Stainless Steel 321 | EN 1.4541 | AISI 321 | SS 321 | INOX 321 | SUS321 | UNS S32100

321 Stainless Steel

Stainless Steel 321 | Werkstoff 1.4541 | AISI 321 | X6CrNiTi18 10 | SUS321 | 1.4878 Stainless Steel | Inox 321 | Z6CNT18 10 | SS321H | SAE 321 | UNS S32100

The 321 Stainless Steel (1.4541) with UNS 32100 is an austenitic stainless steel that gives the ideal corrosion resistance and has very low carbon content. Inox 321 (AISI 321) is majorly used in thermal and welding processes. In the annealed condition 1.4541 Stainless Steel (SUS321) is nonmagnetic and gets magnetic when welded. In the pulp and paper mills, Stainless Steel 321 (SAE 321) shows good resistance due to the excess acidic surrounding.

1.4541 Stainless Steel Properties

321 Stainless Steel has special properties typical to the product. The following sums up the qualities of 1.4541 Stainless Steel.

  • SS 321 has good corrosion resistance.
  • In acidic chloride environments, 321 SS has greater corrosion.
  • The resistance is high with molybdenum alloy percentage.
  • Inox 321 is resistant to sulphuric acid at around 120 degrees Fahrenheit.
  • AISI 321 has good formability and weldability.

Stainless Steel 321 Application

SUS321 Stainless Steel is used in flue gas desulfurization systems and is also a regular component in petrochemical industries. The chemical process vessels and pulp and paper industry also use SS 321(1.4541). It is also used in condensers in power generation, boiler casings, firewalls, jet aircraft components, industrial process equipment, oil refinery, etc.

SS317L Resistance and Processing

Corrosion Resistance
Stainless Steel 321 (EN 1.4541) acts like type 304 alloy in terms of corrosion resistance.Moreover, SS 321 has more resistance to  inter granular corrosion as compared to alloy 304 due to addition of Titanium in it. Long-term exposure to temperature between 900°F – 1500°F may deteriorate its resistance against general corrosion.

Formability
Type 321 is slightly more difficult to form as compared to 301, 304 and 305 due to the presence of certain elements in it. However, it can be readily formed and drawn by applying higher pressure.

Weldability
The presence of Titanium in Stainless Steel 321 (DIN 1.4541) reduces carbide precipitation during welding. Weld filler AWS E/ER 347 or E/ER 321 is recommended with this material. This alloy 321 can be welded by common resistance and fusion techniques.

Hear Treatment
SS 321 is non-hardenable by heat treatment. For Annealing this material heat it between temperature range 1750-1050°F.

Forms of Stainless Steel 321

SS321 Chemical Composition :

Element:Content (%)
Cr 17.00 -19.00
Ni9.00 -12.00
Mn2.00
Si0.75
P0.045
C0.08
S0.03
Ti5 x (C + N) -0.70
N0.10
FeBalance

SS321  Mechanical Properties :

TemperAnnealed
Yield Strength
0.2% Offset
psi (min.)30, 000
(MPa)205
Ultimate Tensile
Strength
psi (min.)75, 000
(MPa)515
Elongation
in 2 in.
% (min.)40
Hardness(max.)217 Brinell

SS321  Physical Properties :

Density7.920 g/cm^3
Specific Heat0.12 BTU/lb-°F (32 – 212°F)
Modulus of Elasticity28.0 x 10^6 psi
Thermal Conductivity 200°F (100°C)9.3 BTU/hr/ft^2/ft/°F
Melting Range
2550 – 2635°F
Electrical Resistivity72 Microhm-cm at 20°F

SS 321 Applications :

  • Automotive Exhaust System
  • Chemical / petrochemical processing
  • Equipment for pollution control (flue gas desulfurization) Plants
  • Waste disposal industries
  • Sulfuric acid reactors.
  • Organic chloride process equipment.
  • Equipment for processes utilizing halide or acid catalysts.
  • Pulp and paper processing
  • Oil refinery

 Equivalent Grades and Other Names :

  • SS 321
  • Alloy 321
  • Inox 321
  • AISI 321
  • UNS S32100
  • ASTM 321
  • SAE 321
  • Werkstoff – WNR 1.4541
  • EN 1.4541
  • DIN 1.4541
  • Germany DIN – X6CrNiTi18-10
  • France AFNOR – Z6CNT18-10
  • Japan JIS – SUS 321
  • UK BS – 321S31
  • Italy UNI – X6CrNiTi18-11
  • China GB – 0Cr18Ni10Ti / 1Cr18Ni11Ti / H0Cr20Ni10Ti
  • Sweden SS – SS2337
  • Russia GOST – 08KH18N10T / 08KH18N12T / 12KH18N10T

Siddhagiri Metals and Tubes – 1.4541 Stainless Steel Supplier Manufacturer :

  • Stainless Steel 321 Pipes

  • Stainless Steel 321 Tube

  • Stainless Steel 321  Pipe Fittings

  • Stainless Steel 321  Tube Fittings 

  • Stainless Steel 321  Flanges  

  • Stainless Steel 321  Forged Fittings 

  • Stainless Steel 321  Fasteners

  • Stainless Steel 321  Sheet Plate

  • Stainless Steel 321  Bar

Whatever may be the specification, grade or service, we offer the best solution for all the queries. Our inventory position and worldwide business relationships make us a leader in the distribution industry. All our products are fabricated from high quality raw materials. These products are manufactured under the supervision of our experienced experts using latest technology. As a Renowned supplier of Inconel, Monel, Hastelloy, Duplex stainless steel, Super Duplex stainless steel, cupro Nickel, Alloy 20 and SMO 254 supplier our ability to supply  products on a project basis is one of our strongest competences and is unsurpassed in this business worldwide.

Summary
Review Date
Reviewed Item
Stainless Steel 321 (UNS S32100)
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