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Help CenterLow Carbon Steel Plate 20mm Hot Rolled A36 Carbon Steel Sheet With After-Sales Technical Support and Mill Test Report
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Hemaokang Steel (Shandong) Co., Ltd. is proud to offer this Low Carbon Steel Plate 20mm Hot Rolled A36 Carbon Steel Sheet, a versatile and reliable product engineered for demanding structural and industrial applications. As a manufacturer with a committed after-sales technical support team and full mill test report documentation, we ensure every plate meets your exact project specifications. This A36 steel plate delivers excellent weldability, formability, and consistent mechanical properties, providing you with a cost-effective solution without compromising performance.
Our hot rolled low carbon steel plate is produced through advanced rolling processes that refine grain structure and enhance overall toughness. With a thickness of 20mm, this plate offers superior load-bearing capacity while remaining workable for cutting, drilling, and welding. Whether you are building structural frameworks, fabricating heavy machinery, or constructing bridges and platforms, this A36 carbon steel sheet is a trusted choice across a wide range of sectors.
Key Features & Benefits
- High Strength & Durability: The A36 grade ensures a minimum yield strength of 250 MPa, making it suitable for structural components that bear heavy loads.
- Excellent Weldability: Low carbon content reduces the risk of weld cracking, allowing for clean, strong joints even in complex fabrication processes.
- Superior Formability: Hot rolled processing makes the plate easy to bend, punch, and shape without losing its integrity.
- Consistent Thickness Tolerance: precisely rolled to 20mm, with tolerances compliant with industry standards, ensuring uniform performance across the entire surface.
- Complete Traceability: Each plate is accompanied by a mill test report (MTR) that verifies chemical composition and mechanical properties, giving you full confidence in material quality.
- Surface Ready for Further Processing: The plate is supplied with a clean black surface suitable for shot blasting, painting, or galvanizing, depending on your project requirement.
- Customizable Sizes: We offer cutting services to produce plates with custom widths, lengths, and even shapes, reducing waste and saving your fabrication time.
This 20mm A36 carbon steel sheet is manufactured under strictly controlled hot rolling conditions, resulting in a dense, uniform microstructure that enhances its mechanical reliability. It is widely used in the construction of steel buildings, industrial floors, storage tanks, and heavy transport equipment. The plate's balanced chemistry—carbon approximately 0.25% to 0.29%—provides optimal strength while maintaining excellent machinability for secondary operations such as sawing, shearing, or laser cutting.
| Specification | Value / Detail |
|---|---|
| Grade | A36 (ASTM A36 / ASME SA-36) |
| Thickness | 20 mm |
| Rolling Type | Hot Rolled |
| Width Range | 1000mm – 3000mm (custom cutting available) |
| Length Range | 2000mm – 12000mm or as per your requirements |
| Tensile Strength | 400 – 550 MPa |
| Yield Strength | ≥ 250 MPa |
| Elongation | ≥ 20% (in 200mm gauge length) |
| Carbon Content | ≤ 0.29% |
| Certifications | ISO9001:2015 |
| Mill Test Report | Supplied with every batch |
| Delivery Condition | As rolled, optional normalized or quenched & tempered |
The low carbon composition of this A36 plate gives it a distinct advantage in structural applications where welding and forming are critical. Unlike higher carbon steels that require preheating or post-weld treatments, this grade can be welded using standard procedures, reducing production time and labor costs. Additionally, the hot rolled finish offers a slightly scaled surface that is ready for primary coating processes. For projects that require tighter surface quality, we can also supply pickled and oiled plates upon request.
Our technical support team is available throughout your project—from material selection to after-sales service. We provide guidance on cutting methods, welding parameters, and surface preparation to help you optimize the material's performance. We understand that consistency is vital for large-scale projects, so we maintain stable production quality across multiple batches, ensuring that every delivered plate meets the same strict standards.
Why choose Hemaokang Steel?
- Reliable Manufacturing: Our production facility in Shandong, China is equipped with modern rolling mills and stringent quality control procedures, ensuring each 20mm carbon steel plate performs consistently.
