Tube/Coil Body: Temperature Range -50°C to 1200°C

Component Specifications

Definition

The tube/coil body is the core cylindrical or helical structural component in heating systems, designed to withstand thermal expansion, pressure, and corrosive environments while efficiently transferring heat through conduction and convection. It serves as the containment vessel for heat transfer fluids (in liquid-based systems) or houses electrical resistance elements (in electric systems), with geometry optimized for maximum surface area exposure and minimal thermal resistance.

Working Principle

Operates on principles of thermal conduction and fluid dynamics: heat generated internally (via electrical resistance or combustion) or transferred from external sources is conducted through the tube wall material, then transferred to the surrounding medium (air, liquid, or solid) via convection. In fluid-based systems, the body contains circulating media that absorbs and transports thermal energy; in electric systems, it insulates and protects heating elements while radiating heat outward.

Materials

Stainless steel (AISI 304/316 for corrosion resistance), carbon steel (ASTM A179 for high pressure), copper (C12200 for high conductivity), Inconel (for extreme temperatures), with optional ceramic coatings or polymer linings for specific applications.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	0.5-10 m
Diameter	6-50 mm
Surface Finish	Ra 0.8-3.2 μm
Wall Thickness	0.5-3.0 mm
Pressure Rating	10-300 bar
Temperature Range	-50°C to 1200°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

DIN 17457, ASME BPVC Section VIII, EN 13445

Parent Products

This component is used in the following industrial products

Heating Tube/Coil

A tubular or coiled heating element that transfers thermal energy to fluids or surfaces within a heating jacket/coil assembly.

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Engineering Analysis

Risks & Mitigation

Thermal fatigue cracking
Corrosion failure
Pressure rupture
Fouling accumulation
Electrical insulation breakdown

FMEA Triads

Trigger: Cyclic thermal stress
Failure: Fatigue cracks at weld joints
Mitigation: Implement expansion joints, use stress-relieved materials, conduct regular thermal cycling tests

Trigger: Chemical corrosion
Failure: Wall thinning and leakage
Mitigation: Select corrosion-resistant alloys, apply protective coatings, monitor fluid chemistry

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.1 mm diameter, ±0.05 mm wall thickness, ±1° straightness per meter

Test Method

Hydrostatic pressure testing (1.5x operating pressure), eddy current inspection, radiographic examination, thermal cycling validation

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Tube/Coil Body

Manufacturer profiles associated with Tube/Coil Body.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What factors determine material selection for tube/coil bodies?

Material selection depends on operating temperature, pressure, corrosion environment, thermal conductivity requirements, and cost. Stainless steel offers corrosion resistance, copper provides superior conductivity, while specialty alloys handle extreme conditions.

How does tube geometry affect heating efficiency?

Smaller diameters increase pressure drop but improve heat transfer coefficients; helical coils enhance turbulence and surface area compared to straight tubes; wall thickness balances structural integrity against thermal resistance.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Tube/Coil Body