Japanese Industrial Standards (JIS) and British
Standard(BS)seamless pipes developed by the organization apply to a
wide variety of industrial services and technologies such as
automobiles, metallurgy, ships and medical equipment.
Seamless steel pipe is also called CDS pipes (Cold drawn seamless pipe). It's is used
widely in machining parts, shafts, bearings, cylinders having
strength of 75000 PSD tensile. It is a solid carbon steel rod which
is pushed on to the mandrel to form the shape of tube. It is
available in different sizes. The method for making cold-drawn
seamless pipes involves taking a round “billet” or bar of steel and
boring it in the center, turning it, cutting it, heating it to make
it more pliable, then "drawing" it (extruding or pulling it) to
make it a longer and thinner tube.
JIS and BS seamless pipe according to alloy, stainless steel or
carbon. It tests steel's properties, hardness, resistance to
corrosion, pitting, heat treating processes and others.
Size (mm) we can supply:
Hot-rolled: O.D.: 51-508; W.T.:7∼60; L: max 16000
Cold-drawn: O.D.: 10-50; W.T.:2∼10; L: max 16000
Hot-expanded:O.D.: 325-1020; W.T.:6∼50; L: max 12000 and other
specifications in accordance with customer requirements.
Beveled/black painting/ plastic caps/ in bundles/ steel strips/
Inspection and Test:
Chemical Composition Inspection, Mechanical Properties Test(Tensile
Strength, Yield Strength,Elongation, Flaring, Flattening, Bending,
Hardness, Impact Test), Surface and Dimension Test, Nodestructive
Test, Hydrostatic Test.
Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting, Epoxy
& Fbe Coating Painting as requested.
Orders for material under this specification should include the
following, as required, to describe the desired material
|Quantity||Feet, meters, or number of lengths|
|Name of material||Seamless Alloy Steel Pipe|
|Grade||STANDARD AND STEEL GRADE|
|Manufacture||Hot-finished or cold-drawn|
|Size using one of the following:|
|NPS and Schedule Number|
|Outside Diameter and Nominal Wall Thickness|
|Length||Specific or Random|