Spezilla Tube Co., Ltd. (Shanghai)

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1.446 Duplex Stainless Steel Pipe , Super Duplex Pipe Seamless Corrosion Resistance

Very competitive price and the tubes are well polished, we are very satisfied with Spezilla from our cooperation since year 2010.

—— Nathalie Gulli - Mexico

Spezilla supports our group very well, and now we are approved supplier of goverment, they are reliable and flexible! Spezilla always answers!

—— Jaime Arias - Argentina

Good quality, fast delivery, Spezilla has been supplying heat exchanger tubes for our projects since 2008, we really appreciate your support!

—— Massimiliano Rossi - Italy

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1.446 Duplex Stainless Steel Pipe , Super Duplex Pipe Seamless Corrosion Resistance

China 1.446 Duplex Stainless Steel Pipe , Super Duplex Pipe Seamless Corrosion Resistance supplier
1.446 Duplex Stainless Steel Pipe , Super Duplex Pipe Seamless Corrosion Resistance supplier 1.446 Duplex Stainless Steel Pipe , Super Duplex Pipe Seamless Corrosion Resistance supplier 1.446 Duplex Stainless Steel Pipe , Super Duplex Pipe Seamless Corrosion Resistance supplier 1.446 Duplex Stainless Steel Pipe , Super Duplex Pipe Seamless Corrosion Resistance supplier

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Product Details:

Place of Origin: CHINA
Brand Name: SPEZILLA
Certification: ISO9001:2008, PED 97/23/EC
Model Number: Seamless Tube

Payment & Shipping Terms:

Minimum Order Quantity: Negotiation
Price: Negotiation
Packaging Details: PLY-WOODEN CASE / BUNDLE WITH PLASTIC CAP
Delivery Time: 25 DAYS
Payment Terms: T/T or L/C
Supply Ability: 1000 TONS / MONTH
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Detailed Product Description
Materials: S31803/2205/1.4462 Product Name: Duplex Stainless Steel Tube
Standard: ASME SA789 O.D.: 5/8"-2"
W.T.: BWG18-BWG14 Length MAX: 12000MM Max.
Pipe Finish: TIG Welded Type: Welded
Shape: Round Surface: Bright Annealed
Application: Heat Exchanger Package: Wooden Case

1.4462 Duplex Stainless Steel ASTM A789 S31803 Duplex Stainless Steel Tube

 

 

 

Duplex 2205, also known as UNS S32205, is a nitrogen-enhanced stainless steel. Users choose Duplex 2205 for its excellent corrosion resistance along with its high strength. It is important to note that Duplex 2205, offers much higher levels of corrosion resistance than most other austenitic stainless steels. Other benefits include:

  • High resistance to pitting and crevice corrosion
  • Excellent in most caustic environments
  • Good weldability

To be considered Duplex 2205, a stainless steel must have a chemical composition that includes:

  • Cr 21-23%
  • Ni 4.5-6.5%
  • Mn 2% Max
  • Mo 2.5-3.5%
  • N 0.08-0.20%
  • P 0.30% max
  • C 0.030% max

 

The advantage of a duplex structure is that it combines the favorable qualities of a ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance).

Usage of 2205 Duplex stainless steel should be limited to temperatures below 600° F. Extended elevated temperature exposure can embrittle 2205 stainless.

 

 

Specifications:

 

UNS S31803

ASME SA-182 (F51), SA-240, SA-798, SA-790, SA-815
ASTM A182 (F51),A240, A276, A479, A789, A790, A815, A928, A988
SAE J405

 

UNS S32205

ASME SA-182 (F60), SA-240, SA-798, SA-790, SA-815
ASTM A182 (F60), A240, A276, A479, A480, A798, A790, A815, A928, A988
SAE J405

 

Specifications of Duplex Stainless Steel Welded Tube

 

1. Standard: ASTM ASME
2. Grade: 630 / 631 / 2205 / 2507 / 17-4PH
ASTM A789, ASTM A790, ASTM A450, ASTM A530,
GB/T 14976, GB/T 14975, GB/T 13296, etc
3. OD: 8mm-1000mm
4. Wall thickness: 0.3mm-30mm
5. Length: max.18000mm or as demand

6. Surface finish: Polishing (180#,220#,240#,320#400#,600#), Hairline, acid pickled, etc.

 

 

Features

  • High resistance to chloride stress corrosion cracking
  • Chloride pitting and crevice corrosion resistance superior to 317L stainless
  • Good general corrosion resistance
  • High strength
  • Good sulfide stress corrosion resistance
  • Useful up to 600°F

Applications

  • Chemical process vessels, piping, and heat exchangers
  • FGD scrubber systems
  • Pulp mill digesters, bleach washers, chip presteaming vessels
  • Food process equipment
  • Oil field piping, heat exchangers

 

 

Specifications:

 

Specifications (ASTM/ASME) Duplex Stainless Steel Pipe
Alloy UNS Designation Material
Specification
Tubing
Specification
Pipe
Specification
2205 S31803/S32205 A 240/SA-240 A 270 A 790/SA-790
      A 789/SA-789 A928/SA928

 

Chemical Compositions:

 

Chemical Composition (%) Duplex Stainless Steel Pipe
Alloy 2205 2205
UNS Designation S31803 S32205
Carbon (C) max. 0.030 0.030
Manganese (Mn) max. 2.00 2.00
Phosphorus (P) max. 0.030 0.030
Sulfur (S) max. 0.020 0.020
Silicon (Si) max. 1.00 1.00
Chromium (Cr) 21.0 - 23.0 22.0 - 23.0
Nickel (Ni) 4.5 - 6.5 4.5 - 6.5
Molybdenum (Mo) 2.5 - 3.5 3.0 - 3.5
Nitrogen (N) 0.08 - 0.20 0.14 - 0.20
Iron (Fe) Balance Balance

 

Steel grade 45% MgCl at 155oC 40% CaCl2 at 100oC 40% CaCl2 at 100oC, 0.9 x Rp0.2 25% NaCl, pH 1.5, 106oC 25% NaCl, 106oC 1500 ppm Cl- at 100oC
4307 Probable Probable Probable Probable Probable Probable
4404 Probable Probable Probable Probable Possible Probable
2201 Probable Not probable Not probable Not probable Not probable Not probable
2304 Probable Not probable Not probable Not probable Not probable Not probable
2404 Probable Possible Not probable Not probable Not probable Not probable
2205 Probable Not probable Not probable Not probable Not probable Possible
2507 Probable Not probable Not probable Not probable Not probable Not probable
254 SMO Probable Not probable Not probable Not probable Not probable Not probable

1.446 Duplex Stainless Steel Pipe , Super Duplex Pipe Seamless Corrosion Resistance

Contact Details
Spezilla Tube Co., Ltd. (Shanghai)

Contact Person: Will Ma

Tel: +86 13918539222

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