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Home > Products > Air Cooled Condenser > ASME SA789 S31803 1.4462 Duplex Steel Seamless Tube

ASME SA789 S31803 1.4462 Duplex Steel Seamless Tube

  • ASME SA789 S31803 1.4462 Duplex Steel Seamless Tube
  • ASME SA789 S31803 1.4462 Duplex Steel Seamless Tube
  • ASME SA789 S31803 1.4462 Duplex Steel Seamless Tube
  • ASME SA789 S31803 1.4462 Duplex Steel Seamless Tube

ASME SA789 S31803 1.4462 Duplex Steel Seamless Tube

    Payment Type: L/C,T/T,D/P,Money Gram,Western Union
    Terms of Trade: FOB,CFR,CIF,EXW
    Delivery Time: 30 Days
    Packaging: Ply-wooden Case /Iron Case/ In Bundles
    Brand: YUHONG
    Transportation: Ocean,Land,Air
    Place of Origin: China
    Supply Ability: 800 Ton / Month
    Certificate: ABS, GL, DNV, NK, PED, AD2000, GOST 9941

Basic Info

Model No.: Duplex Tube

Product Description

ASTM A789 / ASME SA789 UNS S31803 1.4462 Duplex Stainless Steel Seamless Tube With High Strength

Standard : ASTM/ASME A/SA789, A/SA790, A/SA928, DIN17456/17458, EN10216-5.

We supply tubes according to the customers' requirement.

Material Grade : UNS S31803, S32205, S32101, S32304, S32750, S32760, 1.4462, 1.4410 etc...

Size Range:

Stainless Steel Seamless Tube

ASTM A789/A789M: OD: Φ12.7mm-Φ203mm; WT:0.5mm-6.35mm

Stainless Steel Seamless Pipe

ASTM A790/A790M: OD: Φ6mm-Φ325mm; WT:0.5mm-30mm

Stainless Steel Welded Tube

ASTM A789/A789M: OD: Φ12.7mm-Φ203mm; WT:0.5mm-4.0mm

Stainless Steel Welded Pipe

ASTM A790/A790M: OD: Φ10mm-Φ2000mm; WT:0.5mm-40mm (OD≤630mm for single seam; ODΦ630mm For circumferential seam)

ASTM A928/A928M: OD: Φ10mm-Φ406mm; WT:0.5mm-10mm

Material Grade:

UNS

EN

DIN

C %

Cr%

Ni%

Mo%

N%

Other %

S31803

1.4462

X2CrNiMoN22-5-3

0.030max

21.0-23.0

4.5-6.5

2.5-3.5

0.08-0.20

/

S32205

1.4462

X2CrNiMoN22-5-3

0.030max

22.0-23.0

4.5-6.5

3.0-3.5

0.14-0.20

/

S32101

1.4162

0.040max

21.0-22.0

1.35-1.70

0.10-0.80

0.20-0.25

Cu 0.10-0.80

S32304

0.030max

21.5-24.5

3.0-5.5

0.05-0.60

0.15-0.20

Cu 0.05-0.60

S32750

1.4410

X2CrNiMoN25-7-4

0.030max

24.0-26.0

6.0-8.0

3.0-5.0

0.24-0.32

Cu 0.50max

S32760

0.050max

24.0-26.0

6.0-8.0

3.0-4.0

0.20-0.30

Cu 0.50-1.00

Mechanical Property:

UNS


Tensile Strength
Min, Mpa



Yield Strength
Min, Mpa


Elongation in 2 in Or 50mm Min, %


Hardness Max,
HRC


S31803

620

450

25

30

S32205

655

485

25

30

S32101

700

530

30

30

S32304

690

450

25

30

S32750

800

550

15

32

S32760

750

550

25

32


UNS S32760, UNS S31803, UNS S32750, UNS S31254

UNS S32154 is austenitic 6% molybdenum Super Duplex stainless steel used widely in seawater cooled power plant condensers.

