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Contacts: Bob Lee
Skype: bobo.lee2
Mobile No.&Whatsapp: +86-13758498349
address: Haining RD Yongzhong Street Longwan Area Wenzhou City Zhejiang Pr,China.
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Current Position:Home > Pipes&tubes > S31803/2205 Dup

S31803/2205 Duplex 2205 Seamless/Welded Pipe Manufacturer price

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Description

Duplex Stainless Stee Pipe Seamless and welded manufacturer suppliers.

Duplex stainless steel pipe(manufacturer suppliers) has good welding performance, compared with the ferritic stainless steel and austenitic stainless steel, it is neither like ferritic stainless steel weld heat affected zone, as grain coarsening and make the plastic toughness sharply lower, also don't like austenitic stainless steel, the welding thermal crack is more sensitive.

Duplex stainless steel pipe manufacturer suppliers safety use restrictions and requirements

1. The need to control the phase ratio, the most appropriate proportion is ferrite and austenite meet each half, including a number of not more than 65%, so as to ensure the best comprehensive performance. If two phase imbalance, such as too many ferrite phase, it is easy to form in welding HAZ, single-phase ferrite in some medium is sensitive to stress corrosion cracking.

2. Need to master organization change law of duplex stainless steel tube, and familiar with each steel grade TTT CCT curve, this is the correct guidance for duplex stainless steel heat treatment, hot forming technology is the key, such as precipitation of duplex stainless steel brittle phase are much more sensitive than austenitic stainless steel.

3. Continuous use of duplex stainless steel pipe manufacturer suppliers- 50 ~ 250 ℃ temperature range, the lower limit depends on the brittle transition temperature, steel cap is limited by 475 ℃ brittleness, the maximum temperature should not exceed 300 ℃.

4. The duplex stainless steel pipe manufacturer suppliers after solid solution treatment need to be fast, slow cooling leads to the precipitation of brittle phase, which can lead to the toughness of the steel, especially the local corrosion resistance.

5. High chrome molybdenum hot working of duplex stainless steel tube and the lower limit of thermoforming temperature not lower than 950 ℃, super duplex stainless steel is not less than 980 ℃ low chromium molybdenum duplex stainless steel is not less than 900 ℃, avoid caused by brittle phase separation in the process of surface crack

6. You can't use of austenitic stainless steel commonly used 650-800 ℃ eliminating stress processing, generally USES solid solution annealing treatment. For surfacing duplex stainless steel in low alloy steel, the need for 600-650 ℃ the overall elimination should be processing, must be considered due to the precipitation of brittle phase of toughness and corrosion resistance, especially the resistance to local corrosion performance degradation, as far as possible, shorten the heating time in this temperature range. Heat treatment of low alloy steel and duplex stainless steel clad plate problems also want the same consideration. [1]

7. Need to be familiar with understand the laws of duplex stainless steel pipe welding

Details:

Standard:

JIS,AISI,ASTM,DIN,EN

Place of Origin:

Zhejiang, China 

Brand Name:

KCM SPECIAL STEEL

Model:

2205 Duplex Stainless Steel Pipes

Type:

Duplex Stainless Steel Pipes

Steel Grade:

2205 Duplex Stainless Steel

Application:

Heat exchanger and condenser

Surface:

as customer's required

 Type:

EFW/smls

Thickness:

SCH5~SCH160

Outer Diameter:

1/8"-48"



Packaging & Delivery

Packaging Detail:wooden cases or plastic by bundles as per customer's required
Delivery Detail:5- 30 days

ASTM A790/789 (UNS S32205)S31803/2205 Duplex Stainless Steel Pipes MANUFACTURER SUPPLIER

01) Type: S31803/2205 Duplex Stainless Steel Pipes manufacturers suppliers
02) Process method: Hot rolled/ cold rolled/ cold drawn
03) Surface finish: Annealed/pickling,mirror,
04) Standards: A790, JIS G3459, JIS G3463, DIN 17456, DIN 17458
05) Material: UNS S32205, 2205, etc
06) Size:
A) O. D.: 6mm - 711mm
B) Thickness: 0.8mm - 50mm
07) Length: Max. 16 meters (specific or random)
08) Delivery conditions: Annealed, pickled & polished

Description

ASTM A790/789 (UNS S32205) 2205 Duplex Stainless Steel Pipes

 Range

O.D.: Φ6 - Φ710mm, W.T: 0.8mm - 60mm

SCH 5,SCH 10,SCH 20,SCH 40,SCH 80,SCH 120,SCH 160,SCH XXS

standard

ASTM A213,ASTM A312,ASTM A269,ASTM A778,ASTM A790,DIN 17456,DIN 17458,JIS G3459,JIS G3463

Grade

UNS S32205/S31803, 2205, etc

Grade 2205 Duplex (UNS S32205/S31803)

Duplex 2205 is the most widely used duplex (ferritic/austenitic) stainless steel grade. It finds applications due to both excellent corrosion resistance and high strength.

The standard S31803 composition has over the years been refined by many steel suppliers, and the resulting restricted composition range was endorsed as UNS S32205 in 1996. S32205 gives better guaranteed corrosion resistance, but much of the S31803 currently produced also complies with S32205.

2205 is not generally suitable for use at temperatures above 300°C as it suffers from precipitation of brittle micro-constituents, nor below -50°C because of its ductile-to-brittle-transition.

Chemical Composition, %

Cr

Ni

Mo

C

N

22.0-23.0

4.50-6.50

3.00-3.50

.030 Max

0.14-0.20

Mn

Si

P

S

Fe

2.00 Max

1.00 Max

.030 Max

.020 Max

Balance

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES APPLICATIONS:

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In Ship Builders, 

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In Automotive Industry, 

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In Power Generation, 

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In Food Industry, 

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In Paper Industry, 

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In Pharmaceutical Industry,

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In Chemical Industry, 

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In Oil and Gas Industry, 

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In Heat Exchanger

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In Chemical process vessels,

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In piping and heat exchangers

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In Pulp mill digesters,

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In bleach washers,

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In chip pre-steaming vessels

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In Food processing equipment

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In Oil field piping and heat exchangers

UNS S31803/SAF2205 DUPLEX STAINLESS STEEL SEAMLESS PIPES TUBES Seamless Pipes/Tubes Use In Flue gas desulfurization equipment


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