
Product Name : ASTM A312/A213 Stainless Steel SS TP 321 Pipes &
Tubes Specification : DIN 1.4541
Stainless Steel 321 Welded Pipes is similar to Type 304 stainless
steel, however, it contains a Titanium addition of at least five
times the carbon content. This addition is made to reduce or
eliminate chromium carbide precipitation – resulting from welding
or exposure to high temperatures. Stainless Steel 321 Tubing
resistance to sensitization, coupled with its higher strength at
high temperature makes it suitable in application where Stainless
Steel 304 will become sensitized, or where Stainless Steel304L has
insufficient hot strength.
STANDARD | WERKSTOFF NR. | UNS | JIS | AFNOR | BS | GOST | EN |
SS 321 | 1.4541 | S32100 | – | – | – | – | – |
Grade | C | Mn | Si | P | S | Cr | N | Ni | TI | |
321 | Min | – | – | – | – | – | 17.0 | – | 9.00 | 5(C+N) |
max | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 19.0 | 0.10 | 12.00 | 0.70 max |
Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Elec Resistivity (nΩ.m) | |||
0-100°C | 0-315°C | 0-538°C | At 100°C | At 500°C | |||||
321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
321 | 515 | 205 | 40% | 95 | 217 |
Stainless Steel 321 Pipes | Stainless Steel 321 Tubes |
Stainless Steel 321 pipes | Stainless Steel 321 tubes |
AISI 321 seamless pipes | ASTM A269 TP 321 stainless steel seamless tubes |
UNS S32100 Pipes in Iraq | AISI 321 seamless Tubing in Iran |
AISI 321 welded pipes in Egypt | ASTM A213 TP 321 stainless steel seamless tubes |
SUS 321 Pipes Suppliers in Jordan | AISI 321 welded tubes |
DIN 1.4541 pipes in Peru | AISI 321 ERW Tubing in Dealer Singapore |
SS 321 pipes in Chile | SS 321 tubes Exporter in Bahrain |
AISI 321 ERW pipes in Malaysia | ASTM A249 TP 321 stainless steel welded tubes |
BEST PIPELINE EQUIPMENT CO.,LTD
Best Alloy Engineering Alloy Pipe as s a reference point for excellence in
the manufacture and distribution of fittings, piping, bends, forged flanges , clad products and specialties
for the upstream, midstream and downstream sectors of oil & gas, thermal and nuclear power generation.
The Company was founded in 1996 on the buttwelding fittings , forged flanges and steel pipes
with the aim of becoming a one-stop solution partner for their clients.
Best Alloy Engineering Alloy Pipe is one group company !
The company ’s business model is characterized by complete control of the supply chain, with
integrated production, stock and distribution operations. A strong market image reinforced by
genuine trust has enabled very rapid growth in all areas of the world.
It fixes assets of 8 million dollar, covers an area of 60,000 square meters.
In Best Alloy Pipe Engineering , there are more than 150 employees
with strong technical faculty in our company ,including 15 engineers, and 16 technicians.
Owning advanced flanges and tube supporting the production lines, the company has high technology skills in
forge and press, If push system, machining, cold forming, hot extrusion and heat treatment .
In addition, our factory also has the capabilities of chemical analysis, metallurgical analysis,
physical experiment, nondestructive testing and other advanced detection. Therefore, Best
Pipeline could produce different ranges of stainless steel, alloy steel, carbon steel flanges,
elbows, tees, reducers, caps, big bend, the socket series of pipeline components with high and
medium pressure, and various specifications, material steel pipe according to international and
domestic standards.
Best Alloy Pipe has a manufacturing license in
the field of
the petroleum, petrochemical, chemical, shipbuilding and other industries. The products have been widely used
in marine, power generation, natural gas, chemicals, chemical, petroleum, pharmaceutical, coal, aviation,
construction, water supply and many other fields.
In 2003, the company has provided a lot of well-known foreign trade enterprises to the domestic
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it has obtain the right to import and export goods in 2004, developing a direct business dealings
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Best Pipeline uses high-quality products and good service to
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The company will always insist on putting science and technology in the first and make every
effort to develop new product as customers’ requirements.
The company will always pursuit excellence along with the brilliant corporation spirit, and always
adhere to the purpose of "Quality first, Customer satisfaction", to provide customers with qualified
products and good service