The first high-performance austenitic stainless steel designed specifically to use nitrogen for added corrosion resistance, S31254 has a superior resistance to chloride pitting, crevice corrosion and stress corrosion cracking, especially in water that contains chloride.

Uses of UNS S31254 include condenser tubes, heat exchange tubes, tubesheets and service water piping in nuclear power plants.

UNS S32760 is a Super Duplexstainless steel equivalent to A182 F55 with a microstructure of 50:50 austenite and ferrite. The high chromium and molybdenum content of Super Duplex makes S32760 extremely resistant to uniform corrosion by both organic and inorganic acids – especially those containing chloride.

The higher than average molybdenum and chromium content also gives UNS S32760 greater heat resistance quality and is also designed, as a Super Duplex alloy stainless steel, to feature high tensile & yield strength, pitting resistance, strong weldability, resistance to stress corrosion cracking, erosion & crevice corrosion and corrosion fatigue and good toughness.

UNS S32760 is used in equipment for the oil & gas industry, on offshore platforms, in heat exchangers, chemical processing, pressure vessels and boilers as well as in the petrochemical industry and desalination plants, including seawater piping.

UNS S32750 is the most common Super Duplex grade, equivalent to A182 F53, combining high tensile and impact strength, with a low co-efficience for thermal expansion and a high thermal conductivity.

The high chromium (25%), molybdenum (4%) and nitrogen levels provide excellent resistance to pitting, crevice and general corrosion, meaning that UNS S32750 is designed for use in demanding applications which require exceptional strength and corrosion resistance such as chemical process, petrochemical and offshore platforms and seawater equipment.

Other uses of S32750 include heat exchangers, pressure vessels and boilers, fire-fighting systems, desalination plants, high pressure RO-plant and seawater piping, absorber towers, ducting & piping and power industry FGD systems.

UNS S32750 also contains excellent mechanical properties, meaning that a light gauge of S32750 can be used to achieve the same design strength of a thicker nickel alloy – saving both weight and overall cost of fabrication.

UNS S31803 is a Duplex stainless steel equivalent to A182 F51 (1.4462) created as a austenitic ferretic iron chromium-nickel alloy with molybdenum addition.

Designed to combine improved resistance to stress corrosion cracking, pitting and crevice corrosion, S31803 is roughly double the strength of standard austenitic stainless steel. This means that UNS S31803 can be used successfully as an alternative to standard stainless steel specifications where a higher strength and higher stress corrosion resistance is required.

As Duplex material, UNS S31803 offers the benefits of high strength and corrosion resistance as well as low thermal expansion, higher heat conductivity than austenitic steels, high energy absorption and good workability and weldability.

Uses of UNS S31803 include forged or rolled alloy steel pipe flanges, primarily for the petrochemical industry, forged fittings and valves for high temperature application, heat exchangers, chemical tanks, refineries, compressor parts for seawater desalination plants and offshore pressure vessel parts.

Duplex Stainless Steel Pipe Application:

1. Chemical processing, Transport and Storage.

2. Oil and gas exploration and offshore rigs.

3. Oil and gas refining.

4. Marine environments.

5. Pollution control equipment.

6. Pulp and paper manufacturing.

7. Chemical process Plant.

Some of the quality tests carried out by us includes:

Corrosion Test

Conducted only when specially requested by the client

Chemical Analysis

Test done as per required quality standards

Destructive / Mechanical Testing

Tensile | Hardness | Flattening | Flare | Flange

Reverse-bend and Re. flat tests

Carried out in full compliance with relevant standards & ASTM A-450 and A-530 norms, which ensures trouble-free expansion, welding & use at customers end

Eddy Current Testing

Done to detect homogeneities in subsurface by using Digital Flaw-mark Testing System

Hydrostatic Testing

100% Hydrostatic Testing carried out according to ASTM-A 450 norms for checking tube leakage, and biggest pressure we can support 20Mpa/7s .

