Zhejiang Seamless Pipe Co., Ltd.
                                                                                                           
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ASTM A789 S32750 Super Duplex Seamless Tube 6m Length 1/4"-2" OD for Heat Exchanger Applications

Price Negotiable
Price: Above 2usd/kg
MOQ: 1pc
Delivery Time: 2 weeks/container
Brand: SMLSCO
Product Description
Product Overview

ASTM A789 S32750 super duplex seamless tubes manufactured through cold drawing process, specifically designed for heat exchanger applications. Available in 6-meter fixed lengths with comprehensive quality certifications.

Technical Specifications
Parameter Value
Product Name Super Duplex Seamless Tube (Heat Exchanger Tube)
Standard ASTM A789, EN 10216-5
Material Grade S32750 (F53), 1.4410
Outside Diameter (OD) 1/4" - 2" (6mm - 50.8mm)
Wall Thickness (WT) 0.035" - 0.22" (0.89mm - 5.59mm)
Length 6 meters (Fixed Length) or as required
Process Cold Drawing
Heat Treatment Bright Annealed (BA)
Inspection 100% Eddy Current Test, PMI
ASTM A789 S32750 super duplex seamless tube with clean surface finish and precise dimensions
Material Properties

S32750 super duplex stainless steel combines austenitic and ferritic properties, delivering exceptional strength and superior corrosion resistance. This material excels in chloride-containing environments with enhanced resistance to pitting and crevice corrosion. Ideal for demanding applications including offshore engineering, petrochemical processing, seawater desalination, and heat exchanger systems.

Quality & Manufacturing Advantages
  • Over 200 tons of stainless steel seamless tube inventory (1/4"-2")
  • Standard products delivered within 2 weeks
  • Bright annealing process ensures clean, residue-free inner walls
  • 100% eddy current testing and PMI certification
  • PED, ISO, and AD2000 certified products
  • Zero-defect delivery guarantee
Quality Control System

SMLSCO implements rigorous three-step inspection: raw material re-inspection, production process control, and 100% pre-shipment inspection. All heat exchanger tubes undergo dimensional verification, surface finish assessment, mechanical property testing, PMI spectral analysis, and eddy current testing. Complete traceability records and pre-shipment documentation provided.

Packaging & Protection

Multi-layered protective packaging includes individual bubble wrap or foam sleeves, plastic end caps, and secure packing in plywood crates or steel-strapped pallets for safe ocean and land transportation.

S32750 seamless tubes securely packaged with protective wrapping and end caps in wooden crates
Frequently Asked Questions
Q1: The title mentions 6-meter fixed lengths (6m). Can you provide other lengths or cutting services?
6 meters is our standard stocked length with substantial inventory. SMLSCO also offers precise custom cutting services for specific project requirements. Please provide exact length and tolerance specifications when requesting quotes.
Q2: What advantages does S32750 super duplex stainless steel offer compared to austenitic stainless steels like 316L?
S32750 super duplex stainless steel provides:
  • Exceptionally high strength (nearly double that of 316L)
  • Superior corrosion resistance in chloride-containing environments
  • Significantly enhanced resistance to pitting and crevice corrosion
Ideal for demanding heat exchanger applications in marine engineering, chemical processing, and desalination.
Q3: What markings are present on the tubing I receive?
Each S32750 tube is clearly marked with SMLSCO brand logo, ASTM A789 standard, material grade (S32750), specifications (OD x WT x L), and unique heat treatment batch number according to ASTM A789 requirements.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Zhejiang Seamless Pipe Co., Ltd.
Location No. 501, Changsheng South Road, Jiaxing, Zhejiang, China
Contact Person Lee

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