Painting Black Seamless Alloy Steel Tube / Pipe With Hot-expanded for Heat-exchanger Tubes

Executive Standard

ASTM A213

Materials

T2, T5, T5b, T5c, T9, T11, T12,T17, T21, T22, T23, T24, T36,T91, T92, T122, T911

Size

Outer Diameter

12.7 mm – 114.3 mm        

Wall Thickness

0.8mm -15mm

Length

Single random length/Double random length

5m-14m,5.8m,6m,10m-12m,12m or as customer\'s actual request

Ends

Plain end/Beveled,protected by plastic caps on both ends,cut quare, grooved, threaded and coupling,etc

Surface Treatment

Bare,Painting black,varnished,galvanized,anti-corrosion      

3PE PP/EP/FBE coating

Technical Methods

Cold-drawn/Hot-expanded

Testing Methods

Eddy current testing, Hydrostatic testing or Ultrasonic examination, NDT and also with chemical and physical property inspection

Packaging

Small pipes in bundles with strong steel strips,large in loose pieces; Covered with plastic woven bags; Suitable for lifting operation; Loaded in 40ft or 20ft container or in bulk

Also according to customer\'s requests

Application

boiler,superheater,and heat-exchanger tubes

Origin

Zhangjiagang Jiangsu Prov.China

Certificates

API ISO PED

Third Party Inspection

SGS BV TUV etc.

Grade

C

Mn

P≤

S≤

Si

Cr

Mo

V≥

T11

0.05-0.15

0.30-0.60

0.025

0.025

0.50-1.00

0.50-1.00

1.00-1.50

T12

0.05-0.15

0.30-0.61

0.025

0.025

≤0.50

0.80-1.25

0.44-0.65

T13

0.05-0.15

0.30-0.60

0.025

0.025

≤0.50

1.90-2.60

0.87-1.13

T2

0.10-0.20

0.30-0.61

0.025

0.025