440C stainless steel seamless

Stainless steel is a high-alloy steel that has high corrosion resistance compared to other steels due to its high content of chromium. Based on their crystal structure, they are divided into three types: ferritic steel, austenitic steel and martensitic steel. Another group of stainless steels are precipitation hardened steels. They are a combination of martensitic and austenitic steels.

Grade 440C stainless steel is a high carbon martensitic stainless steel. It has high strength, moderate corrosion resistance, good hardness and wear resistance. When heat treated, grade 440C achieves the highest strength, hardness and wear resistance of all stainless steel alloys. Its extremely high carbon content contributes to these properties, which makes 440C particularly suitable for applications such as ball bearings and valve parts.

Chemical Composition

C	Cr	Mn	Si	Mo	P	S	Fe
0.95-1.20	16.0-18.0	1.00	1.00	0.75	0.040	0.030	Balance

product feature

440: High-strength cutting tool steel with slightly higher carbon content. After appropriate heat treatment, it can obtain a higher yield strength. The hardness can reach 58HRC, which is among the hardest stainless steels. The most common application example is "razor blades". There are three commonly used models: 440A, 440B, 440C, and 440F (easy-to-process type).

application

Mainly used to manufacture bearing parts working in corrosive environments and non-lubricating strong oxidizing atmospheres. 440C has good high temperature dimensional stability, so it can also be used as corrosion-resistant high-temperature bearing steel. In addition, it can also be used to make high-quality cutting tools, such as medical scalpels, scissors, nozzles, bearings, etc. 440F: It is a steel type that improves the easy cutting performance of 440C steel. It is used in automatic lathes. Ordinary alloy steel has the same characteristics of hardening through quenching. Therefore, a wide range of different mechanical properties can be obtained by selecting the grade and heat treatment conditions. 440C has a lower ability to withstand dynamic loads.

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FAQ

Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?
A: Payment<=1000USD, 50% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment.or negotiable

Q: What are the advantages of your company ?
A: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.

Q:About 440C Smls Pipe product prices?
A:Prices vary from period to period due to cyclical changes in the price of raw materials.

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