Hot Rolled Grade ASTM A36_S235JR_SS400 Steel Flat Bar Catalogue

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Hot Rolled Grade ASTM A36_S235JR_SS400 Steel Flat Bar Catalogue

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Min Order Qty:: 3 m.t.

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Hot Rolled Grade ASTM A36_S235JR_SS400 Steel Flat Bar Catalogue

Details of Hot Rolled Grade ASTM A36_S235JR_SS400 Steel Flat Bar Catalogue

Name	Hot Rolled Grade ASTM A36_S235JR_SS400 Steel Flat Bar Catalogue
Shape	Flat Bar
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

steel flat bar grade	A36, Q235, Q195, SS400, St37-2
steel flat bar standard	GB, ASTM, AISI, EN, JIS
steel flat bar thickness	1.8mm-17.75mm
steel flat bar width	10mm-870mm
steel flat bar length	6m, 9m, 12m or as customer requirement
steel flat bar technique	Slitting hot rolled steel coil

Specification of Hot Rolled Grade ASTM A36_S235JR_SS400 Steel Flat Bar Catalogue

Width	Thickness	Length	Theoretical Weight
(mm)	(mm)	(m)	(kg/m)
20	2	6/9/12	0.31
20	2.5	6/9/12	0.39
20	2.75	6/9/12	0.43
25	2.5	6/9/12	0.49
25	3.75	6/9/12	0.74
30	2.5	6/9/12	0.59
30	3.5	6/9/12	0.82
30	9.75	6/9/12	2.3
40	3.5	6/9/12	1.1
40	4.75	6/9/12	1.5
40	11.75	6/9/12	3.69
50	2.75	6/9/12	1.08
50	4.5	6/9/12	1.77
50	9.75	6/9/12	3.83
60	5.5	6/9/12	2.6
60	7.5	6/9/12	3.53
60	11.5	6/9/12	5.42
80	5.5	6/9/12	3.45
80	7.5	6/9/12	4.71
80	11.75	6/9/12	7.38
100	3.25	6/9/12	2.55
100	4.75	6/9/12	3.73
100	7.5	6/9/12	5.89
120	9.75	6/9/12	9.18
120	11.75	6/9/12	11.07
150	9.75	6/9/12	11.48
150	11.5	6/9/12	13.54
150	13.5	6/9/12	15.9
160	11.75	6/9/12	14.76
200	9.5	6/9/12	14.92
250	5.75	6/9/12	11.28
340	7.75	6/9/12	20.68

CNBM Introduction of Hot Rolled Grade ASTM A36_S235JR_SS400 Steel Flat Bar Catalogue Supplier

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.

Hot Rolled Grade ASTM A36_S235JR_SS400 Steel Flat Bar Catalogue

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Industry experience over 20 years.
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Packaging & Delivery Hot Rolled Grade ASTM A36_S235JR_SS400 Steel Flat Bar Catalogue

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

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Hot Rolled Grade ASTM A36_S235JR_SS400 Steel Flat Bar Catalogue

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 machining special steel?: Machining special steel can present several common challenges that need to be effectively addressed in order to achieve desired results. One of the primary challenges in machining special steel is its high hardness and toughness. Special steels are often alloyed with various elements to enhance their properties, making them harder and more resistant to wear and corrosion. This hardness can cause increased tool wear and reduced tool life, requiring the use of specialized cutting tools and techniques. Another challenge in machining special steel is its low thermal conductivity. Special steels are known to have poor heat dissipation properties, leading to the accumulation of heat during the machining process. This heat buildup can cause thermal deformation, leading to dimensional inaccuracies and poor surface finish. Proper cooling and lubrication techniques, as well as appropriate cutting speeds and feeds, are crucial to overcome this challenge and prevent thermal damage. Additionally, special steels often have complex microstructures due to their alloying elements, which can result in uneven material removal and surface finish. These microstructural variations can make the machining process more unpredictable and challenging. Careful selection of cutting parameters, tooling, and machining strategies is necessary to ensure consistent and accurate results. Furthermore, some special steels may exhibit work hardening tendencies during machining. This means that as the material is being cut, it becomes harder and more resistant to further cutting. This work hardening can lead to increased cutting forces, tool wear, and poor surface finish. Utilizing appropriate cutting speeds, feeds, and tool geometries can help mitigate this challenge and prevent work hardening. Finally, special steels often come with higher manufacturing costs due to the complexity of their composition and the need for specialized tooling and equipment. The selection of suitable cutting tools, fixtures, and machining processes may require additional investment and expertise. Therefore, understanding the specific characteristics and challenges of machining special steel is crucial to ensure efficient and cost-effective production.

Q:How does special steel perform in terms of thermal expansion?: Special steel typically has a lower coefficient of thermal expansion compared to other types of steel. This means that it expands and contracts less when subjected to temperature changes, resulting in better dimensional stability and reduced risk of warping or cracking.

