AISI 302 Stainless Steel
Classification :
Keywords:
Stainless Steel 321
Product Introduction
Alloy 321 (UNS S32100) is a titanium stabilized austenitic stainless steel with good general corrosion resistance. It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 – 1500°F (427 – 816°C). The alloy resists oxidation to 1500°F (816°C) and has higher creep and stress rupture properties than alloys 304 and 304L. It also possesses good low temperature toughness.
Alloy 321H (UNS S 32109) is the higher carbon (0.04 – 0.10) version of the alloy. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000oF (537°C). In most instances, the carbon content of the plate enables dual certification.
Alloy 321 cannot be hardened by heat treatment, only by cold working. It can be easily welded and processed by standard shop fabrication practices.
Common Applications
-
Aerospace – piston engine manifolds
-
Chemical Processing
-
Expansion Joints
-
Food Processing – equipment and storage
-
Petroleum Refining – polythionic acid service
-
Waste Treatment – thermal oxidizers
Technical Data
Chemical Properties:
|
% |
Cr |
Ni |
C |
Si |
Mn |
P |
S |
N |
Ti |
Fe |
|
321 |
min:17.0 |
min: 9.0 |
max:0.08 |
max:0.75 |
max:2.0 |
max:0.045 |
max:0.03 |
max:0.10 |
min:5*(C+N) |
Balance |
|
321H |
min:17.0 |
min: 9.0 |
min:0.04 |
min:18.0 |
max:2.0 |
max:0.045 |
max:0.03 |
max:0.10 |
min:5*(C+N) |
Balance |
Mechanical Properties:
|
Grade |
Tensile Strength |
Yield Strength 0.2% |
Elongation - |
Hardness |
|
321 |
75 |
30 |
40 |
217 |
Physical Properties:
|
Denstiy |
Coefficient of |
Thermal Expansion (min/in)-°F |
Thermal Conductivity BTU/hr-ft-°F |
Specific Heat BTU/lbm -°F |
Modules of Elasticity (annealed)2-psi |
|
at 68 °F |
at 68 – 212°F |
at 68 – 1832°F |
at 200°F |
at 32 – 212°F |
in tension (E) |
|
0.286 |
9.2 |
20.5 |
9.3 |
0.12 |
28 x 106 |
Warehouse Storage
As a steel supplier in Shandong Province, we have our own factory as follows: the seamless stainless steel pipe factory located in Wuxi. A welding stainless steel pipe factory located in Wuxi. A stainless steel coil processing workshop for cutting, winding, and unwinding steel coils.
Packing and shipping
Now the main business scope of our company covers various kinds of Stainless steel and carbon steel materials , such as hot rolled / cold rolled stainless steel coils / sheet , Seamless / welded stainless steel pipe ( tube ).
Technology
Customer conversation
We provide the products consultation , purchase plan suggestion , logistic service ( including the shipment service , custom works ,etc ).
Application field
The predecessor of Shandong Province Reliance Steel Material Co ., Ltd . founded in 2012, it belongs to Industry Bureau of Shandong Province . Aims to promote the development of Stainless / Carbon steel industry of .
Honor and qualification
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