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 safe for drinking water applications?: Indeed, drinking water applications can rely on the safety of stainless steel bars. This material, known for its resistance to corrosion, finds widespread use in the food and beverage sector, including for drinking water purposes. Its non-reactive nature guarantees the absence of any detrimental substances in the water, making it a secure option for contact with drinking water. Moreover, the convenience of cleaning and maintaining stainless steel bars ensures the continual safety and purity of the water by keeping it free from impurities.

Q: What are the typical dimensions of stainless steel bars?: The dimensions of stainless steel bars can differ depending on their intended use and application. Nonetheless, there are some commonly available standard dimensions. Various shapes of stainless steel bars are typically found, including round, square, hexagonal, and flat bars. Round bars usually have a diameter ranging from 1/8 inch to 24 inches or more. The length of these bars can vary but is often around 12 feet or 20 feet. Square bars generally have dimensions ranging from 1/8 inch to 6 inches in both width and thickness. Hexagonal bars, as their name suggests, have six sides and come in dimensions ranging from 1/8 inch to 3 inches. On the other hand, flat bars have a rectangular cross-section with varying widths and thicknesses. The width of flat bars typically ranges from 1/8 inch to 12 inches or more, while the thickness can vary from 1/8 inch to several inches. It is important to keep in mind that these dimensions serve as general guidelines, and specific requirements may fluctuate depending on the project or industry. Stainless steel bars can also be customized to meet specific dimensions, lengths, and tolerances as needed.

Q: How do you determine the quality of stainless steel bars?: To determine the quality of stainless steel bars, various factors need to be considered. These include assessing the grade and composition of the stainless steel, inspecting its surface finish and appearance for any imperfections or defects, checking for accurate dimensions and tolerances, and ensuring it meets relevant industry standards and specifications. Additionally, conducting mechanical tests such as hardness, tensile strength, and corrosion resistance evaluations can help determine the overall quality and performance of stainless steel bars.

Q: How do stainless steel bars resist stress corrosion cracking?: Stainless steel bars resist stress corrosion cracking due to their unique composition and properties. Stress corrosion cracking (SCC) is a type of corrosion that occurs under combined tensile stress and a specific corrosive environment. Stainless steel bars are primarily made of iron, along with a minimum of 10.5% chromium and other alloying elements such as nickel, molybdenum, and titanium. The addition of chromium forms a protective passive layer on the surface of the steel, known as chromium oxide. This oxide layer is highly stable and self-repairing, preventing further corrosion from occurring. Moreover, the alloying elements in stainless steel enhance its resistance to corrosion and other forms of degradation. Nickel, for example, increases the strength and toughness of the steel, while molybdenum improves its resistance to pitting and crevice corrosion. These alloying elements work together to provide an enhanced resistance to stress corrosion cracking. Additionally, stainless steel bars are often heat-treated to further enhance their resistance to SCC. Heat treatment processes like annealing, solution annealing, and stress-relieving can modify the microstructure of the steel, reducing the risk of SCC. Furthermore, controlling the grain size and orientation through heat treatment can enhance the resistance of stainless steel bars to stress corrosion cracking. Overall, the unique composition, passive oxide layer, presence of alloying elements, and appropriate heat treatment contribute to the exceptional resistance of stainless steel bars to stress corrosion cracking. These properties make stainless steel bars a preferred choice in applications where they are subjected to harsh environments and high mechanical stresses.

Q: What are the different types of stainless steel bar surface defects?: There are several different types of surface defects that can occur on stainless steel bars. Some of the most common defects include: 1. Scratches: These are visible marks on the surface of the bar caused by contact with a sharp object or abrasive material. Scratches can vary in depth and severity, and may impact the aesthetic appeal of the bar. 2. Pitting: Pitting is the formation of small, localized craters or holes on the surface of the bar. This defect is typically caused by chemical reactions or exposure to corrosive environments. Pitting can lead to reduced mechanical strength and potential failure of the bar. 3. Stains: Surface stains can occur due to exposure to corrosive substances or improper cleaning methods. These stains can be discolored spots or patches that are difficult to remove and may affect the appearance of the bar. 4. Scale: Scale is a layer of oxide or other impurities that can form on the surface of stainless steel bars during the manufacturing process. This defect can be caused by improper heat treatment or inadequate cleaning procedures. Scale can reduce the corrosion resistance and mechanical properties of the bar. 5. Surface roughness: Stainless steel bars may exhibit uneven or rough surfaces due to improper finishing or handling. This defect can impact the functionality and aesthetic appeal of the bar, and may require additional processing to achieve the desired surface smoothness. 6. Surface contamination: Contaminants such as oil, grease, or dirt can adhere to the surface of stainless steel bars during handling, storage, or transportation. These contaminants can affect the corrosion resistance and cleanliness of the bar, and may require thorough cleaning to remove. It is important to note that these surface defects can vary in severity and impact on the performance of the stainless steel bar. Manufacturers and users should implement proper quality control measures to minimize the occurrence of these defects and ensure the desired surface quality of the bars.

Q: Are stainless steel bars resistant to staining?: Yes, stainless steel bars are highly resistant to staining due to their chromium content, which forms a protective layer on the surface, preventing corrosion and staining.

