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Low Tensile Carbon Steel Seamless Boiler Tubes BS3059-1 Grade 320 OD 12 - 127mm

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BS3059-1 STEEL BOILER AND SUPERHEATER TUBES

Part 1: Specification for low tensile carbon steel tubes without specified elevated temperature properties

 

 

Specifications:

 

Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling

Ends: PE, ends caps

Marking: as per requirement

Delivery Condition: Annealed/Normalized/Tempered

Size:(mm)
      OD: 12 – 127mm          WT: 1 – 12.5mm

   or as per customer’s requirement
Length: ≤16m. Fixed Length (6m,9m,12m, 16m or as per requirement) or random length

Package: Hexagonal Bundles with steel strips and plastic wrapping outside/Wooden box/Wooden crate/Steel frame/As per customer’s requirement

 

 

CHEMICAL COMPOSITION (%):

 

CHEMICAL COMPOSITION (CAST ANALYSIS) IN%

Grade

C≤

Si

Mn

P≤

S≤

320

seamless

0.16

0.10~0.35

0.30~0.70

0.040

0.040

 

 

MECHNICAL PROPERTIES:

 

Grade

Tensile Strength  σb(Mpa)

Yield Strength σs(Mpa) 

Elongation      δ(%)

 
 

320

seamless

320~480

 
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