Nascent Fittings Inc.·Duplex Steel
Duplex Steel COIL FORM TUBE
Heat exchanger & process tubes in SS, CS, copper alloy & nickel. Seamless/welded, ASTM grades with MTCs and global export packing.
- Material
- Duplex Steel
- Size
- Instrument to heat-exchanger OD
- Standard
- ASTM
- Corrosion
- Excellent
About
Duplex Steel Tubes
Product overview combined with Duplex Steel material context for project selection.
Precision tubes for heat exchangers, instrumentation and process lines. Nascent supplies seamless and welded tubes in stainless, alloy, copper alloys, duplex and nickel grades with controlled OD, wall and finish for critical service.
Tubes are offered to ASTM / ASME / EN dimensional and material requirements, with MTC support for boilers, condensers, coolers and sanitary or high-purity applications as specified.
Manufacturing note
Coil form tubes are used in high heat applications such as heat exchangers, condensers and in superheaters. The pipes are of smaller dimensions and are used in coils. Coil straighteners are used to install the coils in place. Coil-shaped tube Heat Exchanger tubes are designed specifically for use in heat exchangers. Coiling the tubes lengthens the material flow length within a given space. Nascent fittings are one of the leading Stainless Steel Coil Tubing Manufacturers and we produce these coils in different material grades. Coil tube is the most cost-effective way for many applications because the raw material is cheaper and widely available than the other material grades. Coil tubes are of high quality and have less absolute roughness, so that they could be used with accuracy. The Coiled tube is used along with other types of pipes. Coiled tube is seamless due to the smaller diameters and fluid flow requirements. The Coil form Tube is placed under warm water, hot air, or inside a heating chamber to accelerate the heating of the fluids inside the coil. The coil tubing must have precise dimensions, be resistant to corrosion, and be able to withstand high temperatures.
Typical applications
- Oil & Gas
- Petrochemical
- Chemical Processing
- Power Generation
- Marine
- Desalination
Configurations
Duplex Steel Tubes types
Open a type for drawings-aligned specifications.
Material scope
Duplex Steel specification
Dimensional and grade range typically supplied for COIL FORM TUBE in this material.
- Grade
- SA 179, SA / ASTM A 210 Gr. A 1, BS 3059 Gr. 360 / 440
- Grade
- ASTM A 213 -T-11, T-12, T-22, T-5, T-9 etc.
- Grade
- Duplex steel: UNS S32205, S31803
- Grade
- Super Duplex Steel: UNS S32750, S32760
- Thickness
- 0.8mm – 10mm – All Guage: 10 SWG/BWG to 22 SWG/ BWG
Duplex Steel grades
Available grades for Tubes
Drawn from the Duplex Steel catalog and this product’s material specification.
F44
UNS S31254
High alloy duplex stainless steel.
F45
UNS S31803
Duplex stainless steel with excellent corrosion resistance.
F51
UNS S31803
Most common duplex grade.
F60
UNS S32205
High strength duplex steel.
F61
UNS S32550
Premium duplex steel for aggressive service.
UNS S31803
UNS S31803
Standard duplex stainless (22Cr) commonly supplied to ASTM A815 / A182 F51.
Best for · General duplex piping
UNS S32205
UNS S32205
Modern dual-certified duplex chemistry aligned with F60 / 2205 practice.
Best for · High-strength duplex service
UNS S32750
UNS S32750
Super duplex 25Cr grade for severe chloride and high-strength applications.
Best for · Super duplex chloride resistance
UNS S32760
UNS S32760
Super duplex with tungsten additions for aggressive seawater and process media.
Best for · Aggressive seawater and process fluids
Also available in
Other materials for this product
View Tubes in another material grade family.
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Nickel Alloy
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Cupro Nickel
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ViewCompliance
Standards & certificates
Specifications and documentation typically referenced for this product line — details from our shared compliance catalog.
Standards
5ASTM
ASTMASTM International material and product specifications.
- Scope
- Umbrella reference for ASTM material grades used across the catalog.
- Applies To
- Carbon, alloy, stainless, duplex and nickel-alloy piping products
ASME
ASMEAmerican Society of Mechanical Engineers — boiler, pressure vessel and piping codes.
- Scope
- Umbrella reference for ASME dimensional and material standards used on this product line.
- Applies To
- Flanges, fittings, pipes and related pressure components
EN
CENEuropean Norms for materials, flanges and fittings.
- Scope
- Umbrella reference for EN material and flange standards.
- Applies To
- EU-specified piping materials and PN flanges
ASTM A182
ASTMForged or rolled alloy and stainless steel pipe flanges, fittings, valves and parts.
- Scope
- Forged and rolled stainless, alloy and duplex steel components for high-temperature service.
- Applies To
- Flanges, fittings, valves and pressure parts
- Typical Grades
- F304/L, F316/L, F11, F22, F91, F51/F60 and related
ASME SA182
ASMEASME equivalent of ASTM A182 for forged stainless and alloy components.
- Scope
- Boiler and pressure vessel code adoption of ASTM A182 material requirements.
- Related
- ASTM A182
Certificates
5EN 10204 3.1
Mill test certificate with inspection by the manufacturer’s authorized inspection representative, independent of manufacturing.
- Type
- Inspection document (MTC)
- Scope
- States chemical analysis, mechanical test results and heat / lot identification for the supplied material.
- Documentation
- EN 10204 Type 3.1
- Benefit
- Provides traceable material evidence required on most industrial RFQs.
NACE MR0175
Materials for use in H₂S-containing environments in oil and gas production.
- Type
- Service / sour-service requirement
- Scope
- Limits hardness, microstructure and material selection for sulfide stress cracking resistance.
- Applies To
- Carbon, alloy and CRA piping products ordered for sour service
- Benefit
- Supports upstream oil & gas projects specifying sour-service compliance.
ISO 9001
Quality Management System certification.
- Type
- Quality Management System
- Scope
- Demonstrates a documented QMS covering process control, traceability and continual improvement across manufacturing and supply.
- Benefit
- Assures buyers of consistent product quality and controlled production practices.
- Issued As
- Third-party accredited certificate
PED
Pressure Equipment Directive compliance for equipment placed on the EU market.
- Type
- Regulatory conformity
- Scope
- Design and conformity assessment requirements for pressure equipment and assemblies in the European Union.
- Benefit
- Enables supply of pressure-rated components into EU projects when PED conformity is required.
- Related
- CE marking / Notified Body routes as applicable
IBR
Indian Boiler Regulations approval for boiler-quality piping materials and components.
- Type
- Regulatory approval
- Scope
- Materials and components intended for use under Indian boiler installations.
- Benefit
- Required for many power and process projects under IBR jurisdiction in India.
People also ask
Questions about Tubes
Nascent Fittings Inc. answers common buyer questions for this line.
Does Nascent Fittings Inc. manufacture Tubes?+
Yes. Nascent Fittings Inc. manufactures and supplies Tubes for industrial piping projects, with material grades and sizes aligned to project specifications.
Can Nascent Fittings Inc. export Tubes worldwide?+
Yes. We export Tubes globally with standard export packaging, material test certificates, and documentation support for international shipments.
What materials are available for Tubes?+
Tubes is available in carbon steel, alloy steel, stainless steel, duplex, nickel alloys, copper alloys, aluminium, titanium and other project-specific materials as required.
Need pricing for Duplex Steel COIL FORM TUBE?
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