Austenitic SS 321 Sheets and Plates
Grades 321/321H is the basic austenitic 18/8 steel (Grade 304) stabilised by Titanium. Grade 321/321H is the grade of choice for applications in the temperature range of up to about 900°C, combining high strength, resistance to scaling and phase stability with resistance to subsequent aqueous corrosion.
Chemical Properties
|
GRADE |
Cr |
Ni |
C |
Mn |
P |
Si |
Ti |
Fe |
S |
N |
|
|---|---|---|---|---|---|---|---|---|---|---|---|
|
SS 321/321H |
MIN % |
17 |
9 |
– |
– |
– |
– |
5x(C+N) |
– |
– |
– |
|
MAX % |
19 |
12 |
0.08 |
2 |
0.045 |
0.75 |
0.7 |
BALANCE |
0.03 |
0.1 |
321 SS plate and 321 SS sheet can be used for extended periods at elevated temperatures without compromising its corrosion resistance. Alloy 321/321H has equivalent corrosion resistance to sensitisation as the low carbon version 317L.
Properties
Grade 321 stainless steel sheet and plates are non-magnetic in nature, have higher hot strength, and are particularly suitable for high temperature structural applications. Alloy 321/321H stainless steel exhibits good general corrosion resistance that is comparable to SS 304. SS 321/321H steel offers higher creep and stress rupture properties than type SS 304.
Mechanical Properties
|
Grade |
Tensile Strength |
Yield Strength |
Elongation |
Hardness, MAX |
|
|---|---|---|---|---|---|
|
[MPA] |
[MPA] |
(% in 50mm) min |
HBW |
HRB |
|
|
SS 321/321H |
515 |
205 |
40 |
217 |
95 |
|
SS 321/321HH |
515 |
205 |
40 |
217 |
95 |
SS 321/321H / 321/321HH Sheets Plates respond well to hardening by cold working and are available at SS 321 plate suppliers. The amount of titanium content required in Stainless Steel 321/321H Sheets is indicative of the product percentage of carbon. It can be found on the 321 stainless steel data sheet. 321/321HH Sheets have good welding characteristics; and post-weld annealing is not normally required to restore its excellent performance in a wide range of corrosive conditions.
Physical Properties
|
Grade |
Density (g/cm3) |
Melting Point °C |
Elastic Modulus (GPa) |
Mean Co-eff of Thermal Expansion (μm/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat (J/Kg.K) |
Electrical Resistivity (nΩ.m) |
||
|---|---|---|---|---|---|---|---|---|---|
|
0-100°C |
0-100°C |
0-315°C |
0-538°C |
at 100°C |
|||||
|
SS 321/321H |
8 |
1400-1450 |
190-210 |
16.6 |
17.2 |
18.6 |
16.1 |
500 |
720 |
Specification
The austenitic Stainless Steel 310/310S sheet and plate or UNS S31000 specified by ASTM standard as ASTM A 240 or ASME SA-240 are readily available in different types such as, for example, SS 310/310S Plane sheet and Plate, Shim, Thin, Perforated, Polished, Diamond, Chequered, Hot rolled, Cold rolled, Annealed, Soft annealed , coils, clad plate, strip etc.
As per availability and requirement Alloy 310/310SSheets and Plate can be manufactured in different types burt also, they also has different types of finishing on surface such as for example, Brushed ,Polished t, Mirror finish, Mirror polished, Hot rolled(HR), Cold rolled (CR), 2B,2D, BA NO(8), SATIN(Met with Plastic coated). SS 321 plate price and sheet price is very affordable at 321 stainless steel sheet suppliers.
Application
Stainless Steel 321/321H Sheet & Plate are mainly used in paper and pulp handling equipment, Chemical and petrochemical processing equipment, Condensers in fossil and nuclear fueled power generation stations, Food processing equipment, Textile equipment.
