ASTM A268 TP439 welded pipes and tubes for heat exchangers

Tolerance

a) Outer Diameter:  +/- 0.1mm

b) Wall Thickness: +/- 0.02mm

c) Length: +/- 5mm

Surface

180G, 320G, 400G Satin / Hairline 400G, 500G, 600G or

800G Mirror finish and so on.

Standard 

AISI, ASTM, DIN, EN, GB and JIS

ASTM A213,ASTM A312,ASTM A269,ASTM A778,ASTM A790

DIN 17456,DIN 17458

JIS G3459,JIS G3463 etc

Material

300series:301,302,302B,303,303Se304,304L,304N,308,309,309s,310,310S,316,316L,316N,316Ti,317,317L,321,347

200series:201,202,202cu,204

400series:409,409L,410,420,430,431,439,440,441,444

Others:2205,2507,2906,330,660,630,631,17-4ph,17-7ph, S318039 904L,etc

Duplex stainless steel:S22053,S25073,S22253,S31803,S32205,S32304

Special Stainless Steel:904L,347/347H,317/317L,316Ti,254Mo

Application range

Stainless steel tubes usually applied in motor,construction, oil, medicine, food, paper, machi

nery, washingmachine,chemicals, food containers and other industries. seawater environment, petrochemical,

fertilizer, oil refining, oil and natural gas, light/food, paper pulp and making paper, energy and

environmental-protection industry.

  Main market

We have frequenter customers from 

Europe: Germany,Netherland,Russia, Finland,Czech,Ukraine,Italy,Spain,Poland

Middle East:Iran,UAE,SA,Iraq,Qatar,Isreal,Jordan,Bahrain,Kuwait

South America:Brazil,Chile,Peru,Venezuela,Uruguay,Argentina

Africa:Egypt,South Africa,Nigeria

Central&North America:Mexico,US,Canada,Costa Rica

South East Asia and Pacific:Japan,South Korea,Singapore,Thailand,Indonesia,Australia

Delivery conditions

 Annealed, pickled & polished.

Note

We can produce other standard as the customers’ requirement.