1)Products:
LDX2101 duplex Stainless Steel pipe with high strength and better corrosion resistance
Super-dual stainless steel refers to PREN-40, with 25% Cr and high-octane (-3.5%), high-nitrogen (0.22% to 0.30%) of dual-phase steel, the main grades are UNS S32550 (UR52N plus), S32750 (SAF 2507) and S32760 (Zeron 100), respectively, the French CLID, Swedish SLID, and other companies, Their deformation material came out in about 1990 and 1991, and recently entered the market. The composition of the three steels is similar, except that tungsten and copper are different in content.
2)Features:
Due to the characteristics of the two-phase structure, through the correct control of the chemical composition and heat treatment process, DSS has the advantages of ferritic stainless steel and austenitic stainless steel.
Compared with austenitic stainless steel, the advantages of duplex stainless steel
(1) The yield strength is more than double that of ordinary austenitic stainless steel, and it has sufficient plastic toughness for forming. The wall thickness of the storage tank or pressure vessel made of duplex stainless steel is 30-50% less than that of commonly used austenite, which is beneficial to reduce costs.
(2) It has excellent resistance to stress corrosion cracking. Even the duplex stainless steel with the lowest alloy content has higher stress corrosion cracking resistance than austenitic stainless steel, especially in the environment containing chloride ions. Stress corrosion is a prominent problem that ordinary austenitic stainless steel is difficult to solve.
(3) The corrosion resistance of 2205 duplex stainless steel, which is the most common application in many media, is better than that of ordinary 316L austenitic stainless steel, while super duplex stainless steel has extremely high corrosion resistance. In some media, such as acetic acid, Formic acid can even replace high-alloy austenitic stainless steel and even corrosion-resistant alloys.
(4)
It has good local corrosion resistance. Compared with austenitic stainless steel with equivalent alloy content, its wear resistance and fatigue corrosion resistance are superior to austenitic stainless steel.
(5) The coefficient of linear expansion is lower than that of austenitic stainless steel, close to carbon steel, suitable for connection with carbon steel, and has important engineering significance, such as the production of composite panels or lining.
(6) No matter under dynamic load or static load conditions, it has higher energy absorption capacity than austenitic stainless steel. This has obvious advantages for structural parts to deal with unexpected accidents such as collisions and explosions. Duplex stainless steel has practical application value. .
The weakness of duplex stainless steel compared to austenitic stainless steel
(1) The universality and versatility of the application are not as good as austenitic stainless steel, for example, its use temperature must be controlled below 250 ºC.
(2) Its plastic toughness is lower than that of austenitic stainless steel, and its cold and hot processing technology and forming performance are not as good as austenitic stainless steel.
(3) There is a middle temperature brittle zone, and the process system of heat treatment and welding needs to be strictly controlled to avoid the appearance of harmful phases and damage performance.
Compared with ferritic stainless steel, the advantages of duplex stainless steel
(1) The overall mechanical properties are better than ferritic stainless steels, especially the plastic toughness, which is not as sensitive to brittleness as ferritic stainless steels.
(2) In addition to stress corrosion resistance, other local corrosion resistance is better than ferritic stainless steel.
(3) The cold working process performance and cold forming performance are far superior to ferritic stainless steel.
(4) Welding performance is also far superior to ferritic stainless steel. Generally, preheating is not required before welding, and no heat treatment is required after welding.
(5) The application range is wider than ferritic stainless steel.
The weakness of duplex stainless steel compared to ferritic stainless steel
The alloy element content is high, the price is relatively high, the general ferrite does not contain nickel.
