Bright Polished Stainless Steel Pipe / Welded Pipe Tube ASTM GB SUS
JIS EN Standard
Products Specification
Product Name | Welded Stainless steel pipe |
Standard | ASTM AISI DIN, EN, GB, JIS |
Steel Grade | 200 Series: 201,202
300 Series: 301,304,304L,316,316L,316Ti,317L,321,309s,310s
400 Series: 409L,410,410s,420j1,420j2,430,444,441,436
Duplex Steel: 904L,2205,2507,2101,2520,2304 |
Outer Diameter | 6-325mm(as required) |
Thickness | 0.4mm - 10.0mm |
Length | 6m / pcs or custom other fixed length as request |
Technique | Seamless/Welded |
Surface | pickling finishing, 2B , Hairline , polishing |
MOQ | 500 kgs |
Price Terms | FOB,CFR,CIF |
The introduction of stainless steel welded pipe
Stainless steel welded pipe is made of stainless steel strip or
sheet crimped by welding process. It has the characteristics of
high production efficiency, low cost, flexible specifications,
etc., and is widely used in petroleum, chemical, construction,
food, machinery and other fields. According to the different
welding process and surface treatment, stainless steel welded pipe
can be divided into many types, such as ordinary welded pipe,
polished welded pipe, bright welded pipe and so on.
Welding process
The main welding process of stainless steel welded pipe includes:
TIG welding (Tungsten inert gas welding) :
Welding is performed using tungsten electrodes and inert gases such
as argon.
Suitable for thin-wall pipe and high-precision welding, with high
weld quality and smooth surface.
Plasma welding:
The use of plasma arc welding, energy concentration, welding speed.
Suitable for thick wall pipe and high strength requirements.
Laser welding:
Laser beam welding, high precision, small heat affected zone.
Suitable for high precision, high quality welding requirements.
High Frequency Welding (HFW) :
Welding edges are heated by high frequency current, suitable for
mass production.
Low cost, high efficiency, but the weld quality is slightly lower
than TIG welding.
Submerged Arc Welding (SAW) :
It is suitable for the production of thick wall pipe and large
diameter pipe, and the welding efficiency is high.
specification
- Material: Common materials include 304, 304L, 316, 316L, 321, 310S,
etc.
- Outer diameter: usually 6mm to 2000mm, can be customized according
to demand.
- Wall thickness: Common range is 0.5mm to 30mm.
- Length: usually 6 meters, can also be customized according to
customer requirements.
- Surface treatment: polishing, pickling, sandblasting and other
treatments can be carried out according to demand.
Standard
The production and use of stainless steel welded pipes meet the
following international and industry standards:
- ASTM A312/A312M: Standard for seamless, welded, and cryogenically
processed Austenitic stainless steel pipes.
- ASTM A269: Universal Standard for seamless and welded Austenitic
stainless steel pipes.
- ASTM A358: Standard for high-temperature electric arc welding of
austenitic stainless steel pipes.
- EN 10217-7: Standard for welded stainless steel tubes for pressure
purposes.
- GB/T 12771: Welded stainless steel pipe for fluid transport.
- GB/T 21833: Austenite-ferritic duplex stainless steel welded steel
pipe.
- JIS G3459: Welded stainless steel pipe for pipes.
Apply
- Stainless steel welded pipe is widely used in the following fields:
- Oil and Gas Industry:Transmission pipeline, oil well pipe, natural gas pipeline.
- Chemical Industry:Corrosion resistant pipes, heat exchangers, reactors.
- Food and Beverage Industry:Pipeline, storage tank, food processing equipment.
- Construction industry:Structural support, decorative pipe, water supply and drainage
pipe.
- Machinery Manufacturing:Conveying equipment, mechanical components, hydraulic systems.
- Automotive industry:Exhaust pipe, decorative parts, structural parts.
- Energy industry:Nuclear power equipment, boiler pipes, heat exchangers.
- Pharmaceutical industry:High purity medium transport pipeline, bioreactor.
Stainless steel welded pipe with its efficient production process,
flexible specifications and a wide range of applications, has
become an indispensable material in industrial production and daily
life. Through different welding processes and surface treatments,
it can meet the needs of a variety of industries, especially in
corrosion resistance, high strength and hygiene requirements.
