20MnV, 45B, 20Cr, 40Cr, and 38CrSi are all types of alloy steel used in the production of round bars. Each of these steels has its own unique composition and properties, making them suitable for various applications.

20MnV is a low alloy steel containing manganese and vanadium, providing good strength and toughness. It is often used in applications requiring high strength and impact resistance.

45B is a type of carbon steel with a higher carbon content, offering good hardenability and wear resistance. It is commonly used in the production of high-strength fasteners and gears.

20Cr is a low alloy steel containing chromium, providing good hardenability and strength. It is suitable for applications requiring moderate strength and good wear resistance.

40Cr is a widely used chromium-molybdenum alloy steel known for its high strength, hardenability, and abrasion resistance. It is commonly used in the production of machine parts and shafts.

38CrSi is a low alloy steel containing chromium and silicon, offering good strength and toughness. It is often used in the manufacturing of high-strength bolts and nuts.

When considering the use of these alloy steel round bars, it’s important to take into account the specific requirements of the application, such as strength, toughness, wear resistance, and machinability. Proper heat treatment and surface finishing are also crucial to achieve the desired mechanical properties and surface quality.

If you have further questions about the properties or applications of these alloy steel round bars, feel free to ask for more detailed information.

Product Detail

Main Application

1.Fluid / Gas delivery, Steel structure, Construction;
2.ROYAL GROUP ERW/Welded round carbon steel pipes, which with Highest quality and strong supply ability are widely used in Steel structure and Construction.

Note:
1.Free sampling, 100% after-sales quality assurance, Support any payment method;
2.All other specifications of round carbon steel pipes are available according to your requirement (OEM&ODM)! Factory price you will get from ROYAL GROUP.

Size Chart

Process of production

molten iron magnesium-based desulfurization-top-bottom re-blowing converter-alloying-LF refining-calcium feeding line-soft blowing-medium-broadband conventional grid slab continuous casting-cast slab cutting One heating furnace, one rough rolling, 5 passes, rolling, heat preservation, and finishing rolling, 7 passes, controlled rolling, laminar flow cooling, coiling, and packaging.

Product Inspection

Packing and Transportation

Usually bare package

Transportation: Express (Sample Delivery), Air, Rail, Land, Sea shipping (FCL or LCL or Bulk)

FAQ

Q: Are u a manufacturer?

A: Yes, we are a manufacturer. We have our own factory located in Daqiuzhuang Village, Tianjin City, China. Besides, we cooperate with many state-owned enterprises, such as BAOSTEEL, SHOUGANG GROUP, SHAGANG GROUP,etc.

Q: Can I have a trial order only several tons?

A: Of course. We can ship the cargo for u with LCL serivece.(Less container load)

Q: Do u have payment superiority?

A: For big order, 30-90 days L/C can be acceptable.

Q: If sample free?

A: Sample free, but the buyer pays for the freight.

Q: Are you gold supplier and do trade assurance?

A: We seven years cold supplier and accept trade assurance.We will usually satisfy our respected shoppers with our superior good quality, fantastic selling price and good company due to we're a lot more expert and far more hard-working and do it in cost-effective way for Professional China HRB400 HRB500 Hrb500e Deformed Steel Rebar Round Bar Construction Reinforcing Iron Metal Hot Rolled Round Square Stainless Carbon Steel Flat Corrugated Tmt Bar, Are you still on the lookout for a good quality product that is in accordance together with your very good organization image while expanding your item range? Consider our quality merchandise. Your choice will prove to be intelligent!
Professional China China Steel Bar and Rebar, If you need to have any of our merchandise, or have other items to be produced, make sure you send us your inquiries, samples or in depth drawings. Meanwhile, aiming to develop into an international enterprise group, we look forward to receiving offers for joint ventures and other cooperative projects.