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Chhajed Steel & Alloys Pvt.Ltd is a reputed Manufacturers, Suppliers & Exporters of Premium quality of ASTM A 671 Carbon Steel Welded Pipes & Tubes. These pipes & tubes comes in standard as well as Customer defined dimensions. This gives the unique features. Their durability, dimensional accuracy and corrosion resistance makes them a popular choice.

Characteristics of Carbon Steel A671 are as follow:

  • Excellent strength and ductility
  • Low-temperature services
  • Better weldability
  • Greater toughness

ASTM A 671 Carbon Steel Welded Pipes & Tubes possess higher strength with low coefficients of thermal conductivity when compared to alloy steels. We offer these products competitive price in the market. These pipes & tubes are commonly used in :

  • Oil & Gas Industries
  • Power Plants
  • Boilers
  • Ships

Specification
Standard : A671
Sizes Range : 12" - 24"
Schedules : SS 5, S 10, S 20, S 40, S 60, S XS, S 80, S 100, S 120, S 140, S 160, S XXS

Chemical Requirements :

Specification Steel grade Chemical composition Remarks
C Si Mn P S Ti
                 
Pipes for pressure service 
ASTM A671, A672
-/A45 -/0.17 - 0.98 0.035 0.035 - A671/
A672
-/A50 -/0.22 -
CA55/A55 0.28 -
-/B55 -/0.20 0.13
~0.45
CB60/B60 0.24
CB65/B65 0.28
CB70/C70 0.31 1.30
-/C55 -/0.18 0.55
~0.98
CC60/C60 0.21
CC65/C65 0.24 0.79
~1.30
CC70/C70 0.27

Mechanical Properties :

Products Steel Grade BASE METAL MECHANICAL COMPOSITION Welding point tensile strength (N/mm2) Remarks
Yield point (N/mm2) Tensile Stregth (N/mm2) Test Pieces Elongation (%)
Pipes for pressure service ASTM A671, A672 -/A45 -/165 -/310~450 - -/30 -/310~450 A671/ A672
-/A50 -/185 -/345~485 -/28 -/345~485
CA55/A55 205 380~515 27 380~515
-/B55 -/205 -/380~515 -/27 -/380~515
CB60/B60 220 415~550 25 415~550
CB65/B65 240 450~585 23 450~585
CB70/B70 260 485~620 21 485~620
-/C55 -/205 -/380~515 -/27 -/380~515
CC60/C60 220 415~550 25 415~550
CC65/C65 240 450~585 23 450~585
CC70/C70 260 485~620 21 485~620


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