321 Stainless Steel Pipe
Hunan Great supply a wide range of SS 321 / SS 321H Pipes and Tubes to our clients, which are sturdy in construction and ensure long service life.
Stainless Steel 321 Pipes (UNS S32100) is the basic austenitic 18/8 steel (Stainless Steel 304) stabilised by Titanium (321) or Niobium (347) additions. Stainless Steel 321 Tubes is a stabilized stainless steel which offers as its main advantage an excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 1500 Degree F (427 to 816 Degree C).
The addition of titanium in 321 stainless steel give some desired characteristics:
Prevents harmful carbide precipitation in the heat affected zone (HAZ) of the weld area
Imparts partial immunity to inter granular corrosion
Reduced embrittlement in the HAZ of the weld area
SS 321H Pipes (UNS S32109) is a modification of SS 321 Tubes with a higher carbon content, to provide improved high temperature strength. SS 321H Tubes is the higher carbon (0.04 - 0.10) version of the alloy.
Responds well to hardening by cold working
Good welding characteristics
Excellent corrosion resistance in a wide variety of corrosive media
High creep & stress rupture properties
Tube Range: 6.35 mm OD To 101.6 mm OD Guage: 25 SWG - 10 SWG
Outer Diameter: 3.00 mm - 219.10 mm
Wall Thickness: 0.40 mm - 12.70 mm
Schedules: 5, 10S, 10, 30, 40S, 40, 80, 80S, XS, 160, XXH
Length: Upto 30 meters, Custom Cut Length.
Hunan Great is the top leading manufacturer, supplier, stockholder and exporter of the high quality of industrial goods like Stainless Steel 321/321H pipes. The offered ranges of pipes are created as per national and international raw materials quality standards. The industry is offering a comprehensive range of tubes that is varying in standards, dimensions, and specifications. On the request of buyers, the pipes are easily made available at customized specifications. Thus, a buyer can buy the product as per own needs in different sizes, wall thickness, length, diameter etc. The product to all the global and national buyers is supplied at market leading rates.
Grade Specifications
STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
EN |
SS 321 |
1.4541 |
S32100 |
SUS 321 |
X6CrNiTi18-10 |
SS 321H |
1.4878 |
S32109 |
SUS 321H |
X12CrNiTi18-9 |
Chemical Composition
Element |
SS 321 |
SS 321H |
C |
0.08 max |
0.04 – 0.10 |
Mn |
2.0 max |
2.0 max |
Si |
1.0 max |
1.0 max |
P |
0.045 max |
0.045 max |
S |
0.030 max |
0.030 max |
Cr |
17.00 – 19.00 |
17.00 – 19.00 |
N |
0.10 max |
0.10 max |
Ni |
9.00 – 12.00 |
9.00 – 12.00 |
Ti |
5(C+N) – 0.70 max |
4(C+N) – 0.70 max |
Mechanical Properties
Element |
SS 321/321H |
Density |
8.0 g/cm3 |
Melting Point |
1457 °C (2650 °F) |
Tensile Strength |
Psi – 75000 , MPa – 515 |
Yield Strength (0.2%Offset) |
Psi – 30000 , MPa – 205 |
Elongation |
35 % |
Stainless Steel 321 / 321H Pipe & Tubes Other Available Products | |
Stainless Steel 321 Pipes | Stainless Steel 321H Tubes |
Stainless Steel 321 Seamless Pipes | Stainless Steel 321 Seamless Tubes |
Stainless UNS S32100 Welded Tubes | Stainless Steel 321H Welded Pipes |
SS 321 Pipes & Tubes Suppliers | SS 321H Seamless Pipes |
SS 321 Welded Pipes Dealer | SS 321H Pipes Exporter |
SS 321 Tubes Stockholder | Steel 321 Pipes & Tubes Distributors |
Stainless UNS S32109 Pipes | SS 321 Pipe & Tube Manufacturer |
Stainless Steel DIN 1.4541 Pipes | Stainless Steel DIN 1.4878 Pipes & Tubes |
Stainless Steel 321H EFW Pipes | Stainless 321 ERW Tubes |
SS 321 EFW Tubes | SS 321H ERW Pipes Stockist |
ASTM A213 Stainless Steel 321 Seamless Tubes | ASTM A312 Stainless Steel 321H Pipe |
The process of welded steel pipe:
Stainless Steel Alloys 321 and 321H pipe, flanges and fittings are common to the petroleum refining industries.
Alloy 321 and 321H is often used to make radiant superheaters, boiler tubes, high pressure steam pipes, and general refinery piping. They are also used for heavy-duty exhaust systems and manifolds.
Food Processing Industry |
Fabrication Industry |
Oil and Gas Industry |
Chemical Industry |
Plumbing |
General Purpose Applications |
Heating |
Water Supply Systems |
Power Plant |
Paper & Pulp Industry |