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EFW Pipe

Pipe Type:stainless erw pipes, efw welded tubes,duplex stainless steel welded pipes,ss welded tubing
Application:heat exchangers condensers . evaporators . heating coils. digesters. fluid piping...
Specification:OD:60.3mm, 73mm, 88.9mm, 101.6mm, 114.3mm, 127mm, 139.7mm
WT:6.5mm to 12.7mm, or cutomized
LENGTH: R1, R2, R3
standard:ASTM/ASME:A213/SA213 A249/SA249 A268 A312/SA312 A269 A778
JIS:G3459 G3446 G3447 G3448 G3459 G3463 G3468
DIN:17455 17456 17457 17458 17459 2391 2462
EN:10216-5 10217-7
GOST9941 GOST9940
NFA NACE API  ISO HAF
Grade:304/304L/304H;321/321H;316/316L/316H;316TI;317L;347H;310S;UNS31803;UNS32750/U NS08904L,TP410/TP410S;ECT
Surface:Annealed, Pickling, Polished
Packing:Waterproof Paper Wrapped, Packed in Wooden Cabins

EFW1

Stainless steel pipe for industrial fluid transportation

EFW2

Stainless steel pipe for super large diameter piping

EFW3

Stainless welded steel tubes for heat exchangers and condensers

图片4

Thin-wall Stainless welded steel pipe for gas pipeline

图片5

Thin-wall Stainless steel pipes for drinking water pipeline

图片6

Stainless steel pipe for mechanical structure:

图片7


Duplex stainless steel welded pipe



SpecificationSteel gradeChemical compositionRemarks
CSiMnPSTi









Pipes for pressure service -/A45-/0.170.980.0350.035A671/
ASTM A671, A672-/A50-/0.22A672

CA55/A550.28

-/B55-/0.200.13

CB60/B600.24~0.45

CB65/B650.28


CB70/C700.31
1.3

-/C55-/0.18
0.55

CC60/C600.21
~0.98

CC65/C650.24
0.79

CC70/C700.27
~1.30



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Products description 

ERW namely  Electric resistance welding

prouducts:efw stainless steel pipe,efw welded tubes,duplex stainless steel welded pipes,ss welded tubing

ERW pipe and submerged arc welding pipe significantly different, with the pressure welding without filler metal, weld not filled with other ingredients, by high-frequency current skin effect and proximity effect, instantly heating the plate edge to welding temperature by squeezing rollers squeeze forging formed weld tissue. Require the use of high-quality steel pipe weld line or off-line heat treatment, welding zone structure refinement, quality ERW pipe welds and base metal can reach the same level of toughness, which is submerged arc welding process can not be achieved.

EFW namely electric welding Electric fusion welding of the first letter abbreviation

Submerged arc welding (SAW) - Electric welded (EFW) one, is through one or more consumable electrode between the workpiece and the heating of the metal between the metal binding in a process, the arc of the metal and filling material sufficient


STANDARD :

· ASTM/ASME:A213/SA213 A249/SA249 A268 A312/SA312 A269 A778

· JIS:G3459 G3446 G3447 G3448 G3459 G3463 G3468

· DIN:17455 17456 17457 17458 17459 2391 2462

· EN:10216-5 10217-7

· GOST9941 GOST9940

· NFA NACE API  ISO HAF

 

GRADE :304/304L/304H;321/321H;316/316L/316H;316TI;317L;347H;310S;UNS31803;UNS32750/U NS08904L,TP410/TP410S;ECT


Test Repprts:pmi test reports, en10204.3.1 certificate , nabl approved lab report on chemical and mechnical properties ndt or other test reports , 100% x-ray welding reports.


Applications:

      l heat exchangers condensers . evaporators . heating coils. digesters. fluid piping

l sugar mills.dairies .breweries. food processing

l pharmaceuticals. chemical . petrol chemicals

l power plants

l paper&pulp manufacturing

l textile industries

l automobile exhaust pipes

l general engineering industries

l hospital and kitchen equipment

l furniture and interior decoration

 

Test Reports:

pmi test reports, en10204.3.1 certificate , nabl approved lab report on chemical and mechnical properties ndt or other test reports , 100% x-ray welding reports.

 

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  Hunan Gaoxing Steel Development Zone, No.1888 Purui South Rd, Wangcheng District,Changsha, Hunan, China

  0086-187-7406-7534

  inquiry@threewaysteel.com

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