Cold Drawn Steel Bars Round Square Rods System 1

Cold Drawn Steel Bars Round Square Rods

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

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Cold Drawn Steel Bars Round Square Rods

Product Information:

1, Standard: GB, ASTM, AISI, SAE, DIN, JIS, EN

2, Produce Process: smelt iron - EAF smelt billet - ESR smelt billet - hot rolled or forged to get the steel round bar and plate

3, Heat Treatment: annealing, normalizing, tempering, quenching

4, Surface Treatment: Black, Polished, Galvanized the picture of the products

5, Quality Assurance: We accept third party inspection for all orders.

You can ask testing organizations such as SGS, BV, etc. to test our products before shipping.

Product Overviews:

Product Name	Typical Grades	Diameter(mm)	Standard adopted
Carbon Steel	20 (1020/S20C/C22)	Ø16-Ø300	GB/SAE/JIS/DIN
	40 (1040/S40C/C40)
	45 (1045/S45C/C45)
Bearing Steel	GCr9 (51100/SUJ1)	Ø12-Ø250
	GCr15 (52100/SUJ2/100Gr6)
	GCr9SiMn (A485-Gr.1/SUJ3)
Cr-Mo Steel	20Cr (5120/SCr420H/20Cr4)	Ø12-Ø250
	40Cr (5140/SCr440/41Cr4)
	42CrMo(4140/SCM440/42CrMo4)
Gear Steel	20CrNiMo	Ø16-Ø600
	20CrMn(5115/SMnC420/20MnCr5)
	20CrNiMo(8620/SNCM220/20CrMiMo2)

Product Show:

Cold Drawn Steel Bars Round Square Rods

Our Advantages:

· Industry experience over 20 years.

· Shipment of goods -More than 70 countries worldwide.

· The most convenient transport and prompt delivery.

· Competitive price with best service.

· High technical production line with top quality products.

· High reputation based on best quality products.

With our experienced, enthusiastic and dynamic staffs, we assure to bring you the products with best quality, reasonable prices and good after-sales services under the motto: Friends First, Business After.

Communication, Experience, Expertise and Best efforts are our Promises to you.

Q: What are the different methods of surface texturing for special steel?: Some of the different methods of surface texturing for special steel include shot blasting, etching, electrochemical etching, laser texturing, and milling. These methods are used to create various patterns, textures, or finishes on the surface of the steel, which can enhance its appearance, improve its performance, or provide better adhesion for coatings.

Q: How is special steel used in the oil and gas industry?: Special steel is used extensively in the oil and gas industry due to its unique properties and high strength. It is specifically designed to withstand harsh environments, corrosion, and extreme temperatures. Special steel is used in various applications such as drilling equipment, pipelines, storage tanks, and valves, ensuring reliability and safety in the extraction, transportation, and processing of oil and gas.

Q: How is corrosion-resistant tool steel used in the production of molds and dies?: Corrosion-resistant tool steel is used in the production of molds and dies to ensure the longevity and durability of these tools. Since molds and dies are often exposed to harsh environments and corrosive elements, using corrosion-resistant tool steel helps to prevent rust and corrosion, which can lead to premature wear and damage. This type of tool steel also provides excellent strength, hardness, and wear resistance, allowing molds and dies to withstand high-pressure and high-temperature conditions without compromising their performance. Overall, the use of corrosion-resistant tool steel in the production of molds and dies ensures the production of high-quality and long-lasting tools that can withstand the demands of various manufacturing processes.

Q: How does special steel perform in high-pressure hydrogen environments?: Special steel performs well in high-pressure hydrogen environments due to its high strength, corrosion resistance, and ability to withstand hydrogen embrittlement. It offers reliable performance and minimizes the risk of hydrogen-induced failures, making it a suitable choice for applications such as hydrogen storage, transportation, and fuel cells.

Q: What are the main industries that use special steel?: The main industries that use special steel include automotive, aerospace, construction, energy, machinery, and tool manufacturing.

Q: What are the main characteristics of heat-resistant steel?: The main characteristics of heat-resistant steel include high resistance to oxidation, excellent strength at elevated temperatures, good thermal stability, and the ability to maintain its structural integrity even under extreme heat conditions.

Q: How is corrosion-resistant steel different from regular steel?: Corrosion-resistant steel, also known as stainless steel, differs from regular steel primarily due to the presence of chromium. Regular steel is prone to rust and corrosion when exposed to moisture and oxygen, while corrosion-resistant steel contains a minimum of 10.5% chromium, which forms a protective layer on its surface, preventing rust and corrosion. This additional element makes corrosion-resistant steel highly durable, long-lasting, and suitable for various applications where exposure to moisture or corrosive environments is a concern.

Q: What are the different methods of improving the wear resistance of special steel?: There are several methods of improving the wear resistance of special steel. One common method is through heat treatment, which involves heating and cooling the steel to modify its microstructure and improve hardness. Another method is through alloying, where different elements are added to the steel to enhance its wear resistance properties. Additionally, surface treatments like nitriding, carburizing, and coating can also be employed to improve wear resistance. Overall, a combination of these methods can significantly enhance the wear resistance of special steel.

Q: How is ultra-high-strength steel used in the construction industry?: Ultra-high-strength steel is commonly used in the construction industry to enhance the structural integrity and resilience of buildings and infrastructure. Its exceptional strength-to-weight ratio allows for the creation of lighter and more durable structures. This steel variant is often employed in applications such as high-rise buildings, bridges, and offshore structures, where its superior strength properties provide increased safety and load-bearing capacity.

Q: What are the environmental considerations associated with special steel production?: Special steel production can have several environmental considerations due to its resource-intensive nature and the emissions generated during the production process. One of the main environmental considerations associated with special steel production is the extraction of raw materials. Special steel requires specific alloys and additives, which often involve the extraction of rare or valuable metals. Mining for these materials can have significant environmental impacts, including habitat destruction, soil erosion, water pollution, and the release of toxic substances. Another consideration is the energy consumption during the production process. Special steel production involves several energy-intensive stages, such as melting, refining, and shaping. These processes typically rely on fossil fuels, which contribute to greenhouse gas emissions and air pollution. Additionally, the high temperatures required for steel production contribute to significant carbon dioxide emissions, a major contributor to climate change. Water usage is also a concern in special steel production. The production process requires a substantial amount of water for cooling, cleaning, and lubrication. This can lead to water scarcity and pollution if not managed properly. The effluents generated during the production process can contain heavy metals, acids, and other pollutants, which can harm aquatic ecosystems if not adequately treated. Waste generation is another environmental consideration. Special steel production generates various types of waste, including slag, dust, and sludge. These wastes can contain heavy metals, toxins, and other pollutants. Proper disposal or treatment of these wastes is essential to prevent pollution of soil, water, and air. Lastly, the transportation of raw materials and finished products in special steel production can contribute to carbon emissions and air pollution. The long-distance shipping of raw materials and finished steel products can add to the overall environmental footprint of the industry. In conclusion, special steel production has several environmental considerations, including the extraction of raw materials, energy consumption, water usage, waste generation, and transportation. To mitigate these impacts, companies should prioritize sustainable sourcing of raw materials, invest in energy-efficient technologies, promote water conservation and treatment practices, manage and minimize waste generation, and explore cleaner transportation options.

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