- 303 1.4305 Stainless Steel round bar
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- 303 1.4305 Stainless Steel flat bar
- 303 1.4305 Stainless Steel pipe
303 1.4305 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.
303 1.4305 Stainless Steel
303 is a sulphur bearing austenitic free machining stainless. 303 stainless offers excellent corrosion resistance with improved machineability to the more popular 304 stainless grade. As with other austenitic stainless steel grades 303 stainless offer excellent toughness though the higher sulphur content reduces the toughness slightly in 303 stainless. 303 stainless will give good oxidation resistance in occasional service up to 750ºC and in continuous service up to 870ºC (but this is not recommended for 303 grade stainless) The higher sulphure content of 303 stainless steel gives the grade poor weldability and reduced formability compared with other austenitic stainless specifications. |
Typical Analysis |
303 |
|
|
|
|
|
C. |
Mn. |
P. |
S. |
Si. |
Cr. |
Ni. |
0.15% |
2.00% |
0.05% |
0.15% |
1.00% |
17.00- |
8.00- |
max. |
max. |
max. |
min. |
max. |
19.00% |
10.00% |
Physical Properties 303 | ||||
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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