Astm a479 304 Stainless Steel Bar with CE CertificateChina Manufacturer

Astm a479 304 Stainless Steel Bar with CE CertificateChina Manufacturer

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 3800 m.t./month

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Name	304 stainless steel round polished bar
Standard	AISI, ASTM, JIS,GB,EN,DIN
Grade	201/304/316/304L/316L
Technology	Hot Drawn and Cold Drawn
Form	Round/Square/Hexagonal Bar
Diameter	0.3 mm – 100mm
Length	Customized
The sizes or thickness of stainless steel Bar can be customized. Our customer service staffs are available 7/24.

*Type*	C	Si	Mn	P	S	Ni	Cr	Mo
*201*	*≤0.15*	*≤0.75*	*5.5-7.5*	*≤0.06*	*≤0.03*	*3.5-5.5*	*13.5-15.0*
*202*	*≤0.15*	*≤1.0*	*7.5-10.0*	*≤0.06*	*≤0.03*	*4.0-6.0*	*17.0-19.0*
*304*	*≤0.08*	*≤1.00*	≤2	*≤0.035*	*≤0.030*	*10.0~14.0*	*18.0-20.0*
*304L*	*≤0.03*	*≤1.00*	≤2	*≤0.035*	*≤0.030*	*8.0~11.0***	*18.0-20.0*
*316*	*≤0.08*	*≤1.00*	≤2	*≤0.035*	*≤0.030*	*10.0~14.0*	*16.0~18.5*	*2.0-3.0*
*316L*	*≤0.03*	*≤0.75*	≤2	*≤0.045*	*≤0.030*	*10.0~14.0*	*16.0~18.5*	*2.0-3.0*

Quality Speaks Volumes

Boro has developed and produced premium stainless steel fabrications for over five hundred manufacturing, military, and general industrial companies.

We've run thousands of jobs and thousands of part designs.

We have outstanding deliverability and are ISO BV SGS registered .

So you know you're getting a quality product.

Our experience with reducing costs for our customers through long-run jobs is proven and reliable.

With many long term customers, our stainless steel fabrication services

are low cost and high quality in this present world marketplace.

Boro pursues improvement in every department. Roughly one tenth of company revenue is spent on new technology, renovations, improvements, & strategic market preparation.

Our entire business model (prospect to job close) has been completely value streamed and most of our workflow is strictly managed & controlled.

We maintain records and backups of all pertinent job data.

PACK & DELIVERY

Packaging & Delivery

1, Packaging: seaworthy package or as required

2, Delivery: 35-45 days or based on quantity

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Application

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F A Q

FAQ

1, Your advantages?

professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale

2, Test & Certificate?

SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem

3, Factory or Trading Company?

CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.

4, Payment Terms?

30% TT as deposit and 70% before delivery.

Irrevocable L/C at sight.

Q: Are stainless steel bars suitable for high-temperature applications?: Stainless steel bars are indeed appropriate for high-temperature uses. Renowned for their exceptional ability to withstand heat, stainless steel maintains its strength and integrity even under extreme temperatures. Consequently, it is an ideal material for industries that require heat resistance, including aerospace, automotive, and chemical sectors. In particular grades, stainless steel bars can endure temperatures as high as 1200°C (2200°F), rendering them highly dependable for high-temperature applications. Furthermore, stainless steel's corrosion resistance enhances its suitability for environments where oxidation or chemical reactions might transpire.

Q: What are the different polishing techniques for stainless steel bars?: To achieve a polished finish on stainless steel bars, there are various polishing techniques available. One technique commonly used is mechanical polishing, where abrasive materials like sandpaper or buffing wheels are utilized to eliminate imperfections or blemishes on the bar's surface. This method involves multiple stages of polishing, starting with a coarse grit and gradually progressing to finer grits for a smooth and glossy finish. Another method is electro-polishing, which relies on an electrochemical process to remove a thin layer of material from the stainless steel bar's surface. This technique not only smoothens imperfections but also eliminates embedded contaminants, resulting in a highly polished and clean surface. Chemical polishing is an alternative option that entails the use of chemicals and acids to dissolve a thin layer of the stainless steel surface. It is particularly effective in removing oxide layers and creating a smooth and reflective finish. For a textured or matte finish, abrasive blasting is a more advanced technique. It involves propelling abrasive particles onto the stainless steel bar's surface using high-pressure air or water streams. This method is often employed for larger bars. Lastly, automated polishing machines can be employed to achieve consistent and high-quality finishes on stainless steel bars. These machines combine mechanical, chemical, and abrasive methods to attain the desired level of polish. Ultimately, the choice of polishing technique depends on factors such as the desired finish, size and shape of the stainless steel bar, and the desired level of automation. It is crucial to select the appropriate technique based on these factors to ensure a polished finish that meets the desired specifications.

