ASTM A572 Grade 50 Q355b High Strength Structure Hr Steel Hot Rolled Chequered Steel Plate

• Standard: ASTM, JIS, GB, DIN
• Certification: RoHS
• Surface Treatment: Polished
• Technique: Hot Rolled
• Application: Container Plate
• Edge: Mill
• Stock: Stock
• Thickness: 0.9-80mm
• Width: 500mm--3000mm
• Thickness Torlerance: +/-0.05mm
• Width Tolerance: -0/+5mm
• Grade: Q235B Q355b
• Coil Weight: 12-27 Tons/Coil as Required
• Coil ID: 508mm or 610mm
• Processing Service: Cutting, Slitting
• Business Terms: Fob, CIF, CFR
• Port of Loading: Tianjin, China
• MOQ: 20gp with Mixed Specification
• Delivery Time: 8-14 Days
• Transport Package: Sea Worthy Packing
• Specification: 0.9-80mm
• Trademark: HBIS, Shougang, Angang, Baogang, Anfeng, Yangang
• Origin: Hebei, China
• HS Code: 7210490000
• Production Capacity: 500, 000 Tons Per Year

Product Description

 

Product Description

Production Process

Hot-rolled plate is produced by heating steel billets to a high temperature, usually above 1000°C, and then rolling them through a series of rolling mills. The high temperature makes the steel more malleable, allowing it to be easily shaped into the desired thickness and width. After rolling, the plate is cooled down rapidly to room temperature, either by natural air cooling or by using water cooling systems.

Q355B Manganese Hot Rolled Carbon Steel Coil (ASTM A572 Grade 50)

Manganese is the key alloying element, usually present in a certain proportion. The addition of manganese can significantly improve the strength and toughness of the steel plate. It enhances the ability of the plate to withstand large loads and impacts, making it suitable for applications in harsh working conditions. Manganese plates often exhibit good wear - resistance properties. This is because manganese can refine the grain structure of the steel, making the surface more resistant to abrasion and prolonging the service life of the plate in applications involving friction and wear.

 Properties

Good Mechanical Properties: Hot-rolled plates have excellent strength, toughness, and ductility. These properties make them suitable for applications that require high load - bearing capacity and resistance to deformation.
 

Uniform Structure: The hot - rolling process helps to refine the grain structure of the steel, resulting in a more uniform and dense material. This uniformity contributes to consistent mechanical properties throughout the plate.
 

Good Surface Quality: Although the surface of hot - rolled plates may not be as smooth as that of cold - rolled plates, modern production techniques have significantly improved the surface finish. They can have a relatively clean and smooth surface, suitable for many applications without the need for additional surface treatment.

 

 

 

Applications

Construction Industry: It is widely used in the construction of buildings, bridges, and other infrastructure projects. Hot - rolled plates are used for structural components such as beams, columns, and floor decks, providing the necessary strength and stability.

Mechanical Engineering: In the manufacturing of machinery and equipment, hot - rolled plates are used for parts such as machine beds, frames, and gears. Their high strength and good machinability make them ideal for these applications.

Automotive Industry: Hot - rolled plates are used in the production of automobile bodies, chassis, and various automotive components. They offer a good balance of strength and formability, allowing for the production of complex - shaped parts.

Pipeline Industry: Hot - rolled plates are often used to manufacture pipes for transporting oil, gas, and water. The plates are rolled and welded to form pipes with different diameters and wall thicknesses, meeting the requirements of different pipeline applications.

Rich Stocks and Full Specification

-- We take pride in maintaining an abundant inventory, 20,000 tons regular coils in stocks.  Our well-stocked coils are ready to support your projects with prompt delivery.

 

 

Item	Value
Place of Origin	Hebei, China
Brand Name	HBIS Tang / Yan, Shougang, Baosteel, Angang, Anfeng etc.
Application	Construction Industry, Mechanical Engineering, Automotive Industry, Pipeline Industryetc.
Thickness	0.9mm to 80mm
Width	800--3000mm
Standard	ASTM, EN, JIS, GB
Grade	Q195, Q235, Q235B, Q355, Q355B
Technique	HOT Rolled
Processing Service	Cutting, Slitting, Laser Cutting, Flame Cutting
Surface Treatment	Dry, Flat
Coil Weight	12-27 Tons/coil as customers' requirement
Coil ID	508 mm or 610 mm
Packing	Bare
MOQ	20ft container with mixed specification, or  Bulk Cargo
Delivery Time	Reday stocks within 7 days; customized coils need 30-45 days.