Air Under Pressure Test

To check any evidence of air leakage

Visual Inspection

After passivation, every single length of tubes & pipes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections

Detailed Production Process

Seamless Pipe Production Flow Chart: Stainless Steel Bar-> Inspection-> Peeling-> Cut-Center-> Heating-> Piercing-> Inspection/Polishing-> Pickling - Cold Rolling/Drawing-> Pickling-> Solution Annealing-> Straightening-> Cutting-> Bright&Annealing/Pickling Passivating-> Composition Inspect-> Marking-> Packing-> Storing-> Shiping.


YUHONG GROUP deal with Austenitic Stainless Steel, Nickel Alloy Steel (Hastelloy , Monel, Inconel, Incoloy) seamless and welded pipe and tube already more than 25 years, every year sell more than 80000 tons of steel pipe and tube. Our client already cover more than 45 countries, Like Italy, UK, Gernmany, USA, Canada, Chile, Colombia, Saudi Arabia, Russia, Korea, Singapore, Austrial, Poland, France , ....And our group branch company and factory have been already approved by : ABS, DNV, GL, BV, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2008, ISO 14001-2004.

If you have any inquires, please freely contact me.

Email: luis.bao@ steelseamlesstube.com

YUHONG GROUP CO.,LIMITED

 

Yuhong Group Co.,Limited is one of the largest Procurement Engineering and Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, DNV, GL, BV, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2008, ISO 14001-2004. Yuhong Group has expanded its field of activities and entered in trade and supply of tubular & flat products in Stainless Steel, Carnon steel, Alloy Steel as well as a series of special materials for our reputed clients worldwide. These products are widely used in various important sectors like Mining, Energy, Petrochemical, Chemical Industry, Food Plant, Paper Plant, Gas and Fluid Industry etc.

Yuhong Group has gained rich experience in Pipes, Fittings, Flanges, Valves, Structural steel, Coils and Plates in past seven years. In a short span of time, Yuhong Group has marked its global presence in more than 30 countries. We have successfully implemented the orders of Cross Country Pipelines for our valuable customers. In addition, we have also developed a huge network of contacts and strategic alliances with most important manufacturers an stockists around the world.

It allows us to offer highly competitive solutions with certified quality, complying with high standard of today's industry. In the supply chain of Yuhong Group,Stainless Steel Pipe and Tube, which are produces by our factories : Zhejiang Yuhongwell Steel Co.,Ltd , Zhejiang Zhongwu Tube Manufacturing Co.,Ltd , Jiangsu New Zhongzhou Special Alloy Materials Co.,Ltd etc. And all of other products' suppliers are approved by our QC department. About Stainless Steel Fittings & Flanges, our suppliers are approved by PED, AD2000, DNV, ABS, TS, GL, LR, KR, GOST, NK, etc. Similarly in Carbon steel pipe/tube/fitting, our suppliers are approved by API5L, API 5CT,API 5D, PED etc. When we place the order, it is our practice to follow the order start from raw material. After getting the material ready, our QC people make strict inspection again before loading the material. We will follow the whole processing of producing, marking ,packing and inspection before deliver to customer.

Company Info

  • Company Name: YUHONG GROUP CO.,LIMITED
  • Representative: Bing Chen
  • Product/Service: Heat Exchange Tube , Boiler Tube , Nickel Alloy Steel Pipe & Tube , Duplex Steel Pipe & Tube , Forged Flange , Butt Welding Fitting
  • Capital (Million US $): 200,000,000RMB
  • Year Established: 2007
  • Total Annual Sales Volume (Million US $): US$10 Million - US$50 Million
  • Export Percentage: 61% - 70%
  • Total Annual Purchase Volume (Million US $): US$1 Million - US$2.5 Million
  • No. of Production Lines: 54
  • No. of R&D Staff: 11 -20 People
  • No. of QC Staff: 5 -10 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 30,000-50,000 square meters
  • Factory Location: MoCheng Industrial Park, Aojiang Town, Wenzhou City, Zhejiang.
  • Contact Person: Mr. Luis Bao
  • Tel: 86-574-88013900
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