1)we're approved by SGS;ISO;BV certificates
2) Size:OD5-114*ID0.5-10*L
3) Gr1 Gr2
4) ASTM B337 B338
5) for heat exchanger

Grade

Condition

Manufacturing Method

OD

Wall  Thickness

Long

Standard

 

 

 

 

 

 

Gr1

Gr2

 

 

 

 

 

 

 

 

Annealed

 

 

 

Cold rolling

Seamless

10-15MM

0.5-4.5 MM

500-4000MM

 

 

 

 

 

 

ASTM B337

ASTM B338

15-20MM

0.6-2.5 MM

 

 

500-9000MM

20-30MM

0.6-2.5 MM

30-40MM

1.0-2.5 MM

40-50MM

1.5-3.0 MM

50-60MM

1.5-3.5 MM

60-80MM

2.0-4.5 MM

 

 

 

Welded

16MM

0.5-1.0 MM

 

500-15000MM

19MM

0.5-1.25MM

25  27MM

0.5-1.5 MM

 

500-6000MM

31  32  33MM

0.8-2.0 MM

38MM

1.5-2.5 MM

 

500-4000MM

50MM

2.0-2.5 MM

63MM

2.0-2.5 MM

 

Welded

-------

Rolling

6-10MM

0.5-1.25 MM

 

500-8000MM

10-15MM

0.5-1.5 MM

15-20MM

0.5-2.0MM

 

500-5000MM

20-25MM

0.5-2.0 MM

25-30MM

0.5-2.0MM

 

Application: heat exchanger, Electronics; cooling towers etc. Cooperated major coustomers : SAMSUNG ( Korea);GNG CO.(Korea), GE(USA); ZAN ; ISC (Japan); BHEL (india); Internation Services Cooperation ( Iran ) etc.