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SS 1.4462 Super Duplex Tubing ASTM A928 Good Weldability Polished Surface

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SS 1.4462 Super Duplex Tubing ASTM A928 Good Weldability Polished Surface

China SS 1.4462 Super Duplex Tubing ASTM A928 Good Weldability Polished Surface supplier
SS 1.4462 Super Duplex Tubing ASTM A928 Good Weldability Polished Surface supplier SS 1.4462 Super Duplex Tubing ASTM A928 Good Weldability Polished Surface supplier SS 1.4462 Super Duplex Tubing ASTM A928 Good Weldability Polished Surface supplier SS 1.4462 Super Duplex Tubing ASTM A928 Good Weldability Polished Surface supplier

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Product Details:

Place of Origin: CHINA
Brand Name: SPEZILLA
Certification: ISO9001:2008
Model Number: UNS S31803, S32205, S32750, S32760,1.4462

Payment & Shipping Terms:

Minimum Order Quantity: Negotiation
Price: Negotiation
Packaging Details: PLY-WOODEN CASE / BUNDLE WITH PLASTIC CAP
Delivery Time: 10 DAYS
Payment Terms: T/T or L/C
Supply Ability: 1000 TONS / MONTH
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Detailed Product Description
Product Name: Duplex Stainless Steel Tube Specification: ASTM A928/A928M
Grade: UNS S31803, S32205, S32750, S32760,1.4462 Size Range: 8'' - 20''
Schedule: SCH 10S & 40S Length: SRL, Fixed 6 Mtr
Type: Welded Shape: Round
Package: Wooden Case Application: Heat Exchanger

SS 1.4462 Welded Steel Tube ASTM A928 UNS S31803 Super Duplex Stainless Steel Pipe

 

 

 

Description:

 

Duplex & Super Duplex Welded Stainless Steel Pipe appeared in the marketplace due to the need to combat the shortcomings of austenitic and ferritic steels. It was found that a mixture of these two materials resulted in higher strength, reduced weight, good weldability and increased resistance to stress corrosion cracking.

 

Unlike similar steels, duplex also displays an improved resistance to localised corrosion, particularly pitting, crevice corrosion and stress corrosion cracking. Due to its ferritic qualities, duplex steel also shows very good resistance to stress corrosion cracking when compared to standard austenitics. In some cases, the strength of duplex steel can be up to double that of the most commonly used grades of stainless steel.

Another benefit of duplex steels is that because it has a lower nickel and molybdenum content than other austenitic stainless steels, it can prove to be a more cost effective option due to its lower alloy content.

 

These benefits clearly show why Duplex steels have become popular in applications such as pressure vessels, cooling pipes and storage tanks.

 

Duplex becomes brittle at extreme temperatures so its use is normally restricted to a maximum temperature of 300 degrees. Duplex also shows signs of embrittlement at –50 degrees.

 

 

Advantages:

 

1. Stronger than 300 series stainless steel which also brings weight advantages


2. High resistance to pitting, crevice corrosion and stress corrosion cracking


3. Higher heat conductivity and lower thermal expansion than austenitic steels

 


Applications:

 

1. Pipes for production and transportation of oil and gas


2. Structural and mechanical components


3. Heat exchangers


4. Cooling pipes

 

 

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

 

Specifications (ASTM/ASME) Super Duplex Stainless Steel Pipe
Alloy UNS Designation Minimum Tensile Strength
Minimum Yield
Strength
0.2% Offset
Minimum Percent (%)
Elongation in
2 inches (50.8 mm)
(psi) (MPa) (psi) (MPa)
2507 S32750 116,000 800 80,000 550 15
 

 

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

 

Chemical Composition (%) Super Duplex Stainless Steel Pipe
Alloy 2507
UNS Designation S32750
Carbon (C) max. 0.030
Manganese (Mn) max. 1.20
Phosphorus (P) max. 0.035
Sulfur (S) max. 0.020
Silicon (Si) max. 0.80
Chromium (Cr) 24.0 - 26.0
Nickel (Ni) 6.0 - 8.0
Molybdenum (Mo) 3.0 - 5.0
Nitrogen (N) 0.24 - 0.32
Copper (Cu) max. 0.50
Iron (Fe) Balance
 

 

Mechanical Property:

 

Typical Physical & Mechanical Properties - Annealed Condition (Room Temperature)
Duplex Stainless Steel Pipe
Alloy UNS Designation Minimum Tensile Strength
Minimum Yield
Strength
0.2% Offset
Minimum Percent (%)
Elongation in
2 inches (50.8 mm)
(psi) (MPa) (psi) (MPa)
2205 S31803 90,000 620 65,000 450 25
2205 S322051 95,000 655 70,000 485 25
2205 S322052 95,000 655 65,000 450 25
 
 
Super Duplex Stainless Steel Pipe
Alloy UNS Designation Minimum Tensile Strength
Minimum Yield
Strength
0.2% Offset
Minimum Percent (%)
Elongation in
2 inches (50.8 m
m)
(psi) (MPa) (psi) (MPa)
2507 S32750 116,000 800 80,000 550 15

 

SS 1.4462 Super Duplex Tubing ASTM A928 Good Weldability Polished Surface 

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

Contact Person: Will Ma

Tel: +86 13918539222

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