What is the difference between 4 16 stainless steel and 3 16 stainless steel?

4 16 is martensite and 3 16 is austenite.

4 16 stainless steel is a kind of stainless steel with good cutting performance. 4 16 stainless steel is mainly used to produce solenoid valves, micromotors and electrical components. All the above materials are free-cutting stainless steel, which is especially suitable for mass production of automatic lathes and CNC lathes.

4 16 stainless steel is considered as the material of machinable stainless steel *, which has reached such an excellent level due to its extra sulfur content. Compared with non-free cutting 4 10 stainless steel, extra sulfur forms liu manganese inclusions, which not only reduces the corrosion resistance, but also has the formability and weldability of 4 16.

Chemical formula of 4 16 stainless steel

Name: Martensite Stainless Steel

Standard: AISI, ASTM

Model: 4 16

UNS number: S4 1600

Domestic brand: Y 1Cr 13

characteristic

4 16 stainless steel has low carbon content and good corrosion resistance. 4 16 is a kind of free-cutting martensitic stainless steel, which can be strengthened by heat treatment. The strength and machinability of 4 16 are better than those of 304 and 3 16, and the friction coefficient is small, but the corrosion resistance is not as good as 304 and 3 16.

Chemical composition (%)

C: ≤ 0. 15

Manganese Mn: ≤ 1.25

Silicon Si: ≤ 1.00

Chromium Cr: 12.0 ~ 14.0

Nickel Ni: It is allowed to contain less than or equal to 0.60% nickel.

Phosphorus P: ≤ 0.06

Sulfur s: ≥ 0. 15

Molybdenum Mo: 0.60% or less molybdenum can be added.

4 16 stainless steel round bar, 4 16 stainless steel flat bar and 4 16 stainless steel square bar.

Common commodity names

4 16 stainless steel, 4 16 stainless steel

Characteristics of 4 16 stainless steel

Because of its poor welding quality, if welding work is needed, individuals will be instructed to use grade 4 10 as placement.

It has relative corrosion resistance in dry atmosphere, fresh water and moderate to mild alkali/acid.

Application of 4 16 stainless steel

Similar to Grade 4 10, bolts, nuts and gears commonly used in Grade 4 16 are commonly used in stainless steel, but they are also common in valve parts, pump and motor shafts and washing machine parts.