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440F ss seamless pipe

440F Se stainless steel is a high carbon chromium steel. This alloy is designed to provide standard stainless steel properties with high hardness. After heat treatment, the hardness is estimated to be approximately HRC 60. This alloy is suitable for applications requiring machined parts with higher hardness values compared to other easy-to-machine grades.

440F is an easy-to-process stainless steel material and belongs to the 440 series of stainless steels. It is made by adding melt element material on the basis of 440C stainless steel, which can provide cutting performance and processing performance of high melt materials.

The chemical composition of 440F contains 0.95-1.20% carbon, 16-18% chromium, a small amount of silicon, manganese, steel, silicon and other elements. Compared with 440C stainless steel, 440F stainless steel has a higher sulfur content, usually between 0.15-0.35%.
Chemical Composition
Chemical Range For 440F SE
Element Minimum Maximum
Carbon 0.95 1.20
Chromium 16.0 18.0
Iron Balance --
Manganese -- 1.25
Molybdenum -- 0.60
Nickel -- 0.75
Nitrogen -- 0.08
Phosphorus -- 0.04
Selenium -- 0.15
Silicon -- 1.00
Sulphur -- 0.030
product feature
Good cutting performance: Due to the addition of sulfide, 440F has better cutting performance than 440C, which can reduce friction and heat during processing and improve processing efficiency and technology.
Good corrosion resistance: 440F has excellent corrosion resistance, especially in high temperature and high pressure environments.
Good mechanical properties: 440F Longji has high hardness, high strength and good optical properties, and is suitable for manufacturing high-demand mechanical parts.
Ease of processing: 440F has good processing performance and can manufacture parts of various shapes through forging, cold drawing, flooding and other processes.
It has high hardness and good wear resistance. When grinding, its disadvantage is that it is relatively sticky and heats up quickly, but it is easier to grind than any carbon steel and it is much easier to cut materials with a hand saw. The annealing temperature of 440F is very low, the hardness usually reaches HRC57-59, and the corrosion resistance and toughness are very strong. It is now more widely used in hand-made knives and high-quality factory-made knives.
application
440F is mainly used in the following fields:

Manufacturing parts with high precision and smooth surface, such as precision instruments, aviation parts and watches.
Manufacture parts that require high cutting performance, such as cutting tools, bearings, and valves.
Manufacturing parts under high temperature, such as valves, cylinders, etc.

Jack joint
Roller bearing
blade
manufactured kitchen accessories
cooking utensils
Knives
grill
cooking utensils
pan
sink

440F is a high-temperature vulcanized steel material with good cutting performance, corrosion resistance and mechanical properties. It is suitable for manufacturing parts that require high cutting performance and high-performance precision, and is also suitable for manufacturing parts below high temperatures.
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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 440F 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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