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DIN1630 High Performance Seamless Circular Steel Tubes , Black Carbon Steel Pipe
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DIN1630 HIGH PERFORMANCE SEAMLESS CIRCULAR UNALLOYED STEEL TUBES

 

 

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: ≤660mm         

   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≤

ST 37.4

1.0255

0.17

0.35

≥ 0.35

0.040

0.040

ST 44.4

1.0257

0.20

0.35

≥ 0.40

0.040

0.040

ST 52.4

1.0581

0.22

0.55

≤ 1.60

0.040

0.035

 

 

MECHNICAL PROPERTIES:

 

STEEL GRADE

Tensile Strength

σb(Mpa)

N/mm2

Yield Strength σs(Mpa)

(WT in mm)

Elongation      δ(%)

(L=5do)

IMPACT

(DVM—TEST SAMPLE)

≤16

 
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