Active Member
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[China]
Address: 5F, Building #32, No.518 Xinzhuan Rd, Songjiang District, Shanghai, P.R.China 201612
Contact name:Annie Wang
Shanghai Bozhong Metal Group Co., Ltd. |
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Duplex 2205 stainless steel pipe with excellent mechanical properties and corrosion resistance, and good weldability, in oil and gas industry, Marine engineering, chemical industry and other industries have a wide range of USES. Oil and gas industry at present USES duplex stainless steel material laying of oil and gas pipeline length has more than 850 km, the vast majority of the 2205 duplex stainless steel seamless steel tube (there is also a part of S31803 duplex 2205 stainless steel pipes, 2507 duplex stainless steel pipe tube); Due to the corrosive strength of the natural gas medium, the high-pressure duplex 2205 stainless steel pipe line materials.
| C | Si | Mn | P | S | Ni | Cr | Mo | N |
| ≦0.030 | ≦1.00 | ≦2.00 | ≦0.030 | ≦0.015 | 4.50~6.50 | 21.00~23.00 | 2.90~3.50 | 0.14~0.20 |
Duplex 2205 stainless steel pipe combination of ferrite and austenite is the most beneficial properties, has the very good resistance to chloride stress corrosion cracking, is made up of 21% chromium, 2.5% nitrogen and 4.5% molybdenum nickel alloy consisting of duplex stainless steel, it is the yield strength of austenitic stainless steel double, this feature enables designers when designing products lose weight, make this kind of alloy has the advantages of more than 316,317L. Due to the high levels of chrome and molybdenum, the ability to resist spot corrosion and uniform corrosion is excellent. The double phase microstructure ensures that the steel has high tensile strength and high mechanical strength.
DUPLEX 2205 STAINLESS STEEL PIPE
| DUPLEX 2205 | 304 | 316L | REMARKS | ||
| resistance to corrosion | Corrosion resistance of chlorinated chloride | >1000 | 47 | 152 | 40%Cacl2 100℃ Cause corrosion cracking time(h) |
| PREN | 35.4 | 18.4 | 25.9 | PREN The greater the coefficient, the stronger the hole erosion | |
| Intercrystalline corrosion | very good | good | ok | ||
| Uniform corrosion resistance g.(m2.h)-1 | 0.021 | 57 | 12.1 | 20%H2So4 60℃ 100h | |
Fatigue resistance ≥ | very good | good | ok | ||
| Mechanical properties | Tensile strength Rm((Mpa)≥ | 620 | 485 | 485 | 1020-1100℃ Water quenching |
yield strength Rp0.2(Mpa)≥ | 450 | 170 | 170 | 1020-1100℃ Water quenching | |
elongation A50(%)≥ | 25 | 40 | 40 | 1020-1100℃ Water quenching | |
| Hardness (b/l) ≤ | 290/30.5 | 187/90 | 187/90 | 1020-1100℃ Water quenching | |
| Physical properties | Coefficient of thermal conductivity w/(m. ℃) | 19 | 18 | 15 | 20-100℃ |
| Linear expansion coefficient(10-5/℃) | 13.7 | 16 | 16 | 20-100℃ | |
| Welding performance | The line thermal tendency coefficient is small, need not preheat before welding, do not need heat treatment after welding, can be welded with 304 stainless steel | In principle, no welding and preheating should be done | Welding is prone to high temperature cracks | ||
| Integrated performance comparison | very good | good | good |
▲ Neutral chloride environment,
▲ oil refining industry,
▲ petrochemical and chemical industry,
▲ chemical industrial pipelines,
▲ oil and gas industry,
▲ pulp and paper industry
▲ urea fertilizer industry,
▲ phosphate fertilizer industry,
▲ the water environment,
▲ energy and environmental protection industry,
▲ light industry and food industry,
▲ food and pharmaceutical industry equipment,
▲ high strength structure
▲ 2205 duplex stainless steel round pipe and tube
▲ 2205 duplex stainless steel square pipe and tube
▲ 2205 duplex stainless steel rectangular pipe and tube
▲ 2205 duplex stainless steel seamless and welded pipe
▲ 2205 duplex stainless steel seamless and welded tube
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.