 

Our Service: Cutting, Slitting

Cutting 

Standard size:
Offering a diverse range of standard sizes: 1000*2000mm, 1250*2500mm, and  1219*2438mm,
1500*3000mm and 1500*2500mm

Minimized Width: Starting at a compact 450mm,
Maximum Width: Extending up to a substantial 12000mm

 

 

Slitting

Our high precision slitting service accommodates thicknesses and width ranging as below:

Thickness: 0.9--20mm,
Width: 100--1000mm
 

Laser Cutting

Laser cutting is a highly precise and efficient material processing technology that uses a high - energy laser beam to cut various materials. The advantage including: high precision, narrow kerf, good surface quality, high cutting speed and versatility.

Our plant equiped with high power (10000-20000W) laser cutting machine, which can cutting thickness from 20-50mm

Flame Cutting
 

Utilizes the high - temperature flame generated by the combustion of a combustible gas (such as acetylene, propane, etc.) mixed with oxygen to heat the metal material above its ignition point or melting point. Then, high - pressure oxygen flow is used to blow away the molten slag, thereby achieving the cutting of the metal. During the cutting process, the metal is oxidized and melted to form a cut.

Thickness: 50-80mm

Packing & Delivery

 

Hot Rolled Steel always adopt bare packing to save cost.
 

 

Company Profile

 

Tianjin Zinc Galv International Trade Co., Ltd. is located in Tianjin, China. Established in 2006 as a subsidiary of Tangshan Haoyun Group, Zinc Galv's core business is exporting the advantaged steel products of Haoyun Group. We are a large - scale stockist and Grade A distributor for over 15 major steel mills in northern China.  We keep 20,000 tons steel coil stocks in average with full specifications, which can meet fast delivery.
 
Our main product range encompasses Hot Rolled (HR), Cold Rolled (CR), Galvanized Iron (GI), Pre - painted Galvanized Iron (PPGI), Galvalume (GL), and Zinc - Aluminum - Magnesium coated steel coils and sheets. We also supply  further processing metal products, such as laser cutting spare parts, perforated metal sheets, Grip strut and so on. 

Over the years, we have participated in numerous overseas exhibitions, such as the BIG 5 in Dubai, PHILI CONSTRUCT, EXCON PERU, SAUDI BUILD, and ARCHITECT TAILAND. Through years of development, we have forged deep - rooted business relationships with customers from South America, the Middle East, Southeast Asia, Africa, and Eastern Europe.
 
In 2024, the annual turnover of Haoyun Group exceeded USD 500 million, and total sales volume surpassed 700,000 tons.
 
We welcome you to contact us and look forward to collaborating with you in the near future.

 

 

 

FAQ

1.What can you buy from us?
Galvanized Steel Coils/Sheets
Perforated GI Mesh (Decoration Panels, Safty Grating Metal Sheets, Trench Cover and so on)
Hot Rolled Steel Coils/Plates
Checkered HR Coils/ Plates
Zn-Al-Mg Coated steel Coils/Sheets.

Galvalume Steel Coils/Sheets
Cold Rolled Steel Coils/Sheets
Pre-painted Hot Dipped Galvanized Steel Coils/Sheets Pre-painted
Hot Dipped Galvalume Steel Coils/Sheets
Laser Cutting Spare Parts
Grip Strut

2.What's the MOQ?
Small orders acceptable, 1 container with different types of steel species is acceptable.
One container can load steels 25-27 tons.
 

3.Can I get a sample before order?
Free samples supplied, transportation fees should be borne by customers, but it can be deducted in the first order.

4.How is the delivery time?
For ready stocks, we can arrange shipment within 1-2 weeks according to the sailing schedule.
For customized steel, we need 20-40 days according to different order quantity and specifications. 

Welcome to contact us!

Molly Zhang

Sales Director