Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar

Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar System 1

Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar System 2

Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar System 3

Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar System 4

Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 3 m.t.

Supply Capability:: 100000 m.t./month

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Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar

Details Information of Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar

Name	SAE1045 Carbon Steel Round Bar
Shape	Round Bar/Square Bar/Flat Bar/Plate/Wire
Standard	GB/ASTM/SAE/AISI/DIN/JIS/EN/BS
Surface Treatment:	Black/Peeling/Polished/Machined
Delivery Condition:	Hot Rolled or Forged/Peeled or Black Surface
Test	SGS/UT 100% Elements Testing
Certificate:	ISO/Mill Certificate
Service:	24 hours online service /
Service:	more than 20 years trading and manufacture
Quality Assurance:	the third party inspection, such as SGS, BV, TUV…etc. is acceptable
Packaging Details:	Seaworthy Packaging or as per customer's packing instruction

Carbon structure round bar	Q195 Q235A Q235B 10# 20#-55# S45CB
Low alloy high strength round bar	Q345A/Q345C/Q345D Q345B Q345E
Alloy structure round bar	SAE51B20 20Cr 40Cr 40CrV 20CrMo/30CrMo/35CrMo/42CrMo 20CrMoA/30CrMoA/35CrMoA/42CrMoA/42Cr ML20CrMo/ML30CrMo/ML35CrMo/ML42CrMo B7/SCM435-440 20MnTiB 20CrMnMo 20CrMoH 42CrMoH 40MnB/40MnBH 30Mn2-40Mn2 27SiMn 50CrVA 30CrMnTi
Pinion steel	20CrMnTi 20CrMnTiH 20CrMnTiHCS/20CrMnTiHLD Q20CrMnTi-1/Q20CrMnTi-2
Sucker rod	20-35CrMoA
Free-cutting steel	GT1215S
Spring steel	60Si2MnA 65Mn
Ball bearing steel	GCr15

Chemical Composition of Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar

C	Si	Mn	P	S	Cr	Ni	Cu

0.17-0.24	0.17-0.37	0.35-0.65	≤0.035	≤0.035	≤0.25	≤0.25	≤0.25

Tensile strength (σb/MPa)	Yield strength (σb/MPa)	Elongation (δ5/%)
≥410(42)	≥245(25)	≥25

Company Introduction of Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar

CNBM International Corporation is the most import and export platform of CNBM group(China National Building Material Group Corporation) ,which is a state-owned enterprise, ranked in 270th of Fortune Global 500 in 2015.

With its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high quality series of refractories as well as technical consultancies and logistics solution.

Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar

Certificates of Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar

Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar

Packaging & Delivery of Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar

Packaging Detail	Sea worthy packing /as per customer's packing instruction
Delivery Detail	15 ~ 40 days after receiving the deposit

Products show of Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar

Grade Q235B Round Bars-Carbon Round Bar -Alloy Round Bar

FAQ

Are you a trading company or manufacturer?	Manufacturer
What’s the MOQ?	3 metric ton
What’s your delivery time?	15-35 days after downpayment received
Do you Accept OEM service?	Yes
what’s your delivery terms?	FOB/CFR/CIF
What's the Payment Terms?	30% as deposit,70% before shipment by T/T
	Western Union acceptable for small amount.
	L/C acceptable for large amount.
	Scrow ,Paybal,Alipay are also ok
Why choose us?	Chose happens because of quality, then price, We can give you both. Additionally, we can also offer professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposals.
What's your available port of Shipment?	Main Port, China
What’s your featured services?	Our service formula: good quality+ good price+ good service=customer's trust
Where are your Market?	Covering more than 160 countries in the world

Q: What are the main applications of special steel in the pharmaceutical industry?: Special steel is widely used in the pharmaceutical industry for various applications. One of the main applications is in the manufacturing of high-quality equipment such as tanks, vessels, and pipes that are required for the storage and transportation of pharmaceutical products. Special steel is preferred due to its corrosion resistance, durability, and ability to maintain product purity. Additionally, special steel is utilized in the production of precision tools and instruments used in pharmaceutical research, development, and quality control processes. Moreover, special steel is essential in the construction of cleanrooms and controlled environments, ensuring the hygienic and sterile conditions required in pharmaceutical manufacturing.

Q: How is special steel machined?: Special steel is machined using various techniques such as turning, milling, drilling, grinding, and cutting. These processes involve using specialized tools and equipment to shape and remove material from the steel, ensuring precise dimensions and smooth finishes. Additionally, advanced technologies like computer numerical control (CNC) machines are often used to automate the machining process, resulting in higher efficiency and accuracy.

Q: How does special steel contribute to reducing product lead times?: Special steel contributes to reducing product lead times by offering several advantages. Firstly, special steel is known for its high strength and durability, allowing manufacturers to produce parts that can withstand harsh conditions and heavy usage. This ensures that the products made with special steel have a longer lifespan, reducing the need for frequent repairs or replacements. Secondly, special steel can be fabricated into complex shapes and sizes, enabling manufacturers to produce intricate components with high precision. This eliminates the need for additional machining processes, saving time and reducing lead times. Lastly, special steel often has improved mechanical properties, such as higher hardness or heat resistance, which can enhance the performance of the final product. This allows manufacturers to meet specific requirements and deliver high-quality products more efficiently, ultimately reducing lead times.

