Can we customize length and pipe end groove?

Fixed-length cutting, single/double side beveling and deburring processing are all available.

Is the surface treated for anti-rust?

Finished pipes go through pickling and passivation treatment to form a dense protective oxide film on the surface.

Does the material comply with boiler pressure pipeline standards?

Fully conform to ASTM and national pressure pipeline specifications, can be used for certified boiler projects.

What is your minimum order quantity?

Flexible MOQ, small test samples and full container bulk orders are both supported.

How do you pack the pipes for export?

Both ends fitted with plastic anti-dust caps, wrapped in waterproof film, bundled with steel strips for anti-collision and anti-rust.

Premium 321 Stainless Steel Seamless Pipe for Boilers

Name: Premium 321 Stainless Steel Seamless Pipe for Boilers
Brand: Tianjin Zengze Steel Trading Co., Ltd.
SKU: 1941805512

Tianjin, ChinaTianjin Zengze Steel Trading Co., Ltd.

US$5,000.00

1-49 Tons

US$4,800.00

50-99 Tons

US$4,600.00

100+ Tons

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Quality Objection Within 10 Days Since Receiving

Warranty

5 Years

Model NO.

321

Type

Seamless

Technique

Hot Rolled

Material

Stainless Steel

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose

Section Shape

Round

Diameter

8-660mm

Thickness

1-150mm

Length

as Required

Steel Grade

200 Series, 300 Series, Duplex, 904L 254smo

Loading Port

Tianjin, Shanghai

Place of Origin

Shandong, Jiangsu

Stock

Normal Size in Stock, Special Size as Customized

Delivery

Within 7 Days for Stock Cargo

Packing

Standard Exporting Package

Transport

by 20'gp or 40'gp

Processing

as Customized (Cutting, Drilling.Ect)

Mtc

Along with The Shipping Docs.

Test

BV, SGS Is Available

Stock Quantity

More Than 3000tons

Payment

T/T, L/C

Transport Package

Standard Exporting Package

Specification

as required

Trademark

Zengze

Origin

Jiangsu

HS Code

7304499000

Production Capacity

5000tons Per Months

Key features

Titanium-stabilized 321 grade, effectively avoid intergranular corrosion after welding and long-term high-temperature operation

100% seamless hot rolled forming, high structural integrity, safe for high-pressure boiler fluid delivery

Outstanding high-temperature oxidation resistance and creep strength, stable performance under 600-temperature extreme working environment

Strong thermal fatigue resistance, adapt to frequent heating and cooling cycles of heat exchange equipment

Superior weldability, no complex post-weld heat treatment needed, convenient for on-site boiler pipeline assembly

Strict non-destructive testing and hydraulic pressure test, fully meet pressure vessel and boiler pipeline safety codes

Uniform wall thickness and stable mechanical properties, reduce hidden dangers of local stress concentration

Support deep processing: U-bending, grooving, fixed-length cutting and pickling passivation

Complete outer diameter and wall thickness specifications, cover small coil tubes to large main boiler pipelines

Professional anti-rust export packaging, prevent oxidation and mechanical damage in transit

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceFast Delivery

Tianjin Zengze Steel Trading Co., Ltd.

Tianjin, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 17 Years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤3.67h CertifiedTerms of Payment: LC, T/T, D/P, etc.

About Our Factory & Business Background

AddressBeichen District Beicang Way Names Material, Tianjin, China

Plant Area50 square meters

Number of Employees2

Registered Capital5,000,000 RMB

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity100 Kg

Supply Chain Partners10

Our Production Capability & Technical Expertise

Main ProductsSteel And Laser Cladding Machine

R&D Engineers1 people

Our Industry Experience & Global Business Record

Year of Establishment2007-12-11

Main MarketsEurope, Domestic, Asia

Repeat Buyers Choice80%~100%

Number of Foreign Trading Staff1

Overseas Agent/BranchNo

New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Cooperated with Fortune 500No

Product Q&A

Q:What is the biggest difference between 321 and 304 stainless steel pipe?

321 contains titanium element, anti-intergranular corrosion ability is much stronger, specially for long-term high temperature and frequent welding boiler working conditions, 304 cannot meet such harsh environment.

Q:Can this pipe work continuously under high temperature?

Yes, it keeps stable mechanical performance under working temperature up to 600-temperature, good anti-oxidation and anti-creep property.

Q:Are they seamless tubes?

All products are fully hot rolled seamless pipes, no welding seam, safe for high-pressure boiler medium transportation.

Q:Do you do U-bending for heat exchanger coils?

We support CNC precision U-bending, size strictly according to heat exchanger drawing requirements.

Q:What inspection will you do before delivery?

Each batch passes hydraulic pressure test, eddy current non-destructive testing, intergranular corrosion test and material composition inspection.