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Welcome to Hemaokang Steel (Shandong) Co., Ltd. — your trusted partner for premium steel products. We are pleased to present our A36 Carbon Steel Plate 1/4 Inch Thick 4x8 Foot Hot Rolled Pickled and Oiled, a versatile and high-performance material designed for a wide range of industrial applications. This plate combines the structural integrity of ASTM A36 carbon steel with the convenience of hot rolling, pickling, and oiling — ensuring a clean, rust-resistant surface that is ready for immediate fabrication. As a company with an annual export value of US$50 million to US$100 million and ISO9001 certification, we guarantee consistent quality and reliable supply.
Our hot rolled pickled and oiled (HRPO) process removes mill scale and applies a thin oil film, providing excellent surface cleanliness and temporary corrosion protection. This makes the plate ideal for welding, forming, and painting — saving you time and preparation costs. The 1/4-inch (6.35 mm) thickness and 4x8 foot (1220x2440 mm) size are industry standards that offer ease of handling and cutting versatility.
Key features and benefits of our A36 steel plate include:
- Superior Mechanical Properties: ASTM A36 grade ensures a minimum yield strength of 250 MPa and tensile strength of 400–550 MPa, suitable for structural applications.
- Excellent Weldability: Low carbon content allows easy welding without preheating in most cases.
- Formability: Can be bent, punched, and machined with standard equipment.
- Clean Surface: Pickling removes iron oxide scale, providing a smooth, bright finish that is ready for coating or further processing.
- Corrosion Protection: The oil coating prevents rust during storage and transportation, extending shelf life.
- Dimensional Accuracy: Strict thickness and flatness tolerances meet industry standards, reducing waste during fabrication.
- Versatile Applications: Widely used in building frames, bridges, storage tanks, automotive parts, shipbuilding, and general machinery.
The following table summarizes the typical specifications of our A36 carbon steel plate:
| Parameter | Value |
|---|---|
| Material Grade | ASTM A36 |
| Thickness | 1/4 inch (6.35 mm) |
| Width | 4 feet (1220 mm) |
| Length | 8 feet (2440 mm) |
| Surface Treatment | Hot Rolled, Pickled, Oiled |
| Yield Strength (min) | 250 MPa |
| Tensile Strength | 400–550 MPa |
| Weight per Sheet | Approx. 107 kg (based on 7.85 g/cm³) |
| Packaging | Standard export sea-worthy packaging (steel strapped, waterproof) |
Our A36 carbon steel plate undergoes rigorous quality control throughout production. We utilize advanced hot rolling mills and pickle lines to ensure consistent thickness and surface quality. The oil coating is applied uniformly to protect against moisture and oxidation during transit. Our team of 51–100 experienced professionals manages every step from raw material sourcing to final inspection, guaranteeing that each plate meets the ASTM A36 standard and your specific requirements.
For customers who need custom sizes, we offer cutting services (laser, plasma, or shearing) — simply contact us with your dimensions. We also provide additional processing options such as edge trimming, beveling, and drilling. All products are shipped from Qingdao Port, one of China's busiest ports, ensuring fast and reliable delivery to markets worldwide — including North America, South America, Europe, Southeast Asia, Africa, and Oceania.
Why choose Hemaokang Steel for your A36 plate requirement?
- ISO9001 Certified — Our quality management system ensures consistent product excellence.
- Massive Export Capacity — Annual export value of US$50–100 million, demonstrating our capability to fulfill large orders.
- Global Market Reach — We serve customers in over 10 regions, including domestic and international markets.
- Competitive Pricing — Direct mill supply eliminates middlemen, offering you cost-effective solutions.
- Tailored Services — Customized packaging, cut-to-size, and special surface treatments available upon request.
- Strong After-Sales Support — Our technical team is ready to assist with any questions about fabrication, welding, or application.
With a company established in 2025 but backed by decades of industry experience from our founding team, Hemaokang Steel is committed to being your long-term steel partner. We invite you to experience the difference of working with a supplier that prioritizes quality, reliability, and customer satisfaction. Contact us today for a quote or to request samples. Our team is ready to provide you with the best A36 carbon steel plate for your next project.
Frequently Asked Questions
Q1: What is the exact chemical composition of this A36 plate?
Our A36 carbon steel plate typically contains carbon (C) ≤0.25%, manganese (Mn) ≤0.80%, phosphorus (P) ≤0.04%, sulfur (S) ≤0.05%, and silicon (Si) ≤0.40% – all within ASTM A36 limits. A mill certificate is available upon request.
Q2: What are the standard thickness tolerances for 1/4 inch plate?
Per ASTM A36, the thickness tolerance for 1/4 inch (6.35 mm) plate is typically ±0.020 inch (0.51 mm). We ensure tight control to minimize deviation.
Q3: Can this plate be cut to custom sizes?
Yes, we offer cutting services. You can order plates cut to your specified dimensions (e.g., 2x2 ft, 3x6 ft, etc.). Please contact us with your requirements.
Q4: How long does the oil coating protect against rust?
The oil film provides temporary protection for several months under normal indoor storage conditions. For longer storage, we recommend keeping the plates in a dry environment or applying additional rust preventive.
Q5: What is the weight of a 4x8 foot sheet?
A single 1/4-inch thick, 4x8 foot A36 steel plate weighs approximately 107 kg (236 lbs). This can vary slightly based on actual density and thickness tolerance.
Q6: Is the plate suitable for welding with a standard MIG/TIG welder?
Yes, A36 steel is very weldable. Standard welding processes (MIG, TIG, stick) work well. No preheat is typically required for sections up to 1 inch thick, but proper welding procedures should be followed.
Q7: What is the minimum order quantity (MOQ)?
Our MOQ is generally 1 ton (about 9 sheets of 4x8 ft plate). However, for trial orders or sample requests, we may accommodate smaller quantities. Please inquire.
Q8: How is the plate packed for export?
Plates are bundled with steel straps, protected with moisture-proof paper or plastic sheets, and placed on strong wooden pallets or steel frames to ensure safe transit.
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