Payment & Shipping Terms:
|W.T.:||BWG16||Length MAX:||12000MM Max.|
|Pipe Finish:||Cold Drawn||Standard:||ASTM A268|
S31803 2205 Duplex Steel Welded Cold rolled Tube ASME SA789 for heat exchanger
Specifications of Duplex Stainless Steel Welded Tube
1. Standard: ASTM ASME
2. Grade: 630 / 631 / 2205 / 2507 / 17-4PH
ASTM A789, ASTM A790, ASTM A450, ASTM A530,
GB/T 14976, GB/T 14975, GB/T 13296, etc
3. OD: 8mm-1000mm
4. Wall thickness: 0.3mm-30mm
5. Length: max.18000mm or as demand
6. Surface finish: Polishing (180#,220#,240#,320#400#,600#), Hairline, acid pickled, etc.
Duplex Stainless Steel Tubing has a chemical composition of approximately equal parts of austenite and ferrite which is why it has twice the design strength of normal austenitic and ferritic stainless steel tubing. Duplex stainless steel tubings have a wide range of corrosion resistance levels. They also have high resistance to stress corrosion cracking that they might have received from its ferritic side. Duplex stainless steels are still very much in their developing stages and there are constantly different brands being promoted, this should continue till an accomplished and proven grade emerges. Duplex stainless steel tubes are used by a number of companies across the globe because they are very cost effective.
|Basic Information||Material Grade||TP304 , TP304L , TP304H , TP316 , TP316L , TP316Ti , TP309S , TP310S , TP321 , TP321H , TP347 , TP347H , S31803 , S32750 , S32205 etc|
|Length||Can be Produced as per customer’s requirement|
|Standard||ASTM A213 ; ASTM A269 ; ASTM A312 ; ASTM A789 ; ASTM A790 ect .|
|Process Method||Cold Drawn or Cold Rolled
This specification covers Seamless austenitic stainless steel tubing intended for high temperature usage such as boiler, superheater, heat exchanger, or condenser tubes.
SeaWorthy Polywooden Cases/In Bundle
Boilers, heat exchanger, heaters or condensers.
|Specifications (ASTM/ASME) Duplex Stainless Steel Pipe|
|2205||S31803/S32205||A 240/SA-240||A 270||A 790/SA-790|
|Chemical Composition (%) Duplex Stainless Steel Pipe|
|Carbon (C) max.||0.030||0.030|
|Manganese (Mn) max.||2.00||2.00|
|Phosphorus (P) max.||0.030||0.030|
|Sulfur (S) max.||0.020||0.020|
|Silicon (Si) max.||1.00||1.00|
|Chromium (Cr)||21.0 - 23.0||22.0 - 23.0|
|Nickel (Ni)||4.5 - 6.5||4.5 - 6.5|
|Molybdenum (Mo)||2.5 - 3.5||3.0 - 3.5|
|Nitrogen (N)||0.08 - 0.20||0.14 - 0.20|