Q: Can stainless steel bars be used in food preparation?: Indeed, stainless steel bars are suitable for food preparation purposes. The utilization of stainless steel in food-related scenarios is widespread due to its sanitary characteristics and ability to resist corrosion. It remains unaffected by acidic or alkaline foods and does not introduce any flavors or odors into the prepared dishes. Furthermore, stainless steel is effortlessly cleaned and sanitized, rendering it an ideal material for bars, countertops, utensils, and other food preparation equipment. Moreover, stainless steel exhibits durability and longevity, making it a cost-efficient option for commercial kitchens and food processing establishments.

Q: Can stainless steel bars be used in hydraulic applications?: Yes, stainless steel bars can be used in hydraulic applications. Stainless steel is known for its high strength, corrosion resistance, and durability, making it suitable for various industrial applications, including hydraulics. Stainless steel bars are often used in hydraulic systems where resistance to chemicals, moisture, and high temperatures is required. Additionally, stainless steel bars have good mechanical properties, such as high tensile strength and hardness, which make them capable of withstanding the high pressures and loads that hydraulic systems often experience. Overall, stainless steel bars are a reliable and efficient choice for hydraulic applications.

Q: How do stainless steel bars compare to other metal bars?: Stainless steel bars are highly regarded for their exceptional properties and characteristics, making them one of the most sought-after metal bars in various industries. In comparison to other metal bars, stainless steel bars offer several distinct advantages. Firstly, stainless steel bars are highly resistant to corrosion and rust, making them an ideal choice for applications that require durability and longevity. This corrosion resistance is attributed to the presence of chromium, which forms a protective oxide layer on the surface of the stainless steel, preventing it from being affected by external factors such as moisture, chemicals, or atmospheric conditions. In contrast, other metal bars, such as carbon steel or aluminum, are more prone to corrosion and require additional protective coatings or maintenance to prevent deterioration. Secondly, stainless steel bars possess excellent strength and toughness, allowing them to withstand heavy loads and high-pressure environments. This inherent strength makes stainless steel bars suitable for applications that require structural integrity or resistance to deformation. Compared to other metal bars, stainless steel has a higher strength-to-weight ratio, meaning it can provide the same strength with a lower weight, making it more cost-effective and efficient. Additionally, stainless steel bars exhibit superb heat resistance, maintaining their strength and structural integrity even at high temperatures. This property is crucial in industries such as aerospace, automotive, or manufacturing, where metal bars are subjected to extreme heat conditions. Other metals, such as aluminum or copper, may experience thermal expansion or deformation under high temperatures, making stainless steel bars a superior choice in such scenarios. Furthermore, stainless steel bars offer exceptional hygiene and cleanliness, making them widely used in industries like food processing, pharmaceuticals, and healthcare. The smooth and non-porous surface of stainless steel bars makes them easy to clean, resistant to bacterial growth, and capable of maintaining high sanitary standards. In contrast, other metals may have porous or rough surfaces that can trap bacteria or contaminants, compromising the hygiene and safety of the application. In conclusion, stainless steel bars surpass other metal bars in terms of corrosion resistance, strength, heat resistance, and hygiene. These qualities make stainless steel bars a versatile and reliable choice for a wide range of applications across various industries, ensuring long-lasting performance and cost-effectiveness.

Q: What are the different types of stainless steel bar finishes?: There exists a variety of stainless steel bar finishes that possess their own distinctive properties and aesthetic appeal. Some of the most prevalent finishes comprise: 1. Mill Finish: This fundamental stainless steel bar finish exhibits a smooth and non-reflective surface. It is achieved through hot rolling the steel and leaving it in its natural state without any additional treatment or polishing. Mill finish is commonly employed in industrial applications where appearance is not the primary concern. 2. Brushed Finish: Also referred to as satin finish, the brushed finish is attained by brushing the stainless steel surface with an abrasive material. This creates a textured appearance with fine parallel lines, giving the bar a matte and subdued appearance. Brushed finish is frequently utilized in architectural and decorative applications. 3. Mirror Finish: As the name implies, the mirror finish generates a highly reflective and shiny surface akin to a mirror. This finish is accomplished by polishing the stainless steel with progressively finer grits of abrasives until a smooth and flawless mirror-like appearance is achieved. Mirror finish is frequently employed in applications where aesthetics and reflectivity are crucial, such as decorative pieces or high-end appliances. 4. Bead Blasted Finish: Bead blasting entails propelling fine glass beads at high pressure onto the stainless steel surface, resulting in a uniform and matte appearance. This finish conceals any imperfections or scratches on the surface and imparts a slightly textured look. Bead blasted finish is commonly used in architectural and industrial applications where a low maintenance and non-reflective surface is desired. 5. Hairline Finish: The hairline finish is accomplished by using abrasive belts or pads to create a uniform and long-grain pattern on the stainless steel surface. This finish is characterized by its fine lines and is often employed in architectural and decorative applications. These represent merely a small selection of the various stainless steel bar finishes available. The choice of finish will depend on the specific application, desired appearance, and functional requirements of the stainless steel bar.

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