In daily life, we often see products made of stainless steel,
so what is stainless steel? Whats inside the stainless steel?
This article will introduce in detail the characteristics,
type, grades, chemical composition, property and application,
material specifications and other information about stainless
steel.
What Is Stainless Steel
Stainless steel, also known as stainless acid-resistant steel,
is a ferroalloy material with excellent rust resistance,
corrosion resistance and formability. It has a variety of
surface treatments, and in the production process, it has good
heat treatment performance, good processing performance, high
efficiency, and has the best fire resistance among all metal
materials. And stainless steel is widely used in the fields of
electrical appliances, daily necessities and heavy
industry.
Stainless Steel Characteristics
1.Excellent corrosion resistance and rust resistance in various
corrosive media
2.The surface is smooth, bright, bright and beautiful, easy to
clean
3.Good wear resistance, heat resistance, oxidation resistance
and welding performance
4.Easy plastic processing, good polishing
5.Anti-fatigue, high strength, high toughness
6.Good durability and long service life
7.High temperature and low temperature resistance
8.Excellent thermal expansion performance and thermal
insulation performance
Stainless Steel Type
According to the crystal structure of stainless steel, it can
be divided into five types:
(1) Austenitic stainless steel
Included models are: AISI **1, **2, **1, **1L, **4, **9s, **0s,
**6L and other models.
(2) Martensitic stainless steel
The models included are: AISI **0, **4, **6, **6(Se), **0, **1,
**0A, **0B and other models.
(3) Ferritic stainless steel
Included models are: AISI **9, **0, **0Ti, **3, **4, **6, **9,
**1 and other models.
(4) Austenitic-ferritic duplex stainless steel
The models included are: AISI **5, **9, ***5, S****0, S****3,
S****0 and other models.
(5) Precipitation hardened stainless steel
The models included are: **0, 0Cr*7Ni4Cu4Nb, 0Cr*7Ni7Al,
0Cr*5Ni*5Ti2MoVB and other models.