Complex 304 stainless steel parts with different surfaces are made using multi axis CNC machine tools. It has excellent corrosion resistance, heat resistance, low-temperature strength, and mechanical properties. Widely used in fields such as petrochemicals, light industry manufacturing, power industry, and food manufacturing.

 

 

We provide customized solutions for different industries, from aerospace, medical components, electronics to the new energy industry, and more. CNC machining ensures the accuracy and quality of products.

 

At XYC, our ISO certified CNC workshop is specifically designed for rapid prototyping and small batch production of end use components. XYC CNC Factory provides you with 24-hour quotation service and rapid production of samples. We are your best choice for machining parts and can customize manufacturing according to your project requirements.

 

 

Tolerance:	+/-0.01mm(In CNC machining, The tolerance is largely influenced by the geometric shape and material type of the part. Specific tolerance details for different parts )
Roughness:	Ra 0.1-Ra 3.2
Quality:	DIN,ASTM,GOST,GB,JIS,ANSI,BS;
Drawing format:	PDF,DWG,DXF,IGS,STEP
Authentication:	ISO9001:2015,ISO4001:2015,RoHS,SGS;
Size:	Length 1600mm*length 850mm
Material	Steel: carbon steel, alloy steel, stainless steel, 4140, 20 #, 45 #, 40Cr, 20Cr, etc
	AL: AL6061,AL6063,AL6061,AL7075,AL5052,etc
	Stainless steel: 201SS,301SS,304SS,316SS 17-4PH,etc
	Brass: C37700,C28000,C11000,C36000,etc
	Plastics:PTFE,PEEK,POM,PA,UHMW,PC,PBT,etc
Surface Treatment:	Steel	stainless steel	stainless steel
	Galvanization	Burnishing	Anodizing
	Black anodize	Passivation	Sandblasting anodizing
	Nickeling	Laser marking	Colorful anodizing
	Chroming	Sandblasting	Wire drawing
	Heat treatment	Â	Burnishing
	Powder coating	Â	Chroming

 

 

 

 

1.304 stainless steel

It is one of the most widely used and widely used austenitic stainless steels, suitable for manufacturing deep drawing formed parts, acid pipelines, containers, structural components, various instrument bodies, etc. It can also be used to manufacture non-magnetic and low-temperature equipment and components.

 

2.304L stainless steel

In order to address the serious intergranular corrosion tendency of 304 stainless steel caused by the precipitation of Cr23C6 under certain conditions, ultra-low carbon austenitic stainless steel has significantly better intergranular corrosion resistance in its sensitized state than 304 stainless steel. Except for slightly lower strength, other properties are the same as 321 stainless steel, mainly used for corrosion-resistant equipment and components that require welding but cannot undergo solid solution treatment. It can be used to manufacture various instrument bodies, etc.

 

3.304H stainless steel

The internal branch of 304 stainless steel has a carbon mass fraction between 0.04% and 0.10%, and its high-temperature performance is superior to that of 304 stainless steel.

 

4.316 stainless steel

Adding molybdenum on the basis of 10Cr18Ni12 steel gives the steel good resistance to reducing media and pitting corrosion. In seawater and various other media, the corrosion resistance is better than 304 stainless steel, mainly used as a corrosion-resistant material.

 

5.316L stainless steel

Ultra low carbon steel has good resistance to intergranular corrosion in sensitized state, and is suitable for manufacturing welded components and equipment with thick cross-sectional dimensions, such as corrosion-resistant materials in petrochemical equipment.

 

6. 316H stainless steel

The internal branch of 316 stainless steel has a carbon mass fraction between 0.04% and 0.10%, and its high-temperature performance is better than that of 316 stainless steel.

 

7. 317 stainless steel

The resistance to pitting corrosion and creep is superior to 316L stainless steel, used in the manufacturing of petrochemical and organic acid corrosion resistant equipment.

 

8. 321 stainless steel

Titanium stabilized austenitic stainless steel, with the addition of titanium to improve intergranular corrosion resistance and excellent high-temperature mechanical properties, can be replaced by ultra-low carbon austenitic stainless steel. Except for special occasions such as high temperature or hydrogen corrosion resistance, it is generally not recommended to use.

 

9. 347 stainless steel

Austenitic stainless steel stabilized with niobium can improve its intergranular corrosion resistance by adding niobium. Its corrosion resistance in corrosive media such as acid, alkali, and salt is the same as that of 321 stainless steel. It has good welding performance and can be used as both a corrosion-resistant material and a heat-resistant steel. It is mainly used in the fields of thermal power and petrochemicals, such as making containers, pipelines, heat exchangers, shafts, furnace tubes in industrial furnaces, and furnace tube thermometers.

