Grade RINA DH32 Hot Rolled Mild Steel Plate

Grade RINA DH32 Hot Rolled Mild Steel Plate System 1

Grade RINA DH32 Hot Rolled Mild Steel Plate System 2

Grade RINA DH32 Hot Rolled Mild Steel Plate System 3

Grade RINA DH32 Hot Rolled Mild Steel Plate System 4

Grade RINA DH32 Hot Rolled Mild Steel Plate

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 3 m.t.

Supply Capability:: 100000 m.t./month

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Grade RINA DH32 Hot Rolled Mild Steel Plate

Detailed Information of Grade RINA DH32 Hot Rolled Mild Steel Plate

	C	Si		P	S	yield Strength MAp	Tensile strength MAp	Elongation %
A36	0.24	0.4		0.045	0.03	250	400-520	26
	C	Si	Mn	P	S	Cu
A283	≤0.27	0.15-0.4	≤0.9	≤0.035	≤0.04	≥0.2
Thickness:	6mm, 8mm, 12mm, 16mm, 20mm, 25mm, 30mm, 50mm, 80mm, 100mm, 150mm, 200mm
Width:	1500mm, 1800mm, 2000mm, 2200mm, 2500mm
Length:	6000mm, 8000m, can cut to width and length
Packing Details;	according to customer‘s require or export’s standard
Delivery time;	7 days for stock sizes, 20-25 days for new production sizes
Port:	Tianjin China

Related Products Overviews of Grade RINA DH32 Hot Rolled Mild Steel Plate

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)

Related Products Application of Grade RINA DH32 Hot Rolled Mild Steel Plate

Carbon Steel	l Mold bottom l Plastic mold l Construction machinery parts l Automobile parts l Security grills l Screens l Construction
Bearing Steel	l Aerospace l Navigation l Nuclear energy l Chemical industry l Electronic information l Petrochemical l Instrument and meter l Transportation
Cr-Mo Steel	l Mechanism & Fasteners gear l Stressed components for vehicles l Engines and machines l Parts of larger cross-section
Gear Steel	l All kinds of gears l Statically and dynamically stressed component for vehicles l Engines and machine l Larger cross-section parts l Crankshafts

Company Introduction of Grade RINA DH32 Hot Rolled Mild Steel Plate

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 RINA DH32 Hot Rolled Mild Steel Plate

After-sale service

l CNBM provides the services and support you need for every step of our cooperation. We’re the business partners you can trust; you can relax and get on with doing business.

l For any problem, please kindly contact us at any your convenient time, we’ll reply you in our first priority within 24 hours

Advantages

l Industry experience over 20 years.

l Shipment of goods -More than 70 countries worldwide.

l The most convenient transport and prompt delivery.

l Competitive price with best service.

l High technical production line with top quality products.

l High reputation based on best quality products.

Packaging & Delivery of Grade RINA DH32 Hot Rolled Mild Steel Plate

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

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Grade RINA DH32 Hot Rolled Mild Steel Plate

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 common challenges in welding titanium alloys?: Welding titanium alloys presents various difficulties due to the unique properties of titanium. Firstly, the melting point of titanium is exceptionally high, reaching approximately 1668°C (3034°F). This necessitates the use of specialized equipment and techniques to attain optimal welding conditions. Moreover, this high melting point increases the risk of overheating, which can lead to distortion or warping of the welded components. Another challenge lies in titanium's strong reactivity with oxygen, nitrogen, and hydrogen. These gases can easily contaminate the weld pool during the welding process, resulting in the formation of brittle and porous welds. Therefore, it is essential to take rigorous measures such as utilizing inert shielding gases like argon or helium, maintaining a high level of cleanliness, and employing proper welding techniques like gas tungsten arc welding (GTAW) to minimize contamination and achieve sound welds. Titanium also exhibits a significant affinity for carbon, which can cause the formation of brittle intermetallic compounds during welding. To prevent this, it is crucial to employ low-carbon filler metals and ensure appropriate heat input to avoid carbon diffusion into the weld zone. Furthermore, titanium alloys possess low thermal conductivity, causing heat generated during welding to concentrate in a small area. This concentration leads to localized overheating and potential damage. Hence, it is vital to control heat input and utilize suitable welding techniques to distribute heat evenly, thereby avoiding overheating and preserving the integrity of the welded joint. Lastly, titanium alloys display a high coefficient of thermal expansion, resulting in significant thermal expansion and contraction throughout the welding process. This can lead to distortion and residual stresses in the welded components. To mitigate these issues, preheating and post-weld heat treatment may be required to minimize distortion and relieve residual stresses. In conclusion, the challenges in welding titanium alloys encompass a high melting point, reactivity with gases, potential contamination, formation of intermetallic compounds, low thermal conductivity, and significant thermal expansion. By comprehending these challenges and implementing suitable welding techniques, it is possible to overcome these difficulties and achieve high-quality welds in titanium alloys.

