Brief introduction of martensitic chromium stainless steel 4Cr13 steel grade

4Cr13 is a martensitic steel produced in China by a large steel company. It contains about 14% chromium and has relatively low carbon content of 0.38-0.45 weight%. It has good mechanical properties, quite similar to the 420 series, but with a lower cost. 4 Cr13 as a stainless steel is widely used in the manufacture of many everyday objects such as paper clips, scissors, knives, and other hardware items.

In comparison with other martensitic stainless steels, 4 Cr13s relatively low carbon content makes it resistant to intergranular corrosion after welding. It is also an extraordinarily tough and hard steel, which makes it an ideal choice for applications requiring high hardness and wear resistance.

4 Cr13 has excellent corrosion resistance, making it an ideal choice for applications where it may be exposed to an aggressive environment. Its high chromium content gives it good corrosion resistance in a number of conditions such as saline solutions, weak organic acids, and some alkaline solutions. In addition to its corrosion resistance, 4 Cr13 also exhibits good temperature properties, boasting excellent warmth resistance in environments up to about 800℃. Its low carbon content makes it a good option for applications needing high temperatures and excellent strength.

One of the primary uses of 4 Cr13 steel is in the manufacture of cutlery and other kitchen items. Products made of 4 Cr13 stainless steel are generally considered to be high quality and very durable. The superior properties of chromium and stainless steel make it a good choice for items that will be exposed to the wet and acidic environments of the kitchen, from knives to frying pans. 4 Cr13 can also be used in many other applications such as decorative ornaments, architecture and engineering components, scissors, nippers, and even ice crushers.

4 Cr13 stainless steel has proven itself to be a versatile and efficient material for a variety of applications. With its corrosion resistance, toughness, wear resistance, and high temperature resistance, it can be used in a variety of environments, from kitchen items to engineering parts. With its relatively low cost, it is a great option for many applications and can be used in both small and large projects alike.

4Cr13 stainless steel, also known as 420 stainless steel, is a common martensitic stainless steel grade. It contains about 13% chromium, which provides good corrosion resistance, good corrosion resistance and machinability. 4Cr13 stainless steel is widely used in various applications such as cutting tools, bearings, springs, blades, chemical equipment and various structures.

4Cr13 stainless steel belongs to the martensitic family of stainless steel, is a kind of common steel, the most widely used one and first choice. Its composition is as follows: 4Cr13 pattern - according to the national standard of China GB/T1220-2007 (general provisions of stainless steel chemical composition) basic composition is C 0.36 ～ 0.45%, Si ≤ 1.0%, Mn ≤ 1.0%, P ≤ 0.04%, S ≤ 0.03%, Cr 11.5 ～ 13.4%, Cu≤ 0.3%, Nb≤ 0.14%, N ≤ 0.45%.

4Cr13 steel belongs to martensite type steels expanding from 12Cr13(1Cr17)and 8Cr13(2Cr13). As an improved steel grade over 12Cr13, it has higher strength, hardness and corrosion resistance than 12Cr13. And it can be heat treated to above HRC50, so it is an ideal material for manufacturing tools.

4Cr13 stainless steel is used in the manufacture of many products, ranging from knife blades to plastics injection moulds. In fact, it is commonly known in industry as “420 stainless steel” because it has a higher chromium content than other stainless steel grades.

Because 4Cr13 stainless steel has good wear resistance, corrosion resistance and hardenability, it can be used in the manufacture of medical instruments, kitchen utensils, food processing machinery, mechanical parts, etc.

In conclusion, 4Cr13 stainless steel can be used in a variety of applications and is an excellent choice for making tools and equipment due to its high strength, hardness and corrosion resistance.