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16SWG S31803 2205 U Tube For Oil Refinery

  • 16SWG S31803 2205 U Tube For Oil Refinery
  • 16SWG S31803 2205 U Tube For Oil Refinery
  • 16SWG S31803 2205 U Tube For Oil Refinery
  • 16SWG S31803 2205 U Tube For Oil Refinery

16SWG S31803 2205 U Tube For Oil Refinery

    Payment Type: L/C,T/T,D/P,Money Gram,Western Union
    Terms of Trade: FOB,CFR,CIF,EXW,FCA
    Delivery Time: 35 Days
    Packaging: Plywood Case /Iron Case/ In Bundles Packing
    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.: U Bend Tube

Product Description

16SWG S31803 / 2205 Duplex Steel Tube With Pickling Surface For Oil Refinery


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. Yuhong Group U Bend Heat Exchanger Tube with Pickling & Annealing surface is very popular in boilers and heat exchangers industry, water heater industry, air-conditioning industry etc. This kind of seamless tubes has a very important position in our all products . Yuhong Group start to produce U Bend Heat Exchanger Tube Since 2006, now every year we can supply more than 6000 tons of Stainless Steel U Bend Tubes to 50 countries in the world.

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; OD>Φ630mm 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

1.4501

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



Process :

1 . We use Cold Rolled and Cold Drawn techonology to produce U bend tube

2 . U bend tube produce will in accordance with the customer's drawings
3 . To avoid oxidation, inert gas (Argon) is passed through tubes ID at the required flow rate
4 . The radius is checked for its OD and wall thinning with the recommended specification
5 . We'll choose three different positions or as customer's request to make sure of the tubes quality. We'll test mechnical properties and micro-structure tests
6 . Visual inspection for witness and cracks will be done with Dye Penetrant Test
7 . Each tube shall be done Eddy current test and Hydrostatic test at the recommended pressure to check for leakage

Qq 20200219145543

Technical Requirements.

Straight Tubes Standard Specification For Bending:

ASME SA 213; ASME SB 163; ASME A789, ASME SA268, ASME SA269, etc.

Marking: Before Bending By Marking Machine All Over The Tube Length (Bent Section After Heat Treatment Without Marking)

Note: Marking is also possible After bending on the straight parts of U bend Tube.

Any extra requirements could be indicated by customers before order comfirmed.

Also Yuhong Group will give our customers the most professional technical support as well as after-sales service etc.


The standards of U Bend Heat Exchanger Tube as below:

- TEMA RCB 2.31 Standard Of The Tubular Exchanger Manufacturers Association

- ASTM A688/ASME SA688 Standard Specification For Welded Tubes Of Austenitic Corrosion Resistant Steel Grade Designed For Feed Water Boilers.

- ASTM B163/ASME SA163 Standard Techinical Requirements For Tubes Of Nickel And Nickel Alloy For Condensers And Heat Exchangers.

Customer Specifications.

Bending Radius: From 1.5*OD(Outside Diameter) To 1500mm

When Ordering Tubes With Radius less or equal to 1.5*OD, It Is Necessary To Agree Precision Of Geometrics.

Straight Tubes Maximum Length:(Before Bending): 35000 mm.

Leg Length: Min 1 Meter, Max. 16500 mm (For Max R=1500mm)

Note: Other Sizes are available upon agreement between customers and us.

Heat Treatment: Stress Relieved After U-Bending (Bending Area Plus 300MM For Each Leg).

Hydrostatic Test After U Bending: Maximum Test Pressure 600 Bar, Soaking 10 Sec. With

Dematerialized Water. Compressed Air Cleaning After Hydro-Test.

Packaging: In Strong Transport-Worthy Pre-fumigated wooden boxes of corresponding dimensions for each tube Length, Radius, Diameter, According To PO requirements as well as wrapped In polyethylene films With soft plastic caps on both end of Tube. Yuhong Group as the most manufacturer of U Bend Heat Exchanger Tube in China, we will provide our customers the best & stable packing to avoid any demages during the long distance transportation. All the customers will be satisfied with our products quality & service.


Below quality tests will be carried out by us:

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


Supplementary Testing :

Apart from the above mentioned tests, we also carry out on the manufactured products supplementary testing. The tests conducted under this include:

  • Eddy Current Testing
  • O.P Testing
  • Radiography Testing
  • Corrosion Testing
  • Micro Testing
  • Macro Testing
  • IGC Testing
  • Ultrasonic testing
  • Liquid Penetrate testing


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

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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. Aaron Guo
  • Tel: 86-574-88013900
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