- 321 Stainless Steel round bar
- 321 Stainless Steel forging
- 321 Stainless Steel sheet
- 321 Stainless Steel flat bar
- 321 Stainless Steel pipe
321 Stainless Steel
Production specification
Square-shape steel: 1mm to 4000mm
Plate steel:0.1mm to 4000mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-1800mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.
We serve you with our honesty, integrity, and professionality.
321 Stainless Steel
321 is a titanium stabilised austenitic stainless. The addition of titanium helps improve its welding properties. 321 is a stainless grade suitable for operating at temperatures above 300°C. 321 stainless is available in round bar only. |
Typical Analysis |
321 | |||||||
C. |
Mn. |
P. |
S. |
Si. |
Cr. |
Ni. |
Mo. |
Ti. |
0.08% |
2.00% |
0.045% |
0.03% |
1.00% |
17.00- |
9.00- |
1.00% |
5x |
max. |
max. |
max. |
max. |
max. |
19.00% |
12.00% |
max |
%C. |
Physical Properties 321 | ||||
Temperature | ||||
20ºC |
200ºC |
400ºC |
800ºC |
|
Modulus of elasticity |
20000 |
18500 |
17000 |
13500 |
kg/mm | ||||
Specific heat |
0.105 |
0.125 |
0.135 |
0.15 |
kcal/ºC | ||||
Specific electrical resistance |
0.7 |
0.8 |
1.0 |
1.15 |
(resistivity) | ||||
Mean value for: | ||||
20-100ºC |
20-200ºC |
20-400ºC |
20-800ºC |
|
Coefficient of Thermal Expansion |
17 |
17.5 |
18 |
19.5 |
x10-6 per ºC | ||||
Density g/cm3 at 20ºC |
7.9 |
|
||
Scaling temperature ºC |
875ºC |
|
Mechanical properties
Heat treatment
Machining
Welding performance
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