Q: What are the different methods of preventing intergranular corrosion in special steel?: There are several methods available to prevent intergranular corrosion in special steel. 1. Heat Treatment: One effective method is to subject the steel to a heat treatment process called solution annealing. This involves heating the steel to a high temperature and then rapidly cooling it. This process helps to dissolve any precipitates or carbides that may have formed along the grain boundaries, thus reducing the risk of intergranular corrosion. 2. Alloying: Another approach is to add specific alloying elements to the steel composition. For example, the addition of elements like chromium and molybdenum can enhance the steel's resistance to intergranular corrosion. These alloying elements form a protective oxide layer on the surface, preventing corrosion from occurring along the grain boundaries. 3. Passivation: Passivation involves treating the steel surface with chemicals that create a protective layer. This layer acts as a barrier, preventing the corrosive environment from reaching the grain boundaries. Commonly used passivation techniques include acid pickling and electrochemical methods. 4. Sensitization Control: Special attention must be given to the sensitization process, which occurs when the steel is exposed to high temperatures for a prolonged period. This can lead to the precipitation of chromium carbides along the grain boundaries, making the steel susceptible to intergranular corrosion. By carefully controlling the heating and cooling rates during processing, sensitization can be minimized or prevented. 5. Corrosion Inhibitors: Another option is to use corrosion inhibitors, which are chemicals that can be applied to the steel surface to protect it from corrosion. These inhibitors form a protective film on the surface, preventing the corrosive agents from attacking the grain boundaries. It is important to note that the specific method used will depend on the type of special steel and the intended application. The selection of the most appropriate method should be based on a thorough understanding of the steel's composition, processing conditions, and the anticipated corrosive environment.

Q: How does special steel perform in additive manufacturing applications?: Special steel performs well in additive manufacturing applications due to its high strength, durability, and resistance to wear and corrosion. The unique properties of special steel, such as its ability to withstand high temperatures and extreme environments, make it an ideal material for 3D printing processes. Additionally, the flexibility and customization offered by additive manufacturing allows for the creation of complex geometries and intricate designs, further enhancing the performance of special steel in various applications.

Q: How does copper influence the characteristics of special steel?: Copper can greatly influence the characteristics of special steel by improving its strength, corrosion resistance, and electrical conductivity. The addition of copper to steel enhances its overall mechanical properties, making it more durable and resistant to wear and tear. Additionally, copper helps in preventing rust and oxidation, thus increasing the steel's resistance to corrosion. Moreover, copper enhances the electrical conductivity of steel, enabling it to be effectively used in electrical applications.

Q: What are the common failures or issues with special steel?: There are several common failures or issues that can occur with special steel. One of the most common issues is corrosion. Special steel, like any other type of steel, can be prone to corrosion when exposed to certain environmental conditions, such as moisture or aggressive chemicals. This can lead to a decrease in its structural integrity and overall performance. Another common failure is fatigue. Special steel is often used in applications that require high strength and durability. However, repetitive loading or stress can cause the material to develop cracks or fractures over time, leading to fatigue failure. This can be particularly problematic in industries such as aerospace or automotive, where components are subjected to constant cyclic loading. In addition, improper heat treatment can result in failure. Special steel often requires specific heat treatments to achieve desired properties such as hardness or toughness. If the heat treatment process is not carried out correctly, it can lead to inconsistent material properties, resulting in reduced performance or premature failure. Welding issues can also occur with special steel. Welding is commonly used to join different components or structures made of special steel. However, if proper welding techniques and procedures are not followed, it can result in the formation of defects such as weld cracks, porosity, or inadequate fusion. These defects can weaken the weld joint and compromise the overall integrity of the structure. Lastly, dimensional instability can be a problem with special steel. Certain types of special steel, such as those with high carbon content, can exhibit dimensional changes when subjected to temperature variations. This can lead to distortion or warping of the material, affecting its fit, function, or assembly with other components. To mitigate these failures or issues with special steel, it is crucial to follow proper material selection, design, manufacturing, and maintenance practices. Conducting thorough inspections, implementing appropriate corrosion protection measures, and ensuring proper heat treatment and welding procedures can help minimize the occurrence of these failures and enhance the performance and longevity of special steel components.

