440A seamless piping

Type 440A is a corrosion-resistant martensitic stainless steel containing approximately 17% chromium that is heat treated to provide a wide range of mechanical properties. This grade offers the excellent wear resistance of high carbon steel and the corrosion resistance of stainless steel. Optimum corrosion and hardness are obtained in the quenched and tempered state. Type 440A is used in tableware applications and dental and surgical instruments and is magnetic in both annealed and heat treated conditions.

440A stainless steel is used to manufacture bearing parts that work in corrosive environments and non-lubricated strong oxidation. The steel also has good high-temperature dimensional stability and can be used to manufacture corrosion-resistant high-temperature bearings and cutting tools whose temperature does not exceed 250°C. 440A stainless steel bearing steel is a martensitic stainless steel with higher hardness than 420 steel. Its other properties are similar to 420 steel, but its weldability is poor. It is usually not used as a welding material and is used to manufacture surgical medical tools.

Chemical Composition

Chemical Composition (wt%) limits for Type 440A stainless steel*

Element	440A
Carbon	0.60-0.75
Chromium	16.0-18.0
Molybdenum	0.75
Nickel	0.50
Manganese	1.00
Silicon	1.00
Phosphorus	0.040
Sulfur	0.030

product feature

440A stainless steel is a high-carbon martensitic stainless steel containing 0.6% to 0.75% carbon and 16% to 18% chromium. It has good corrosion resistance and hardness, but is more susceptible to wear than other stainless steel types. Its chemical composition includes: carbon C: 0.60~0.75%, chromium Cr: 16~18%, molybdenum Mo: ≤0.75%, silicon Si: ≤1.00%, manganese Mn: ≤1.00%, phosphorus P: ≤0.040%, Sulfur S: ≤0.030%.

application

Grade 440A stainless steel is widely used in the following applications:

Knives
Bearing
Gauge block
Mold
Valve components
turbine components
medical instruments
aircraft structural parts
Tools and measuring instruments

customer visit

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

How can we help?

Get in touch with us today for any service. We will reply you within 2 hours