surface finish, and special tests
  • Sample order — typically 100-500m per candidate spec; verify dimensional accuracy with calipers/micrometers, material composition with spectrometer (PMI testing), wall thickness uniformity with ultrasonic gauge
  • Material qualification — for critical service, request hydrostatic test certificate per relevant standard, eddy-current testing for surface defects, intergranular corrosion test (ASTM A262 for stainless), NACE qualification for sour service
  • First commercial order — typically 5,000-30,000m for OEM trial; specify packaging (capped ends, oiled surface for carbon steel, woven cloth wrap for premium alloys)
  • Quality acceptance — incoming inspection for dimensional, surface quality, hydrostatic test, mill cert verification; document any out-of-spec tubes for supplier feedback
  • Series replenishment — quarterly orders aligned with project schedule; for ongoing OEM production, monthly drumbeat orders with safety stock 8-16 weeks consumption

Frequently asked questions

Companion guide for specialty industrial materials — transformer cores and electrical conductors.

For complementary marine industrial procurement — heat exchangers used alongside marine hydraulic systems.

Companion specialty industrial sourcing guide for adjacent equipment categories.

Source: Product images on this page are hosted on the manufacturer's official website (fbmaterial.com) and link directly back to that website. All product information was summarised from the supplier's public catalogue.

Brand mentions and trademark compliance: References to Tier-1 heat exchanger tube manufacturer brands (Wieland-Werke, Outokumpu, Sandvik Materials Technology, Tubacex, Aperam, Tenaris) are made for the sole purpose of describing functional benchmarks and supply-chain context. FB Material is not authorized by, affiliated with, or endorsed by any of these brand owners. Products are aftermarket-fit cross-reference materials manufactured under FB Material's own brand or buyer-private-label only.

Critical-service responsibility: Heat exchanger tubes used in pressure vessels, boilers, and process equipment must meet relevant codes (ASME BPVC, EN 10216, PED 2014/68/EU, etc.) with documented test certificates. Improperly specified tubes can cause catastrophic equipment failure with safety, environmental, and financial consequences. For ASME-stamped pressure vessel work, supplier must maintain active ASME quality system certification.

Material-application matching: Tube material selection for specific service environments requires engineering analysis of fluid chemistry, temperature, pressure, flow velocity, and stress conditions. Wrong material selection can cause premature failure (chloride stress corrosion in stainless, hydrogen damage in carbon steel, dezincification in brass-alloy copper, etc.). Engage qualified materials engineering for critical service environment evaluation.

Pricing & specifications: All price ranges, service-life figures, and tier definitions reflect general market observation. Real-world tube performance depends on water/process treatment, operating conditions, and maintenance practices. Confirm current pricing, MOQ, lead time, and material certifications directly with the supplier.

No middleman role: CifyChina provides supplier discovery and editorial content. All transactions occur directly between buyer and supplier through the contact channels published on the supplier's official website.

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