Stainless Steel 321 in bars, flanges, pipe fittings and tubes

 Stainless Steel 321 is a stabilized austenitic stainless steel. It is stabilized for weldments subject to sever corrosive conditions and service from 800 to 1600 F. It is similar to stainless steel grade 304 but with a titanium amount of at least five times the level of carbon. This also helps advance the mechanical properties of the steel at higher temperatures.

Chemistry (range or maximum in %) 

GRADE C MN S NI CR OTHER

Stainless Steel 321 0.08 2.00 0.03 9.00/12.00 17.00/19.00 Ti 5X (C+N)

Min. to 0.70 Max.

Grade 321 Stainless Steel Bars Properties

GRADE SHAPE SIZE RANGE TENSILE KSI YIELD KSI ELONGATION % RED. OF AREA % BRINELL HARDNESS RELATIVE MACHINABILITY SPECIFICAGION

Stainless Steel 321 Rounds 1/4″ – 12″ 85 35 55 65 150 48% AMS 5645/ 

ASTM A-276/ 

A-182/A-479/A-193

Grade 321 Stainless Steel Pipe Fittings Properties

GRADE SHAPE THICKNESS SPECIFICATION

Stainless Steel 321 pipe fittings 3/16″ – 80″ AMS 5510

Grade 321 Stainless Steel Tubes & Pipes Properties

GRADE OD SIZE RANGE CONDTION TENSILE KSI YIELD KSI ELONGATION % ROCKWELL HARDNESS ASTM SPECIFICATION

Applications:

Airplane exhaust manifolds

Pump Shafts

Stainless Steel Flanges

Mechanical Seals

Heat Exchangers

Stainless Steel Pipe Fittings

Ball Valves

Stainless Steel Pipes

Boiler shells

Process equipment

Expansion joints

Cabin heaters

Fire walls

Flexible couplings

Pressure vessels

Categories: flanges, pipe fittings and tubes, Stainless Steel 321 in bars