3)Material:
1>. Carbon steel flange: ASTM A105, ASTM A350 LF2, ASTM A694 F42-F52-F60-F65- F70, C22.8, C21, Rst37.2, S235JRG2, P355NH, SS400
2>. Stainless steel flange: ASTM A 182 F304-304L-304H, ASTM A182 F321-321H, ASTM A182 F347-347H, ASTM A182 F316-316L-316H
3>. Alloy steel flange: ASTM A182 F1--F5- F9-F11, F12, F22, F51, 16Mo3, 1Cr5Mo, 15CrMo, 42CrMo, 12Cr1MoV, TStE355,4130, 4140, 4317, 4142, 4340, UNS440, 34CrNi3Mo, 25Cr2Ni4MoV, 18CrNiMo530CrMo, 9Cr2W, 9Cr2Mo, 9Cr3Mo, 60CrMoV, CK45, 5CrMnMo, 40Cr, 20Cr2Ni4, 5CrNiMo, 15CrNiMo, 20CrNiMo, 35CrMo, 40CrNiMo
4>. Duplex Stainless Steel: ASTM A182 F44, F45, F51, F53, F55, F60, F61
5>. Nickel Alloy: UNS 2200 (NICKEL 200), UNS 4400 (MONEL 400), UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600), UNS 6601 (INCONEL 601), UNS 6625 (INCONEL 625), UNS 10276 (HASTELLOY C 276), UNS 2201 (NICKEL 201), (ALLOY 20 / 20 CB 3)
6>. Claded materials: ASTM B898, B263, B264 or closer explosion cladding, making materials of 2 in 1 or 3 in 1.
Standard:
ASME, MSS, EN, DIN, ISO, JIS, GB, SH, HG, JB, GD
Type:
Butt-welding pipe Fitting (Elbow, Tee, Reducer, Cross, Cap , Stub Ends)
Forged Pipe Fitting (Elbow, Tee, Cross ,Union, Coupling, Outlet, Boss, Bushing, Plug, Nipple)
Finish:
Transparent oil, rust-proof oil, hot galvanizing
Connection:
Butt Weld & Socket Weld & Thread
Applications:
Sewage treatment, chemical industry, thermal power, pharmaceutical, aerospace, power, paper making and other industries.
Delivery Time:
within 25-30 days after we have confirmed your order
Package:
wooden cases or wooden pallets or as per customer's requirement
Wall thickness:
sch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100, sch120, sch140, sch160, xxs, std,sch5s, sch20s, sch40s, sch80s
Certificate:
ISO9001:2008, SGS, API, ASME, ABS, BV, GL, TUV, CCS, TS, ISO
Clients:
Our main clients are from Turkey, Italy, France, Spain, South Africa, Moroco, Dubai, Iran, Syria, Singapore, Vietnam, Austria, USA, Canada, Mexico, Korea, Thailand, India, Bulgaria, Russia and so on
4)Grade:
SAF2205(S31803),SAF2507(S32507),SAF2304(S32304),S32010,S32304,S32003,S32760,S32205,1.4362,1.4462,1.4410,1.4501,2205,4501,LDX2101,LDX2304 59and so on.
Duplex Stainless Steel (referred to as DSS) refers to ferrite and austenite each accounting for about 50%, generally the content of the less phase also needs to be at least 30% stainless steel. In the case of low C content, Cr content is 18% ~ 28%, Ni content is 3% ~ 10%. Some steels also contain alloying elements such as Mo, Cu, Nb, Ti, and N.
Our Service For You
Pre-sale Service
1. Sample can be offered with sample charge and courier fee by buyer's side.
2. We have full stock,and can deliver within short time.Many styles for your choices.
3. OEM and ODM order are accepted, Any kind of logo printing or design are available.
4. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you
5. All of our products are produce by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.
6. We have 8 year experience of design, manufacture and sell lingerie, we cherish every order from our honor.
After you choose
1. We will count cheapest shipping cost and make invoice to you at once.
2. Check quality again, then send out to you at 1-2 working day after your payment,
3. Email you the tracking no, and help to chase the parcels until it arrive you.
After-sale choose
1. We are very glad that customer give us some suggestion for price and products.
2. If any question,please contact with us freely by E-mail or Telephone.
FAQ:
Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and trading company. We specialized in special steel which include alloy structural steel and carbon steel and stainless steel, etc. All material are with high quality and competitive price.
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as TUV, CE, if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.
Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material don't have stock, the delivery lead time is about 5-30 days after receiving your prepayment or firm order.
Q: What is the payment term?
A: T/T or L/C.
Q: Can you provide a sample for our testing before confirm the order?
A: Yes. We can provide sample to you for approval before you place an order to us. Free sample is available if we have stock.
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.
contact:
Name: Diana Yang
Website: https://shanghaibozhong.en.made-in-china.com
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