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Payment Type: L/C,T/T,D/P,Money Gram,Western Union
Transportation: Ocean,Land,Air
Model No.: Duplex Pipe
Brand: YUHONG
Type: Welded
Certification: BSI
Application: Gas Pipe
Section Shape: Round
Usage: Chemical Industry
Technique: EFW
Material: Stainless Steel
ASTM A790/A790M UNS S31803 F51 1.4462 Duplex Stainless Steel EFW Welded Pipe For Chemical Industry.
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:
ASTM A789/A789M: OD: Φ12.7mm-Φ203mm; WT:0.5mm-6.35mm | |
ASTM A790/A790M: OD: Φ6mm-Φ325mm; WT:0.5mm-30mm | |
ASTM A789/A789M: OD: Φ12.7mm-Φ203mm; WT:0.5mm-4.0mm | |
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 |
|
| 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 Steel Welded 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 |
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
Package Type | : | Plywood Case /Iron Case/ In Bundles Packing |
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Packaging: Plywood Case /Iron Case/ In Bundles Packing
Transportation: Ocean,Land,Air
Place of Origin: China
Supply Ability: 2000 Ton / Month
Certificate: ABS, GL, DNV, NK, PED, AD2000, GOST 9941
Payment Type: L/C,T/T,D/P,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.