Seamless steel pipe is made of whole round steel perforated, and
there is no weld on the surface of the steel pipe, which is called
seamless steel pipe. According to the production method, seamless
steel pipe can be divided into hot-rolled seamless steel pipe,
cold-rolled seamless steel pipe, cold-drawn seamless steel pipe,
extruded seamless steel pipe, jacking pipe, etc. According to the
cross-sectional shape, seamless steel pipe is divided into two
types: round and special-shaped, and special-shaped tubes have
square, oval, triangle, hexagonal, melon-seed-shaped, star-shaped,
and finned tube in a variety of complex shapes. The maximum
diameter is 900mm, and the minimum diameter is 4mm. According to
different uses, there are thick-walled seamless steel pipes and
thin-walled seamless steel pipes. Seamless steel pipes are mainly
used as petroleum geological drilling pipes, cracking pipes for
petrochemical industry, furnace pipes, bearing pipes and
high-precision structural steel pipes for automobiles, tractors and
aviation. Steel pipe without joints along the
perimeter of its cross-section. According to different production
methods, it is divided into hot rolled pipe, cold rolled pipe, cold
drawn pipe, extruded pipe, jacking pipe, etc., all of which have
their own process regulations. The materials include ordinary and
high-quality carbon structural steel (Q215-A~Q275-A and 10~50
steel), low alloy steel (09MnV, 16Mn, etc.), alloy steel, stainless
acid-resistant steel, etc. According to the use, it is divided into
two categories: general purpose (for water transmission, gas
pipelines and structural parts, mechanical parts) and special (for
boilers, geological exploration, bearings, acid resistance,
etc.).
Seamless steel pipes are widely used. 1. General-purpose
seamless steel pipes are rolled by ordinary carbon structural
steel, low-alloy structural steel or alloy structural steel, with
the largest output, mainly used as pipelines or structural parts
for transporting fluids. 2. According to different uses, it is
divided into three categories of supply: a. Supply according to
chemical composition and mechanical properties; b. Supply according
to mechanical properties; c. Supply according to hydrostatic test.
Steel pipes supplied according to Class A and B, if used to
withstand liquid pressure, should also be subjected to hydrostatic
tests. 3. Seamless tubes for special purposes include seamless
tubes for boilers, seamless tubes for chemical power, seamless
steel pipes for geology and seamless pipes for petroleum. Seamless
steel pipes have a hollow section and are widely used as pipelines
for transporting fluids, such as pipelines for transporting oil,
natural gas, gas, water and some solid materials. Compared with
solid steel such as round steel, steel pipe is lighter in weight
when the bending and torsional strength is the same, and it is an
economic cross-section steel. Widely used in the manufacture of
structural parts and mechanical parts, such as oil drill pipes,
automobile transmission shafts, bicycle racks and steel scaffolding
used in building construction, etc. with steel pipe to manufacture
ring parts, can improve material utilization, simplify
manufacturing processes, save materials and processing hours, has
been widely used steel pipe manufacturing. Product
NameCarbon Steel Seamless Pipe and Tube Bending Machines 170mm
Diameter Steel PipeFabrication StandardAPI 5L/5CT ASTM A53 A252
A500 EN10217 EN10219 Material GradeGR. A/B x42 x52
x65 GR.2 GR.3 S235 S355Out DiameterDN5 - DN2500Wall
Thickness3mm - 50mmLength max 75 MtrSurfacebare or with
coatingCoatingFBE, 3LPP, 3LPE, Epoxy, Coal Tar ExpoxyPackageby
piece or in bundlesMinimum Order Quantity5 TonsEZS
Advantage1.regular sizes in stock over 2000 tons for immediate
delivery2.small quantity with factory rate3.quality certificate as
per EN10204 3.1b issued by manufacturer4.expert technical and
export/import document consultant and support5. on-time response by
email, skype, website and online messages Q:
Are you a trading company or a manufacturer?A:We are a manufacturer
,we are integrated company of industry and tradeQ:Why should I
choose you?* You are promised to obtain the best quality, price,
and service.* Wide excellent experiences with after-sale service.*
Every process will be checked by responsible QC which ensures every
product's quality.*We pay attention to have long-term cooperation
with our clients , treat every client seriouslyQ:Do you have
experience for big projects ?A:yes , we do .we have good experince
for many big project , such as the power plant , Nuclear power
station , oil refiningproject , naturalgas project ...Abillity to
work with big project .Q: Can you produce the products according to
my own drawings?A: Yes, we can produce the products according to
your drawings.we have profession engineers
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