S32550/F61/DIN 1.4462 Seamless Stainless Steel Tubeing in ASTM Standard

S32550 Duplex Stainless Steel Description
     Stainless steel S32550 is a 25% chromium duplex ferritic-austenitic stainless steel designed to provide a superior combination of high strength and excellent corrosion resistance for a wide variety of applications. The alloy possesses a microstructure which is a balanced mixture of austenite and ferrite. The combination of these phases develops the unique combination of strength and chloride stress-corrosion cracking resistance of this alloy. The alloy finds applications in marine corrosion areas, equipment for phosphoric acid and fertilizer industry, pollutions control equipment, the pulp and paper industry and the petrochemical industry.
Product Description
1. S32550/F61/DIN1.4462 Seamless Stainless Steel Tubeing in ASTM Standard
2. Standard: ASTM A312,A213,A269,A778,GB/T 12771,GB/T 14975,GB/T14976,ASTM A279,JIS G3459,DIN 17458, ASTM A333
3. Size: Outer Diameter6mm-500mm
              Wallthickness:0.2mm--50mm
4.Length: 100/1000/2000/4000/6000/12000mm, or other length as you requirements.
5.Surface: pickling; mill surface; 2B; HL; No.4; 8K; Mirror colorful; HL colorful,etc
6.Process: welding, seamless, cold drawn
7. The material grade we have
201,202,1.4371,1.4373,SUS201,SUS202, 301,303,304,304L,304LN,304N,309,309S,310,310S,316L,316Ti,317L,321,321H,347H,1.4319,1.4305,1.4301,1.4306,1.4833,1.4845,1.4404,1.4571,1.4438,1.4541,SUS304,SUS304L,SUS309S,SUS310S,SUS316,SUS316Ti,SUS316L,409,409L,410S,420,430,440C,444,1.4016,1.4006,1.4002,1.4125,1.4501,1.4362,1.4460,1.4521,1.4545,1.4542,1.4568,1.4547,F51,F52,F53,F55,F60,630,631,17-4PH,15-5PH,S31254,S31803,S32900,S32205,S32750,S32550,S32760,S32304,S31200,S17400,S17700,904L,254SMo,1.4462,1.4410,1.4501,1.4362,1.4460,1.4545,1.4542,1.4568,1.4547,1.4529,1.4539 and so on.
8.for the shape we have: round; square; hexagonal; U channel; C channel.etc
9.we can produce the stainless steel tube/pipe as the customer's drawings.
Product Range
Material Grade we have  
1)200series stainless steel:201,202,1.4371,1.4373,SUS201,SUS202,etc
2)300series stainless steel :301,303,304,304L,304LN,304N,309,309S,310,310S,316L,316Ti,317L,321,321H,347H,1.4319,1.4305,1.4301,1.4306,1.4833,1.4845,1.4404,1.4571,1.4438,1.4541,SUS304,SUS304L,SUS309S,SUS310S,SUS316,SUS316Ti,SUS316L,etc
3)400series stainless steel :409,409L,410S,420,430,440C,444,1.4016,1.4006,1.4002,1.4125,1.4501,1.4362,1.4460,1.4521,1.4545, 1.4547, ,etc
4)duplex stainless steel:F51,F52,F53,F55,F60,630,631, S31254,S31803,S32900,S32205,S32750,S32550,S32760, 904L,254SMo, 1.4529,1.4539,etc.
5) Precipitation hardening type stainless steel:17-4PH,15-5PH,630,631, 1.4542,1.4568,etc

Applications for industrial :
1.Industrial hydraulic
2.Automobile industry
3.Industrial machinery industry
4.Industrial automation
5.Rail transit
6.Heat exchange
7.Seamless pipe
8.Decoration works
9.Other
Packing
Standard export packing, or as the customers' requirement.

Why choose us?
     Our company established in 2004.More than 10 years of development,we become the leader in north China market in metal material products.We have more than 1000 tons of perennial stock.
What is our customer base?
     Our customers are located in more than 80 countries and regions around the world,especially in the Middle East,Southeast Asia,South America,North America,Australia,Eastern Europe,Nordic has long-term stability of customers.
What is our advantage?
     We have high quality products and professional services. Our products after SGS,BV,ISO certification. Our salesman has more than five years of experience.
What is the delivery time?
      If we have stock, usually the delivery time is about 10-20 working days. If your products need to be produced, the delivery time is about 30 working days or 45 working days, or according to the factory arrangement.
Will stainless steel rust? 
The answer is yes, so rusty stainless steel how to deal with it?
       First of all from the reasons for rusty stainless steel. When the stainless steel surface of the passive film corrosion resistance in the weak part of the formation of pitting due to self-induced reaction, and then the formation of small holes, slowly with chloride ions close to the final formation of a highly corrosive liquid, More speed up the corrosion rate of stainless steel. There is also a reason for the corrosion of cracks between the crystal within the stainless steel, which destroyed the stainless steel surface of the passivation film. Therefore, the surface of stainless steel must always be cleaned and maintained, so as to extend its service life. However, when cleaning the surface of stainless steel should pay attention to: stainless steel surface can not scratch the phenomenon; can not use with bleach ingredients and abrasive cleaning solution, if the use of washing liquid, must be used after the end of clean water rinse.
1.When the stainless steel surface is grease, oil pollution, you can use a soft cloth to wipe clean, and then use a neutral detergent or ammonia solution cleaning.
2.When the stainless steel surface appears rainbow pattern, because too much use of detergent or oil caused by washing with warm water neutral detergent can be cleaned.
3.When the stainless steel surface is dusty or easy to go out of the dirt, you can use soap, weak detergent or ask to rinse. Trademarks on the surface of stainless steel, when washed with warm water or weak detergents, the adhesive ingredients should be rinsed with alcohol or organic solvents.
4.When the stainless steel surface rust occurs, you can use 10% nitric acid or grinding detergent cleaning, you can also use a special detergent cleaning. Therefore, if you want to keep the bright stainless steel, clean the surface, while extending its life, the above must be done!

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