The 420 stainless steel
alloy offers better resistance to corrosion and has more hardness and strength
than the 410 stainless steel alloy. This is precisely the reason why it was
created. The alloy provides for maximum corrosion resistance only when it is fully
hardened and is relieved from all kinds of stress. However, it cannot be used
in the industrial annealed conditions. A Stainless
steel 420 forged fittings supplier provides the fittings, tubes, sheets
and other alloy equipment to the chemical, petrochemical, oil, gas, food, pharmaceutical
and other industries.
Applications
Those applications
which require excellent corrosion resistance and who also have a requirement of
higher strength are fit for the 420 stainless
steel alloy. It is used in the form of forged fittings, sheets, tubes, pipes,
etc. in industrial environments that are highly oxidizing and more prone to
corrosion. It is also used in dental/surgery equipment, cutlery, tapes, scissors,
etc. the alloy is not sued in high heat conditions that involve a temperature
of more than 800 degrees Fahrenheit. This is so because it undergoes severe
loss in its corrosion resistance properties and also softens at high
temperatures.
Composition
of 420 alloy
The stainless
steel 420 forged fittings, sheets, tubes, pipes, etc. are composed of
the stainless steel 402 alloy. The alloy consists of 12 to 14% of chromium, 1%
of silicon, 1% of manganese, 0.15 % of carbon, 0.040% of phosphorus and 0.030 %
of sulfur. The high chromium content of alloy provides for better corrosion
resistance.
Corrosion
resistance
As said earlier, the alloy
offers extreme corrosion resistance only when it is hardened fully. It can
resist many different kinds of corrosion causing agents like mine water, fresh
water, atmosphere, carbonic acid, steam, crude oil, carbonic acid, ammonia, alcohol,
sterilizing solutions, perspiration, soaps etc.
Weldability
The alloy is not
extremely weldable because of its properties that are attributed to its
hardness ability. To avoid incidences of cold cracking, it is better to pre-heat
the alloy to a temperature of 550 degrees Fahrenheit. For achieving better
weldability, the alloy should be treated with heat after welding. Because of
the higher carbon content of the alloy, it requires both pre and post
weldability heating.
For any query visit our website--- https://jainsteel.com/stainless-steel-420-forged-fittings/
Jain Steels Corporation
700, Gali Kundewalan, Ajmeri
Gate,
Delhi-110006, India
Get in Touch:
Tel: +91-11-23233240 (35 extensions)
Indian Toll Free:
+91-9250360360 (10 extensions)
For Inquiries:
Email: inquiry@jainsteel.com
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