En 1.4462 Duplex Steel Tube 2205 Seamless ASTM A790 S31803 Tubes for Specialized Seawater Equipment

• Customization: Available
• After-sales Service: Available
• Warranty: Available
• Model NO.: UNS S31803
• Type: Seamless
• Technique: Cold Rolled
• Material: Stainless Steel
• Surface Treatment: Polished
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Marking: as Per Requirement
• Pipe End: Plain or Beveled
• Inspection: Acceptable
• Length: Fixed or Random
• Transport Package: Polywoven Bag & Wooden Case
• Specification: All grades
• Trademark: XINTONGDA
• Origin: China
• HS Code: 7304111000
• Production Capacity: 20000 Tons Per Year

Product Description

Product Description

 

Duplex and Super Duplex Steel PIPE and Tubing 

Product Description

Lean duplex stainless steels: The lean duplex grades such as  S32101, S32202, S82011 and S32304 are characterized by relatively low levels of nickel and/or molybdenum. To compensate for the reduced nickel content, which is a strong austenite former, these grades have increased levels of nitrogen and manganese, which provide an acceptable austenite/ferrite phase balance.  As a group the lean grades have high strength, particularly yield strength, and exhibit a pitting and crevice corrosion resistance that is similar to, or just below that, of the Type 316L austenitic grade. Because of their relatively high yield strength, the lean DSSs are well suited for tank construction and structural applications.

Standard duplex stainless steels: The standard duplex grades typically contain 21-25% chromium, 2-3% molybdenum and 0.15% nitrogen.  Grades in this category are used widely across all industry sectors and 2205 (S32205) has become by far the most widely used duplex grade. The 2205 grade has a yield strength that is more than twice that of Type 316 and a pitting and crevice corrosion resistance that is similar to Type 904L austenitic stainless steel. Applications for standard duplex grades include tanks, piping, process vessels and structural applications.

Super duplex stainless steels: The super duplex stainless steels typically contain 25% chromium, 3.5-4.0% molybdenum, and 0.25-0.27% nitrogen. The pitting and crevice corrosion resistance of the super duplex grades are essentially equivalent to the 6% Mo super austenitic stainless steels. The most widely used super duplex stainless steel grades are the 2507 (S32750) and Z100 (S32760) grades. Common applications include piping, heat exchangers, tanks, and process vessels used for chemical processing and marine applications.

Hyper duplex stainless steels: The hyper duplex stainless steels, S33207 and S32707 are the most highly alloyed of the duplex family and contain 26-30% chromium, 3.5-5.0% molybdenum, and 0.30-0.50% nitrogen. The hyper duplex grades are designed for more aggressive acid and chloride-containing environments. They are produced in limited quantities and are currently only available as seamless tubing. 

NO	GB			ASTM/ UNS	JIS	ISO	DIN EN	GOST
	ISC	New	Old
22	S31053	022Cr25Ni22Mo2N	_	310MoLN, S31050	_	X1CrNiMoN 25-22-2	X1CrNiMoN 25-22-2 1.4466	_
23	S38340	16Cr25Ni20Si2	_	S31400	_	X15CrNiSi 25-21	X15CrNiSi 25-20, 1.4841	20Х25Н20С2
24	S31782	015Cr21Ni26Mo5Cu2	_	904L, N08904	SUS 890L	X1NiCrMoCu25-20-5	X1NiCrMoCu25-20-5, 1.4539	_
25	S22253	022Cr22Ni5Mo3N	_	S31803	SUS 329J3L	X2CrNiMoN 22-5-3	X2CrNiMoN 22-5-3, 1.4462	_
26	S25073	022Cr25Ni7Mo4N	_	2507, S32750		X2CrNiMoN25-7-4	X2CrNiMoN25-7-4, 1.4410	_
27	S27603	022Cr25Ni7Mo4WCuN	_	S32760	SUS329J2L	X2CrNiMoCuWN 25-7-4	X2CrNiMoCuWN 25-7-4, 1.4501	_
28	S23043	022Cr23Ni4MoCuN	_	2304, S32304	_	X2CrNiN 23-4	X2CrNiN 23-4,1.4362	03KH23N6
29	N10276	NS 3304	_	Inconel C-276, N10276		SNi 6276	NiMo16Cr15W,2.4819	_
30	20	_	_	_	S20C	C25	C22, 1.0402	20
31	N 04400	NS 6400	Ni68Cu28Fe	Monel 400, N04400	_	_	2.4360	_
32	N 06600	NS 3102	_	Inconel 600, N06600	NCF 600	_	NiCr15Fe, 2.4816	_
33	N 06625	NS 3306	_	Inconel 625, N06625	NCF 625	_	NiCr22Mo9Nb, 2.4856	_
34	N 08825	NS 1402	_	Incoloy 825, N08825	NCF 825	_	NiCr21Mo, 2.4858	_
35	N 08800	NS 1101	_	Incoloy 800, N08800	NCF 800	_	X10NiCrAlTi 32-20, 1.4876	_

Detailed Photos

Packaging & Shipping

 

 

Certifications

FAQ

Are you a factory or a trading company?
We are a company with two mill and one warehouse,produce Stainless Steel/(Super)Duplex Steel/ Nickel Alloy seamless tube&pipes.
But we also can provide welded stainless steel pipes and pipe fittings, coils, sheets, bar, plates etc. if you need. Because we know this market well

Do you have any certificate?
We have approvals of ISO9001:2015,ISO14001:2015,ISO45001:2018, BV Ocean& Offshore Ship Classification Societies, GOST, TUV, PED AD2000 etc.
And will get ABS/NORSOK/DNV/CU-TR(EAC) soon.

What is your delivery time?
It mainly depends on your demanded volume and material grade. The time of delivery is usually around0.5- 1 month(1*40HT as usual).
We can send it out in 5 days if it has stock.

What is your payment terms?
Our usual payment term is 30% deposit and the rest against B/L. L/C is also acceptable. And the shipping terms are EXW,FOB, CFR,CIF.Whichever you like.

How can you guarantee the quality of my goods?
All material are 100% PMI tested and measured before shipping. We also accept third part inspection andEN10204.3.1B Mill test certificate for all materials.

How do you make our business long-term and good relationship?
1.We keep good quality and competitive price to ensure our customers benefit.
2. We respect every customer and we sincerely do business with them, sustain our service level before and after every deal.