AISI Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Its very high carbon content is responsible for these characteristics, which make 440C particularly suited to such applications as ball bearings and valve parts.
AISI Grades 440A stainless steel and 440B are identical except for slightly lower carbon contents (0.60 - 0.75% and 0.75 - 0.95% respectively); these have lower attainable hardnesses but slightly higher corrosion resistances. Although all three versions of this grade are standard grades, in practice 440C is more available than the A or B variants.
440A stainless steel
440A grade stainless steels Chemical Composition
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
|
|
440A |
min. max. |
0.65 0.75 |
- 1.00 |
- 1.00 |
- 0.040 |
- 0.030 |
16.00 18.00 |
- 0.75 |
- |
- |
440A grade stainless steels Mechanical properties
|
Tempering Temperature (°C) |
Tensile Strength (MPa) |
Yield Strength 0.2% Proof (MPa) |
Elongation (% in 50mm) |
Hardness Rockwell (HR C) |
Impact Charpy V (J) |
|
Annealed* |
758 |
448 |
14 |
269HB max# |
- |
|
204 |
2030 |
1900 |
4 |
59 |
9 |
|
260 |
1960 |
1830 |
4 |
57 |
9 |
|
316 |
1860 |
1740 |
4 |
56 |
9 |
|
371 |
1790 |
1660 |
4 |
56 |
9 |
BEBON STEEL is a professional steel supplier. We have the most comprehensive service. one package service will be offered,including cutting,welding, drilling, shot blast cleaning, derusting, painting, galvanized, etc, our service will be around your requirement and ensure the perfect service.
The production process of AISI 440A grade stainless steel we offered are: Hot rolled, cold rolled, annealing, pickling, cutting edge.
AISI 440A grade stainless steel production process Normalizing: Cool AISI 440A grade stainless steel in the air after being heated to a proper temperature. The effects of normalizing and annealing are similar, but the organization received a finer. Normalizing is commonly used to improve the cutting performance, sometimes also used for the final heat treatment.
AISI 440A grade stainless steel is one of mainly products of BEBON STEEL. We have registered a large number of ex-stock. If you require AISI 440A grade stainless steel, we can send goods to you immediately. So, if you are interested in AISI 440A grade stainless steel, please contact BEBON STEEL.
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Tags: stainless steel, 440A steel, BEBON STEEL
