ASTM A312 welded stainless steel pipe TP304 round pipe TP304 hollow
rod TP304 welded round pipe
Among stainless steel products, stainless steel pipes are widely
used in various industries because of their good ductility. As a
hollow long cylindrical steel, stainless steel pipe is used as a
pipeline for conveying fluid, mainly widely used in petroleum,
chemical, medical, food, light industry, mechanical instrumentation
and other industrial pipelines and mechanical structural
components.
Stainless steel pipes are mainly divided into two basic categories:
seamless stainless steel pipes and welded stainless steel pipes
(referred to as welded pipes). The main difference between the two
is whether there is a weld on the inner wall of the pipe.
| Product name | Stainless Steel Welded pipe |
| Material | 304/L,316/L,321,317L,310S,347H,904L,S31803,S32205, S32750 |
| Size | 6mm-254mm |
| Thickness | 0.89mm-6.0mm |
| Surface treatment | Pickling and annealing , mirror Polishing 180#/240/320/400 |
| Technology | Cold drawing,Cold/Hot rolling |
| Standards | GB,ASTM,ASME,JIS,DIN,GOST,ISO... |
| Applications | Petroleum,chemical,power,gas,metallurgy, shipbuilding,
construction, chemical,Food,beer.decorate.fluid etc |
| MOQ | 1TON |
| Delivery time | 25 days after receipt of advanced payment |
| Packing | Woven bag, Plywood case,as customers’ requirement |
Stainless steel pipe chemical compositions
| C | Mn | P | S | Si | Cr | Ni | Mo |
| TP304 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | -- |
| TP304L | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-13.0 | -- |
| TP316 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 11.0-14.0 | 2.00-3.00 |
| TP316L | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
| TP321 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 | 9.0-12.0 | -- |
| TP317L | 0.035 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 11.0-15.0 | 3.0-4.0 |
| TP310S | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 24.0-26.0 | 19.0-22.0 | 0.75 |
| TP347H | 0.04-0.10 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 | 9.0-13.0 | -- |
| TP904L | 0.02 | 2.00 | 0.045 | 0.035 | 1.00 | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 |
| S31803 | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 |
| S32205/2205 | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 |
| S32750/2507 | 0.030 | 1.20 | 0.035 | 0.020 | 0.80 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 |
Stainless steel seamless pipe
Stainless steel seamless steel pipe, like its name, has no weld
seam. When it is made, it uses round tube billet as raw material
for perforation, and is made by cold rolling, cold drawing or hot
extrusion production process. There are no solder joints.
Stainless Steel Welded Pipe
The stainless steel welded pipe is welded by steel plate or steel
strip after being crimped and formed by the unit and the mold.
There is generally a weld on the inner wall of the pipe.
Welded Stainless Steel Pipe/Stainless Steel Tube
| Ⅰseries | Ⅱseries | Europe Standard |
| DN | Out diameter | Thickness | Out diameter | Thickness | Out diameter | Thickness |
| DN15 | 16 | 0.8 | 15.9 | 0.8 | 18 | 1 |
| DN20 | 20 | 1.0 | 22.2 | 1.0 | 22 | 1.2 |
| DN25 | 25.4 | 1.0 | 28.6 | 1.0 | 28 | 1.2 |
| DN32 | 32 | 1.2 | 34 | 1.2 | 35 | 1.5 |
| DN40 | 40 | 1.2 | 42.7 | 1.2 | 42 | 1.5 |
| DN50 | 50.8 | 1.2 | 48.6 | 1.2 | 54 | 1.5 |
| DN60 | 63.5 | 1.5 | 63.5 | 1.5 | 63.5 | 1.5 |
| DN65 | 76.1 | 2.0 | 76.1 | 2.0 | 76.1 | 2.0 |
| DN80 | 88.9 | 2.0 | 88.9 | 2.0 | 88.9 | 2.0 |
| DN100 | 101.6 | 2.0 | 108 | 2.0 | 108 | 2.0 |
| DN125 | 133 | 2.5 | 133 | 2.5 | 133 | 2.5 |
| DN150 | 159 | 2.5 | 159 | 2.5 | 159 | 2.5 |
| DN200 | 219 | 3.0 | 219 | 3.0 | 219 | 3.0 |
| DN250 | 273 | 4.0 | 273 | 4.0 | 273 | 4.0 |
| DN300 | 325 | 4.0 | 325 | 4.0 | 325 | 4.0 |
The smoothness of the inner wall of the stainless steel decorative
pipe is good, which avoids the occurrence of impurity condensation.
It is the most ideal material for construction. If the inner wall
of the pipe fittings produced by cold-rolled coils is smooth, it
can reach the industrial mirror level, and the flow resistance of
stainless steel pipe fittings at low flow rates The coefficient is
2/5 of the carbon steel pipe, which reduces the transportation
cost.
The temperature resistance of stainless steel decorative pipe is
very good. Some pipes will precipitate harmful substances at 40
degrees, and produce peculiar smell. Some pipes corrode very fast
on the inner wall at a certain temperature, which shortens the
service life of the pipe fittings, and stainless steel can be used
at minus 270 degrees to 400 degrees. It can work safely for a long
time at a certain temperature, and its performance is very stable.
Stainless steel pipe application
Stainless steel decorative tubes have high tensile strength.
The stainless steel decorative tube has excellent wear resistance.
If the pipe fittings are easily eroded by the water flow, it will
become a killer of human health. Stainless steel fittings can
withstand operating in fluid environments up to 20 m/s.
Stainless steel decorative pipe tonization effect is very unique.
The pH value in water, air, dissolved oxygen, impurities, water
treatment agents, etc. can cause corrosion of pipe fittings. The
stainless steel pipe fittings have a thin and dense oxide film, and
its function is to react with the oxidizing agent, thus preventing
the further occurrence of the oxidation reaction. And other metal
pipes have almost no such function of tonization.
FAQ
Q1:What product information do I need to provide?
A:Please kindly provide the grade, width, thickness, surface
treatment requirement should you have and quantities you need to
purchase.
Q2:It's my first time to import steel products, can you help me
with it?
A:Sure,we have agent to arrange the shipment, we will do it
together with you.
Q3:What ports of shipment are there?
A:Under normal circumstances, we ship from Shanghai, Tianjin,
Qingdao, Ningbo ports, you can specify other ports according to
your needs.
Q4:What about product prices information?
A:Prices various according to periodic price changes of raw
materials.
Q5:What is your terms of payment ?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30%
T/T in advance ,balance before shipment or based on BL copy or LC
at sight.
Q6.Do you provide custom made Products service?
A: Yes,if you have your own design , we can produce according to
your specification and drawing.
Q7:How long does your delivery time take?
A:In general, our delivery time is within 5-10 days, and may be
longer if the quantity is extremely large or special circumstances
occur.
Q8:How to pack the products?
A: Standard export sea-worthy packaging, the inner layer has a
waterproof paper outer layer with iron packaging and is fixed with
a fumigation wooden pallet. It can effectively protect products
from corrosion and various climate changes during ocean
transportation.
Q9:Do you provide free samples?
A: Yes, we can provide a free sample for testing,buyer should bear
all the shipping costs.
If you have further questions, please feel free to contact us via:
Contact information: Jeff Mobile/WeChat/whatsapp: +86 18921116238
E-mail: jeff@edesteel.com
We keep providing high-quality products and competitive prices to
ensure the interests of customers. We highly value each of our
customers and value the relationship, we see them not only as
business partners but as true friends. Will maintain good service
and put the interests of customers first.