 

10. 904L stainless steel

Super fully austenitic stainless steel is a type of super austenitic stainless steel invented by OUTOKUMPU company in Finland. Its nickel mass fraction is 24% -26%, and carbon mass fraction is less than 0.02%. It has excellent corrosion resistance and excellent resistance to non oxidizing acids such as sulfuric acid, acetic acid, formic acid, and phosphoric acid. It also has good resistance to crevice corrosion and stress corrosion. Suitable for various concentrations of sulfuric acid below 70 ℃, it has good corrosion resistance in any concentration and temperature of acetic acid and a mixture of formic acid and acetic acid under normal pressure. The original standard ASMESB-625 classified it as nickel based alloy, while the new standard classified it as stainless steel.

 

11. 440C stainless steel

Martensitic stainless steel has the highest hardness among hardenable stainless steel and stainless steel, with a hardness of HRC57. Mainly used for making nozzles, bearings, valve cores, valve seats, sleeves, valve stems, etc.

 

12. 17-4PH stainless steel

Martensitic precipitation hardening stainless steel, with a hardness of HRC44, has high strength, hardness, and corrosion resistance, and cannot be used at temperatures above 300 ℃. It has good corrosion resistance to the atmosphere and diluted acids or salts, and its corrosion resistance is the same as 304 stainless steel and 430 stainless steel. It is used for manufacturing offshore platforms, turbine blades, valve cores, valve seats, sleeves, valve stems, etc

 

 

 

 

 

What is the most suitable stainless steel for CNC machining?

In CNC machining, the following types of stainless steel are often considered suitable materials for machining:

Stainless steel 304 (AISI 304): This is one of the most common stainless steels, with good processing performance and corrosion resistance. It is suitable for processing many general purpose parts.

 

Stainless steel 316 (AISI 316): This is a type of stainless steel with higher corrosion resistance, suitable for applications that require higher corrosion resistance in marine environments and chemical treatment equipment.

 

Stainless steel 303 (AISI 303): This type of stainless steel has good machining performance and is suitable for high-precision and complex shaped parts processing. It also has good corrosion resistance.

 

Stainless steel 17-4PH (AISI 17-4PH): This is a type of stainless steel with good strength and corrosion resistance. It is suitable for applications that require high strength and corrosion resistance, such as aerospace and medical devices.

 

Is stainless steel processing difficult?

Cutting ability: Stainless steel has higher hardness and strength, so cutting stainless steel may require greater cutting force and stronger cutting tools compared to other materials. The selection of appropriate cutting tools and cutting parameters is crucial for achieving good machining results.

 

The toughness of stainless steel: Stainless steel materials have high toughness, which means that larger chips may be generated during the cutting process, rather than brittle chips. This requires appropriate cutting strategies and cutting lubricants to handle the removal and control of chips.

 

Thermal conductivity: Stainless steel has relatively low thermal conductivity, which may lead to heat accumulation and tool wear during processing. Therefore, appropriate cooling and the use of cutting lubricants are crucial for controlling temperature and extending tool life.

 

Corrosion resistance of stainless steel: The corrosion resistance of stainless steel may lead to increased tool wear during the machining process. Therefore, selecting appropriate tool materials and coatings, as well as appropriate cutting parameters, can reduce tool wear.

 

What materials cannot be CNC processed?

Soft materials: soft materials, such as rubber, foam, cork, etc., are usually not suitable for direct CNC processing. These materials often require other special processing methods, such as cutting, cutting, or pressing.

 

Brittle materials: Brittle materials, such as ceramics, glass, stone, etc., may not be suitable for CNC machining due to their fragility and susceptibility to cracking, as cutting forces may cause material fracture.

 

High temperature materials: High temperature materials, such as tungsten, molybdenum, titanium alloys, etc., have high melting points and high hardness, and may require special cutting tools and processing equipment for processing. In addition, the processing of high-temperature materials may also involve special safety measures and processing environments.

 

High hardness materials: Materials with extremely high hardness, such as hard alloys (hard metals) or diamonds, usually require specialized cutting tools and processing equipment for processing. The processing of these materials may require the use of superhard cutting tools and special machining parameters.

 

Special alloys: Some special alloys, such as high-temperature alloys, nickel based alloys, cobalt based alloys, etc., may require special cutting tools and processing strategies for CNC machining due to their high hardness, high melting point, and wear resistance.

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