Q: How does special steel contribute to the manufacturing of bearings?: Special steel plays a crucial role in the manufacturing of bearings due to its unique properties and characteristics. Bearings are mechanical components that facilitate smooth rotation or movement between two surfaces. Special steel, also known as bearing steel, is specifically designed to meet the demanding requirements of bearing applications. Firstly, special steel offers exceptional hardness, which is crucial for bearings to withstand heavy loads and high-speed rotations. The hardness of the steel allows the bearing to resist wear and deformation, ensuring a longer lifespan and reliable performance. Secondly, special steel possesses excellent corrosion resistance. Bearings often operate in harsh environments where they are exposed to moisture, chemicals, and other corrosive substances. The special steel used in bearing manufacturing effectively prevents rust and deterioration, ensuring the bearings can withstand these challenging conditions. Furthermore, special steel has superior heat resistance and thermal stability. Bearings can generate significant heat during operation due to friction and pressure. The special steel used in their production can withstand high temperatures without losing its structural integrity, preventing premature failure and ensuring consistent performance. Additionally, special steel offers exceptional strength and toughness. These properties are vital for bearings to withstand the intense forces and impacts they experience during operation. The high strength and toughness of the steel prevent fractures, breakages, and other forms of damage, contributing to the overall durability and reliability of the bearings. Lastly, special steel has excellent dimensional stability and machinability. This allows for precise manufacturing and shaping of the bearing components, ensuring accurate dimensions and smooth surfaces. The dimensional stability of the steel ensures that the bearings can maintain their proper fit and alignment within the machinery, minimizing any potential issues or malfunctions. In conclusion, special steel is essential in the manufacturing of bearings due to its hardness, corrosion resistance, heat resistance, strength, toughness, dimensional stability, and machinability. These properties enable bearings to withstand heavy loads, high speeds, harsh environments, and intense forces, ensuring reliable and efficient operation in a wide range of applications.

Q: What are the different methods of controlling the grain size in special steel?: There are several methods to control the grain size in special steel, aiming to achieve the desired mechanical properties and performance. Some of these methods include: 1. Alloying: By carefully selecting and controlling the composition of alloying elements in the steel, the grain size can be controlled. For example, elements such as niobium, vanadium, and titanium can effectively refine the grain size. 2. Heat treatment: The heat treatment process plays a crucial role in controlling the grain size. Techniques like annealing, normalizing, and quenching can be employed to manipulate the grain size. For instance, slow cooling during annealing promotes the growth of larger grains, while rapid cooling during quenching can lead to smaller grain sizes. 3. Deformation processing: Applying mechanical deformation, such as rolling, forging, or extrusion, can help refine the grain structure. These processes induce strain and promote the formation of smaller and more uniform grains. 4. Grain growth inhibitors: Adding certain elements to the steel, such as aluminum or zirconium, can act as grain growth inhibitors. These elements form fine particles that impede grain growth during heat treatment, resulting in a smaller grain size. 5. Transformation temperature control: By controlling the transformation temperature during heat treatment, the grain size can be manipulated. For example, lowering the austenitizing temperature can produce a finer grain structure in the final product. 6. Rapid solidification: Utilizing techniques like spray forming or rapid quenching can result in an ultrafine-grained microstructure. The rapid cooling prevents grain growth, leading to a fine and homogeneous grain structure. 7. Severe plastic deformation (SPD) techniques: SPD techniques, such as equal channel angular pressing (ECAP) or high-pressure torsion (HPT), can impose significant strain on the material, leading to a refined grain structure. These techniques are typically used for producing ultrafine-grained or nanostructured steels. It is important to note that the choice of the method for controlling grain size in special steel depends on the desired properties, the alloy composition, and the intended application of the final product.

Q: How is special steel used in the mining manufacturing process?: Special steel is used in the mining manufacturing process for various applications such as drill bits, crushing equipment, conveyor systems, and structural components. Its exceptional strength, durability, and resistance to wear and corrosion make it ideal for withstanding the harsh conditions of mining operations and ensuring the efficiency and reliability of mining machinery and infrastructure.

Q: How does special steel contribute to the aerospace racing aftermarket industry?: Special steel plays a crucial role in the aerospace racing aftermarket industry by offering superior strength, durability, and corrosion resistance properties. It is used in the manufacturing of various aircraft components, such as engine parts, landing gear, and structural elements, ensuring high performance and safety standards. The use of special steel in this industry allows for lighter and more efficient aircraft designs, enhancing speed and fuel efficiency. Additionally, special steel's resistance to extreme temperatures and stress makes it ideal for aerospace applications, contributing to the overall reliability and longevity of aftermarket products.

Q: How does special steel contribute to the automotive parts industry?: Special steel plays a crucial role in the automotive parts industry as it offers enhanced strength, durability, and resistance to corrosion. This type of steel is specifically designed to meet the demanding requirements of various automotive components, such as engine parts, chassis, and suspension systems. By utilizing special steel, automakers can ensure that their vehicles possess the necessary structural integrity and reliability, ultimately enhancing safety and performance. Additionally, the use of special steel allows for the production of lighter and more fuel-efficient vehicles, contributing to the industry's efforts in reducing carbon emissions and promoting sustainability.

Q: What are the casting methods for special steel?: There are several casting methods used for special steel, including investment casting, sand casting, and centrifugal casting. Investment casting involves creating a wax pattern of the desired shape, which is then coated in ceramic and melted away, leaving a cavity that is filled with molten steel. Sand casting involves making a mold from a mixture of sand and a binder, and pouring molten steel into the mold cavity. Centrifugal casting utilizes centrifugal force to distribute molten steel into a mold, resulting in a more uniform casting with fewer defects.

Q: Can special steel be used in the wastewater treatment industry?: Yes, special steel can be used in the wastewater treatment industry. Special steel, such as stainless steel or corrosion-resistant alloys, is often utilized in the construction of equipment and infrastructure used in wastewater treatment plants. These materials offer high resistance to corrosion, chemicals, and harsh operating conditions, ensuring durability and longevity in wastewater treatment processes. Additionally, special steel's hygienic properties make it suitable for applications where cleanliness and sterilization are crucial.

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