- Comprehensive Export Experience: With an annual export value of US$50–100 million, we have developed robust logistics and documentation procedures to ensure timely delivery to global markets.
- Responsive Customer Support: Our team of 51–100 employees includes experienced export specialists, quality inspectors, and after-sales engineers dedicated to answering your questions and resolving issues swiftly.
- Flexible Customization: We provide custom cutting, edge preparation (beveling), and surface treatments such as shot blasting and primer painting, all available upon request.
- Fast Global Delivery: Shipping from the port of Qingdao, one of China's largest and most efficient ports, we serve markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and Western Europe.
As a company established in 2025 but already achieving significant scale, Hemaokang Steel (Shandong) Co., Ltd. combines fresh operational vigor with the discipline of internationally recognized quality management. We are ISO9001 certified, and our products have been supplied to projects in diverse geographical environments, from tropical coastal installations to cold-climate infrastructure. When you order our Low Carbon Steel Plate 20mm Hot Rolled A36 Carbon Steel Sheet, you are not only purchasing steel—you are acquiring the backing of a specialized team that treats your deadlines as our own.
We invite you to explore our product range and request a sample or a mill test report before placing a bulk order. Our after-sales technical support is ready to assist with any post-purchase fabrication or installation challenges. Inquire today for a competitive quotation, a precise weight calculation, or an update on the latest production schedule. Hemaokang Steel is committed to delivering strength, reliability, and peace of mind in every plate we ship.
Frequently Asked Questions
1. Is this A36 steel plate suitable for outdoor structural use?
Yes, A36 is a standard structural carbon steel often used in outdoor applications such as bridges, frames, and platforms. However, for long-term exposure to high humidity or corrosive environments, we recommend adding a protective coating such as epoxy primer, galvanizing, or weather-resistant paint. Our after-sales team can advise on suitable surface protection options available upon request.
2. Do you provide cut-to-size services for this 20mm plate?
Yes, we offer custom cutting services including her cutting, plasma cutting, and laser cutting for thinner products. For 20mm plate, we can provide rectangular blanks, squares, circles, or custom shapes based on your drawings. There is no minimum order quantity for standard cuts, and we ensure tolerances within industry standards.
3. Can I get a mill test report (MTR) with my shipment?
Absolutely. Every order of A36 carbon steel plate is supplied with a mill test report that lists the heat number, chemical composition, and mechanical properties. The MTR is issued by our mill and can be sent in advance for approval or included with the shipping documents.
4. How is the 20mm thickness tolerance controlled?
Our hot rolling process follows recognized standards (such as ASTM A6/A6M) with thickness tolerances that typically allow ±0.5 to ±1.0mm for 20mm plate, depending on the ordered width. We use accurate gauges online and conducted final dimensional inspections on every plate before packaging.
5. What is the lead time for production and delivery?
For standard sizes and thicknesses, production usually takes 7–10 days after order confirmation. For custom sizes or special surface treatments, the lead time may be 10–15 days. Shipping from Qingdao to major international ports generally takes 15–35 days depending on destination. We provide regular updates to keep your supply chain informed.
6. Can I order a small trial quantity before bulk purchase?
Yes, we welcome sample orders or small trial orders to verify product quality and service. You can request one piece of the 20mm A36 plate (e.g., 1000x1000mm) for testing. The trial order cost can be credited against your first bulk purchase if the order volume is substantial.
7. What kind of after-sales technical support do you offer?
Our support team assists with issues related to welding, cutting, flatness, and material defect claims. We also provide technical data for these plates and can answer any questions about the chemical composition, mechanical properties, or fabrication methods. If a non-conformity is identified, we work with you to provide a return, replacement, or mutually agreed settlement.
8. Are you able to supply plates with normalized heat treatment?
Yes, normalized steel is available upon request for improved toughness and more uniform grain structure. Normalizing is recommended for heavier plates or highly restrained welds. If your project specifies normalized conditions, we coordinate with the mill to include this treatment and provide corresponding verification tests.
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