Q:What are the different methods of improving the toughness of special steel?: To enhance the toughness of special steel, various techniques can be utilized. One effective method involves the addition of alloying elements such as nickel, chromium, or manganese to the steel composition. These elements contribute to increased strength and resistance to cracking or fracturing. Another approach is to apply heat treatment processes like quenching and tempering. Quenching rapidly cools the steel from a high temperature, resulting in a hardened structure. On the other hand, tempering involves reheating the quenched steel to a specific temperature and then slowly cooling it. In addition, grain refinement techniques can be employed to improve toughness. Controlling the size and distribution of grains within the steel enhances its resistance to fracture. Methods like grain size control through recrystallization and severe plastic deformation can be used to refine the grain structure. Furthermore, maintaining low impurity content in the steel is crucial for its toughness. Impurities like sulfur and phosphorus can cause brittleness, so refining and purification processes should be employed to reduce their presence. Moreover, surface treatment methods such as shot peening or surface hardening can be implemented. Shot peening involves bombarding the steel surface with small spherical particles to induce compressive stress, which helps in resisting crack propagation. Surface hardening techniques like carburizing or nitriding create a hardened layer on the surface, enhancing toughness. In conclusion, improving the toughness of special steel can be achieved through alloying, heat treatment, grain refinement, impurity control, and surface treatment. These techniques can be used individually or in combination to enhance the steel's properties and make it more resistant to cracking or fracturing.

Q:What are the applications of special steel in the medical field?: Special steel is widely used in the medical field due to its exceptional properties. It is commonly utilized in surgical instruments, implants, and prosthetics. The high strength and corrosion resistance of special steel ensure the durability and longevity of these medical devices. Additionally, its biocompatibility and ability to withstand sterilization processes make it ideal for use in critical applications such as orthopedic implants and cardiovascular stents. The use of special steel in the medical field contributes to improved patient outcomes and advancements in medical technology.

Q:How does special steel contribute to the transportation equipment industry?: Special steel plays a crucial role in the transportation equipment industry by providing high strength, durability, and resistance to wear and corrosion. It allows for the construction of lighter yet stronger components, leading to improved fuel efficiency, increased payload capacity, and enhanced safety in vehicles. Additionally, special steel enables the production of precision parts and components, ensuring the reliability and performance of transportation equipment.

Q:How is nitriding steel used in the production of tools and dies?: Nitriding steel is used in the production of tools and dies to enhance their hardness, wear resistance, and overall performance. The process of nitriding involves introducing nitrogen to the surface of the steel, forming a hard nitride layer that significantly improves the tool's durability and lifespan. This treatment allows the tools and dies to withstand high temperatures, resist corrosion, and maintain their sharpness, making them more efficient and cost-effective in various industrial applications.

Q:What are the main applications of special steel in the defense aircraft?: Special steel is used in defense aircraft for a variety of critical applications. Some of the main applications include structural components, engine components, and armor. Special steel provides high strength and durability, allowing it to withstand extreme conditions and protect the aircraft from impacts and ballistic threats. It also offers excellent heat resistance, corrosion resistance, and fatigue resistance, making it ideal for use in critical areas where safety and reliability are paramount.

Q:Can special steel be used in the jewelry industry?: Yes, special steel can be used in the jewelry industry. It is often used as an alternative to precious metals like gold or silver due to its durability and affordability. Special steel can be used to create unique and stylish jewelry pieces, such as rings, bracelets, and necklaces, that are resistant to tarnish and wear.

Q:What are the different corrosion-resistant grades of special steel?: There are several corrosion-resistant grades of special steel that are commonly used in various industries. These grades are specifically designed to resist corrosion and maintain their structural integrity in harsh environments. Some of the different corrosion-resistant grades of special steel are: 1. Stainless Steel: Stainless steel is one of the most popular corrosion-resistant grades and is widely used in various applications. It contains a minimum of 10.5% chromium, which forms a protective passive oxide layer on the surface, preventing corrosion. There are different types of stainless steel, such as austenitic, ferritic, and martensitic, each with varying levels of corrosion resistance. 2. Duplex Stainless Steel: Duplex stainless steel is a combination of austenitic and ferritic stainless steels, offering superior corrosion resistance compared to conventional stainless steel grades. It has a high chromium content, along with other alloying elements like molybdenum and nitrogen, which enhance its resistance to pitting, crevice corrosion, and stress corrosion cracking. 3. Super Duplex Stainless Steel: Super duplex stainless steel is an even higher corrosion-resistant grade than duplex stainless steel. It has a higher chromium and molybdenum content, providing excellent resistance to highly corrosive environments, such as seawater, chemicals, and acids. Super duplex stainless steel is commonly used in offshore oil and gas industries. 4. Nickel Alloys: Nickel alloys, such as Inconel and Hastelloy, are highly corrosion-resistant grades of special steel. These alloys have a high nickel content, along with other elements like chromium and molybdenum, which make them resistant to a wide range of corrosive environments, including high-temperature and acidic conditions. 5. Titanium Alloys: Titanium alloys are known for their exceptional corrosion resistance, especially in aggressive media, such as seawater and chemical processing environments. These alloys have a low density, high strength, and superior resistance to pitting, crevice corrosion, and stress corrosion cracking. 6. Aluminum Alloys: Certain aluminum alloys, such as 5052 and 6061, are also corrosion-resistant grades of special steel. These alloys have a protective oxide layer that forms on the surface, providing excellent resistance to atmospheric corrosion. Aluminum alloys are commonly used in marine and aerospace applications. These are just a few examples of the different corrosion-resistant grades of special steel. The selection of the appropriate grade depends on the specific corrosive environment, temperature, mechanical properties required, and other factors related to the intended application.

Q:Can special steel be used in the medical industry?: Yes, special steel can be used in the medical industry. It is commonly employed in the production of surgical instruments, medical implants, and equipment due to its high strength, corrosion resistance, and biocompatibility. Special steel alloys, such as stainless steel and titanium alloys, are extensively utilized in various medical applications to ensure patient safety and enhance the effectiveness of medical procedures.

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