High Pressure 321 Steel Tube for Waste Heat Boiler with Flue Gas Resistance

Name: High Pressure 321 Steel Tube for Waste Heat Boiler with Flue Gas Resistance
Brand: CNB NEW MATERIAL (TIANJIN) CO., LTD.
SKU: 2311355365

Tianjin, ChinaCNB NEW MATERIAL (TIANJIN) CO., LTD.

US$600.00

1 Ton

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Negotiable

Warranty

Variable

Model NO.

CNB-SP

Type

Welded

Technique

Cold Rolled

Material

Carbon Steel

Surface Treatment

Polished

Usage

Hydraulic/Automobile Pipe

Section Shape

Round

Application

Shell & Tube Heat Exchanger, Condenser, Boiler

Inventory

in Stock

Od Range

6mm-76mm, Wall: 0.5mm-5.0mm

Material Grade

AISI 321, 321H, 304, 304L, 316L, 2205

Transport Package

Export Seaworthy Package

Specification

Custom

Trademark

CNB

Origin

China

HS Code

73063090

Production Capacity

50000PCS/Month

Key features

2205 steel tube combines high strength with exceptional chloride SCC resistance, ideal for seawater-cooled heat exchangers, offshore platform coolers, and desalination plant brine heaters.

Custom U-Bend Steel Tube Fabricated to Your Tube Sheet Drawing

Titanium-Stabilized 321 Stainless Steel Tube for High-Temperature Heat Exchangers

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceCooperated with Fortune 500Multi-language Pioneer

CNB NEW MATERIAL (TIANJIN) CO., LTD.

Tianjin, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 2 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤4.18h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryCNB NEW MATERIAL (TIANJIN) CO., LTD. is a China-based trading company established in 2023 with three employees. It reports quality assurance, raw-material traceability, written inspection instructions, in-stock capability, and customization from samples or designs. The company states that 90% of sales are exports and cites international companies as fixed raw-material customers, although no specific case details are provided. Service reach is limited: it reports no overseas agents or branches, overseas warehouses, overseas showroom, offline trade-show participation, or overseas service countries. R&D evidence is weak, with no new product information in the past year, no ODM, no SDK, and no branded OEM capability. Financial information provided shows zero operating revenue and zero profit-related figures for the stated periods, requiring caution. Outsourcing procedures, manufacturing-capacity contracts, corrective-action records, complaint-handling records, and supplier-assessment records are incomplete or...

Financial creditThe submitted financial slices report zero operating revenue and zero profit-related figures for the stated periods, while current ratios are also reported as zero. These figures do not demonstrate financial strength and indicate a material need for verification before relying on the supplier’s financial capacity.

R&D capabilityThe supplier reports no new product information during the past year, no ODM service, and no available SDK. Although it can customize from samples and designs, the provided evidence does not support strong independent R&D or innovation capability.

Customization capabilityCustomization from samples and customization from designs are explicitly available through both design services and R&D-related services. This supports the supplier’s ability to handle customer-specific requirements, although no evidence is provided regarding production scale or technical complexity.

Client casesThe supplier states that it has become a fixed raw-material supplier to Panasonic, Toyota, Honda, IKEA, and Komatsu, and reports that 90% of total sales are exports. These named customer claims provide positive case evidence, but the slices do not include order scope, duration, product details, or independently verifiable references.

Product Q&A

Q:Why choose 321 steel tube instead of 304 for a high-temperature heat exchanger?

321 steel tube is titanium-stabilized, which prevents chromium carbide precipitation at grain boundaries during welding or high-temperature service between 500 Celsius and 900 Celsius. Standard 304 can suffer from intergranular corrosion (weld decay) in this temperature range, so 321 steel tube provides significantly longer service life and better reliability for superheaters and process heat exchangers.

Q:Can you supply U-bend steel tubes to our heat exchanger tube sheet drawing?

Yes, we supply U-bend steel tubes bent to your specified bend radius, leg length, and tube pitch. Our CNC bending equipment ensures consistent bend geometry and wall thinning well within ASME and TEMA limits. Both 304/316L and 321/2205 steel tubes can be supplied in U-bend configuration with full dimensional inspection and hydrostatic testing performed after bending.

Q:What testing do you perform on steel tubes for heat exchanger service?

Every steel tube for heat exchanger service undergoes 100% non-destructive testing-eddy current for wall integrity and longitudinal defects, and hydrostatic testing for leak detection. Additional ultrasonic testing, PMI (Positive Material Identification), and intergranular corrosion testing per ASTM A262 Practice E (for 321) are available upon request.