Q: How does the hardness of special steel affect its performance?: The hardness of special steel plays a crucial role in determining its performance. The hardness of steel refers to its ability to resist indentation, scratching, or deformation during use. This property is directly related to the steel's microstructure and the amount of carbon present in it. When special steel is hardened, it undergoes a process called heat treatment, typically involving rapid cooling or quenching after being heated to high temperatures. This process alters the steel's microstructure, resulting in a harder material. The increased hardness provides several benefits to the performance of special steel. Firstly, a higher hardness level enhances the wear resistance of special steel. This is particularly important in applications where the steel is subjected to abrasive or erosive forces, such as cutting tools or machinery components. A harder steel can withstand these forces without significant wear or damage, resulting in improved longevity and reliability. Secondly, the hardness of special steel affects its strength and toughness. A harder steel generally exhibits higher strength, meaning it can withstand greater forces without permanent deformation or failure. This property is advantageous in applications where the steel is subjected to heavy loads or impacts. Additionally, a certain level of toughness is necessary to prevent brittle fractures. While high hardness can make a steel more brittle, careful heat treatment can balance the hardness and toughness, ensuring the steel remains strong and resistant to fracture. Furthermore, the hardness of special steel also affects its machinability. Hardened steel can be more challenging to machine due to its increased resistance to cutting tools. However, it offers greater dimensional stability and precision during machining operations, leading to more accurate and consistent results. In summary, the hardness of special steel significantly impacts its performance. A higher hardness level provides improved wear resistance, strength, and toughness, making it suitable for demanding applications. However, the balance between hardness and toughness needs to be carefully considered to avoid brittleness. Therefore, understanding and controlling the hardness of special steel is essential to optimize its performance in various industries.

Q: What are the requirements for special steel used in industrial equipment manufacturing?: Special steel used in industrial equipment manufacturing typically has certain requirements to ensure its suitability for use in demanding applications. Some of the key requirements for special steel in this context include: 1. High strength: Industrial equipment often operates under heavy loads, so special steel must have excellent strength properties to withstand these forces. It should have a high yield strength, tensile strength, and hardness to prevent deformation or failure. 2. Corrosion resistance: Many industrial environments are prone to corrosion due to exposure to chemicals, moisture, or extreme temperature variations. Special steel used in such applications should have good corrosion resistance to prevent degradation and ensure long-term performance. 3. Wear resistance: Industrial equipment often experiences significant wear due to friction, abrasion, or impact. Therefore, special steel should have high wear resistance to maintain its integrity and prevent premature failure. 4. Toughness and impact resistance: Equipment used in industrial settings may face sudden shocks, impacts, or vibrations. Special steel should possess good toughness and impact resistance to absorb energy and resist fracture or cracking. 5. Heat resistance: In certain industrial processes, equipment may be exposed to high temperatures or rapid temperature changes. Special steel should have good heat resistance, with the ability to retain its strength, hardness, and other mechanical properties even at elevated temperatures. 6. Machinability: Special steel used in industrial equipment manufacturing should have good machinability to facilitate the fabrication process. It should allow for easy cutting, drilling, welding, and other machining operations without excessive tool wear or damage to the material. 7. Dimensional stability: Equipment components need to maintain their shape and dimensions under different operating conditions. Special steel should exhibit dimensional stability to prevent warping, distortion, or dimensional changes that could affect the performance or assembly of the equipment. Meeting these requirements ensures that special steel used in industrial equipment manufacturing can withstand the harsh conditions, provide reliable performance, and have a long service life, ultimately contributing to the overall efficiency and productivity of industrial processes.

Q: How does special steel perform in tooling applications?: Due to its unique properties and characteristics, special steel excels in tooling applications. Also known as tool steel, this type of steel is specifically designed and manufactured to endure the challenging conditions of tooling applications. One major advantage of special steel is its exceptional hardness. Tooling applications often involve cutting, shaping, and forming tough materials, and the hardness of special steel enables it to withstand the extreme pressures and forces involved in these processes effectively. Additionally, this hardness helps maintain the cutting edges' sharpness for extended periods, ensuring consistent and precise performance. Moreover, special steel demonstrates excellent resistance to wear. Tooling applications typically involve repetitive and abrasive actions, which can cause significant wear and tear on the tools. However, the wear resistance of special steel ensures that the tools maintain their performance and longevity, reducing the need for frequent replacements and downtime. Another crucial aspect of special steel is its remarkable toughness. Tooling applications often subject the tools to sudden impacts and shock loads. Special steel's toughness allows it to absorb these impacts without fracturing or breaking, making it highly reliable and durable in such applications. In addition, special steel offers good heat resistance and dimensional stability. Tooling applications frequently involve high temperatures, and special steel's ability to withstand heat prevents it from losing its hardness and other mechanical properties. This ensures consistent performance and dimensional stability, resulting in accurate and precise tooling. Lastly, special steel is also recognized for its corrosion resistance. Tooling applications may expose the tools to moisture, chemicals, or harsh environments, which can lead to corrosion and degradation. The corrosion resistance of special steel protects the tools from these corrosive elements, prolonging their lifespan and maintaining their performance. To conclude, special steel's hardness, wear resistance, toughness, heat resistance, dimensional stability, and corrosion resistance make it highly effective in tooling applications. These properties enable special steel tools to withstand the demanding conditions of tooling applications, ensuring reliable and long-lasting performance.

