Description

AISI 420 steel is a type of stainless steel known for its high hardness and good corrosion resistance.

It is part of the martensitic stainless steel family, which means it can be hardened through heat treatment. Here are some key characteristics and applications.

Chemical Composition of AISI 420 steel.

Carbon:- 0.15% – 0.4%
Chromium:- 12% – 14%

Other elements may include manganese, silicon, and nickel in small amounts.

Properties OF AISI 420 steel.

Hardness: Can achieve high hardness levels (up to about 50 HRC) through heat treatment.

Corrosion Resistance: Moderate, suitable for many applications but not as resistant as austenitic stainless steels (like AISI 304 or 316).

Toughness:- Lower than that of austenitic steels, particularly in the hardened state.

Applications OF AISI 420 steel.

AISI 420 Corrosion Resistance steel used for making plastic and rubber moulds:- automotive parts, House hold, healthcare and industrials plastic products.

AISI 420 steel Corrosion Resistance used for making Cutting Tools:- Often used for knives, scissors, and surgical instruments due to its hardness and edge retention.

AISI 420 steel used for making Bearings: Suitable for applications requiring wear resistance.

AISI 420 steel for making Valves and Pumps: Used in some industrial applications for its balance of hardness and corrosion resistance.

Heat Treatment Quenching:-

Can be heat-treated to increase hardness; typically involves heating to around 980-1060°C and then quenching in oil or air.

Tempering:- Followed by tempering to reduce brittleness and improve toughness.

Overall, AISI 420 steel is valued in applications where hardness and wear resistance are critical, though users must be mindful of its corrosion resistance limits compared to other stainless steels.

size chest(in.) waist(in.) hips(in.)
XS 34-36 27-29 34.5-36.5
S 36-38 29-31 36.5-38.5
M 38-40 31-33 38.5-40.5
L 40-42 33-36 40.5-43.5
XL 42-45 36-40 43.5-47.5
XXL 45-48 40-44 47.5-51.5

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