Q: Do stainless steel bars have good resistance to scaling?: Stainless steel bars possess excellent resistance to scaling, as they do not form oxide layers on their surface when exposed to high temperatures. This resistance is attributed to the presence of a minimum of 10.5% chromium in stainless steel, which creates a protective layer of chromium oxide. This layer serves as a barrier, effectively preventing any further oxidation or scaling. Furthermore, stainless steel bars can be alloyed with other elements like nickel and molybdenum, further boosting their resistance to scaling in high-temperature settings. As a result, stainless steel bars are extensively utilized in critical applications that demand exceptional scaling resistance, such as high-temperature environments, furnaces, and heat exchangers.

Q: What are the different types of stainless steel bars used in mining equipment?: There are several different types of stainless steel bars that are commonly used in mining equipment due to their exceptional properties and durability. These types include: 1. Austenitic stainless steel bars: Austenitic stainless steel, such as grade 304 or 316, is widely used in mining equipment due to its excellent corrosion resistance and high strength. It can withstand harsh environmental conditions, including exposure to chemicals, acids, and saltwater. 2. Martensitic stainless steel bars: Martensitic stainless steel, like grade 410 or 420, is known for its high hardness and strength. It is often used in mining equipment that requires resistance to abrasion and impacts. Martensitic stainless steel bars are commonly used in applications such as crusher jaws, hammers, and wear plates. 3. Duplex stainless steel bars: Duplex stainless steel, such as grade 2205, offers a combination of high strength and excellent corrosion resistance. It is particularly suitable for mining equipment that operates in aggressive and corrosive environments. Duplex stainless steel bars are commonly used in pump shafts, valves, and other critical components. 4. Precipitation-hardening stainless steel bars: Precipitation-hardening stainless steel, such as grade 17-4 PH or 15-5 PH, is used in mining equipment that requires high strength and toughness. These stainless steels can be heat treated to achieve the desired mechanical properties. They are commonly used in conveyor systems, drill bits, and other heavy-duty mining equipment. 5. Ferritic stainless steel bars: Ferritic stainless steel, like grade 430, offers good corrosion resistance and high-temperature strength. Although it is not as strong as austenitic or martensitic stainless steel, it is still used in certain mining equipment applications, such as screens, grates, and sieves. It is important to select the appropriate type of stainless steel bar for mining equipment based on the specific requirements and conditions of the mining operation. Factors such as corrosion resistance, strength, hardness, and impact resistance should be considered to ensure optimal performance and longevity of the equipment.

Q: Can stainless steel bars be used in the power generation industry?: Yes, stainless steel bars can be used in the power generation industry. Stainless steel is a versatile and corrosion-resistant material that is widely used in various industries including power generation. Stainless steel bars are commonly used in power plants for a variety of applications. They are utilized in the construction of turbine blades, generator rotors, and other critical components that require high strength, durability, and resistance to corrosion and heat. Stainless steel bars also find applications in heat exchangers, condensers, and pipes used in power plants. The use of stainless steel bars in the power generation industry helps to ensure efficient and reliable operations, as they offer excellent mechanical properties and can withstand the harsh operating conditions typically encountered in power plants.

Q: Can stainless steel bars be used in the transportation aftermarket?: Yes, stainless steel bars can be used in the transportation aftermarket. Stainless steel is a versatile and durable material that offers excellent corrosion resistance, making it an ideal choice for applications in the transportation industry. Stainless steel bars can be used in various aftermarket components such as truck accessories, trailer parts, railings, and brackets, among others. They provide strength and stability while withstanding harsh environmental conditions, including exposure to moisture, chemicals, and extreme temperatures. Additionally, stainless steel bars offer aesthetic appeal and require minimal maintenance, making them a cost-effective solution for the transportation aftermarket.

Q: What are the different surface treatments available for stainless steel square bars?: Some of the different surface treatments available for stainless steel square bars include pickling, passivation, electro-polishing, and coating. These treatments are used to enhance the appearance, improve corrosion resistance, and provide a smooth and clean surface finish.

Q: How do you prevent stainless steel bars from rusting?: To prevent stainless steel bars from rusting, it is essential to keep them clean and free from any contaminants that may cause corrosion. Regular cleaning with mild soap or detergent and water, followed by thorough drying, is crucial. Additionally, applying a protective coating or using a corrosion-resistant finish can provide an extra layer of protection against rust. Proper storage in a dry environment and avoiding prolonged exposure to moisture are also key in preventing rust on stainless steel bars.

Q: Are stainless steel bars suitable for the production of shafts and axles?: Yes, stainless steel bars are suitable for the production of shafts and axles. Stainless steel has excellent strength, corrosion resistance, and durability, which are crucial properties for shafts and axles in various industries, including automotive, aerospace, and manufacturing. Stainless steel bars also offer high tensile strength and can withstand heavy loads, making them a reliable choice for these applications.

Q: How are stainless steel bars made?: Stainless steel bars are made through a process called hot rolling, where large billets of stainless steel are heated and passed through a series of rolling mills to gradually reduce their thickness and shape them into long, straight bars. This process helps to enhance the strength, durability, and corrosion resistance of the stainless steel.

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