Q: What are the different high-pressure grades of special steel?: There are several different high-pressure grades of special steel, each with its own unique properties and applications. Some of the commonly used high-pressure grades of special steel include: 1. 4130 steel: This grade of steel is known for its excellent strength, toughness, and heat resistance. It is often used in the manufacturing of high-pressure tubing and components for the oil and gas industry. 2. 4340 steel: This grade of steel is known for its exceptional strength and toughness. It is commonly used in the production of high-pressure valves, gears, and other critical components in industries like aerospace, defense, and automotive. 3. 316 stainless steel: This grade of stainless steel is highly corrosion-resistant and has excellent high-temperature properties. It is frequently used in high-pressure applications such as pipelines, heat exchangers, and pressure vessels in chemical and petrochemical industries. 4. 17-4 PH stainless steel: This grade of stainless steel offers a combination of high strength, excellent corrosion resistance, and good toughness. It is often used in high-pressure pump components, turbine blades, and other critical parts in industries like power generation and aerospace. 5. F22 steel: This grade of steel is a low-alloy steel with high-temperature strength and excellent creep resistance. It is commonly used in high-pressure and high-temperature applications such as boilers, pressure vessels, and piping systems in power plants and refineries. These are just a few examples of the high-pressure grades of special steel available. The selection of the appropriate grade depends on the specific requirements of the application, including factors like pressure, temperature, corrosion resistance, and mechanical properties.

Q: What are the main factors affecting the fracture toughness of special steel?: The fracture toughness of special steel can be affected by several key factors, encompassing: 1. Alloy composition: The fracture toughness of the steel can be greatly influenced by its specific chemical composition, including the type and amount of alloying elements. Elements like chromium, nickel, and molybdenum have the potential to enhance toughness by promoting the formation of fine-grained microstructures or improving the steel's ability to resist crack propagation. 2. Heat treatment: Determining the fracture toughness of the steel is heavily reliant on the temperature and duration of the heat treatment process, as well as the subsequent cooling. Proper heat treatment can refine the microstructure and eliminate any potential defects, thereby enhancing the steel's resistance to fracture. 3. Microstructure: The fracture toughness of the steel is profoundly impacted by its microstructure, encompassing grain size and distribution, phase composition, and the presence of inclusions. Generally, finer-grained structures exhibit higher toughness due to their improved resistance to crack propagation. 4. Existence of defects: The presence of defects, such as cracks, voids, or inclusions, within the steel can act as stress concentrators, ultimately diminishing its fracture toughness. These defects can initiate cracks and facilitate their propagation, ultimately leading to reduced toughness. 5. Temperature: Fracture toughness is contingent upon temperature, and the behavior of special steel can significantly vary at different temperature ranges. Some steels exhibit improved toughness at lower temperatures due to microstructural transformations, while others may experience decreased toughness at elevated temperatures due to material softening. 6. Loading conditions: The fracture toughness of special steel can also be impacted by the loading conditions, including the rate of loading or the presence of dynamic loading. Higher loading rates or dynamic loading can result in reduced toughness, as the steel may not have sufficient time to deform and absorb energy before fracturing. 7. Mechanical properties: The mechanical properties of the steel, such as strength, hardness, and ductility, can influence its fracture toughness. Higher strength and hardness can sometimes lead to decreased toughness, as the material becomes more brittle. However, a balance between strength and toughness can be achieved by carefully selecting the alloy composition and heat treatment parameters. In summary, the fracture toughness of special steel is determined by a complex interplay of various factors, including alloy composition, heat treatment, microstructure, defects, temperature, loading conditions, and mechanical properties. By optimizing these factors, the fracture toughness of special steel can be enhanced for specific applications.

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