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Help CenterASTM A283 Grade C Carbon Steel Plate Technical Support and Inspection Certificate Included
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As a leading supplier from Hemaokang Steel (Shandong) Co., Ltd., we are proud to offer ASTM A283 Grade C Carbon Steel Plate with comprehensive technical support and a full inspection certificate. Our company, established in 2025, has rapidly grown into a trusted export partner with an annual export value exceeding US$50 million. We serve clients across North America, South America, Europe, Africa, Oceania, and Asia, ensuring that every plate meets the highest quality standards. With our ISO9001 certification and a dedicated team of 51–100 employees, we guarantee that each shipment from Qingdao Port is reliable, traceable, and backed by professional after-sales support.
Our ASTM A283 Grade C plates are manufactured to strict specifications, offering excellent weldability, formability, and moderate strength. They are widely used in structural applications, pressure vessels, and general fabrication. Below we detail the key features, technical specifications, and benefits that make our product a smart choice for your projects.
Key Features & Benefits
- Meets ASTM A283 Grade C Standard: Ensures consistent mechanical properties and chemical composition, suitable for structural and pressure-containing components.
- Excellent Weldability: Low carbon content allows easy welding without preheating for most thicknesses, reducing fabrication time and cost.
- Good Formability: Can be bent, flanged, or formed into complex shapes, ideal for custom fabrication.
- Inspection Certificate Included: Every plate comes with a Mill Test Certificate (MTC) and optional third-party inspection, providing full traceability.
- Customizable Dimensions: Thickness from 6mm to 200mm, width from 1500mm to 4000mm, length from 6000mm to 12000mm, or as per your cutting requirements.
- Surface Treatment Options: Available in black, shot blasted, or painted finish to meet your specific application needs.
- Technical Support: Our experienced engineers provide free consultation on material selection, processing, and application recommendations.
Technical Specifications
The following table summarizes the typical mechanical properties and chemical composition of ASTM A283 Grade C carbon steel plate:
| Property | Value |
|---|---|
| Tensile Strength (ksi) | 55 – 75 (380 – 515 MPa) |
| Yield Strength (ksi) | ≥ 30 (≥ 205 MPa) |
| Elongation in 8 in. (%) | ≥ 25 |
| Carbon (C) max | 0.24% |
| Manganese (Mn) max | 1.00% |
| Phosphorus (P) max | 0.035% |
| Sulfur (S) max | 0.035% |
| Silicon (Si) max | 0.40% |
Quality Assurance & Trust
We take quality seriously. Our ASTM A283 Grade C plates are sourced from reliable mills and undergo rigorous testing, including chemical analysis, mechanical testing, and dimensional inspection. Each plate is marked with heat number, size, and grade for traceability. With our ISO9001:2015 certified quality management system, you can be confident in consistent product performance. Our team of 51–100 skilled professionals ensures that every order is processed with care, from procurement to shipping.
As a company with an annual export value between US$50 million and US$100 million, we have established long-term partnerships with clients in over 15 markets worldwide. Our main markets include North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and more. We are based in Liaocheng, Shandong, China, and ship from the port of Qingdao, ensuring efficient logistics and competitive freight rates.
Choosing Hemaokang Steel means you get not only a high-quality product but also comprehensive technical support. Our engineers are available to answer your questions about material properties, welding procedures, and fabrication techniques. We can also arrange third-party inspection (e.g., SGS, BV) at your request. With flexible payment terms and fast delivery, we aim to be your trusted partner for carbon steel plate solutions.
Frequently Asked Questions
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Q: What is the difference between ASTM A283 Grade C and Grade D?
A: Grade C has lower tensile strength (55–75 ksi) compared to Grade D (60–80 ksi). Grade C is more weldable and formable, while Grade D offers slightly higher strength. Both are suitable for structural applications. -
Q: Do you provide cutting services for the plates?
A: Yes, we offer custom cutting (laser, plasma, gas cutting) to your required dimensions. Please specify your cutting requirements when placing an order. -
Q: Can I get a sample before placing a bulk order?
A: Yes, we can provide a small sample plate (e.g., 300x300mm) at a nominal cost, which is refundable upon bulk order. Samples are available with the same inspection certificate. -
Q: What certifications do you include with the shipment?
A: Every shipment includes a Mill Test Certificate (MTC) that provides chemical composition and mechanical properties. We can also provide a third-party inspection certificate (e.g., SGS, BV) at additional cost. -
Q: What is the typical lead time for an order?
A: For standard sizes and thicknesses, lead time is 15–20 working days after confirmation of order. For custom sizes or large quantities, please consult our sales team. -
Q: Are these plates suitable for pressure vessel applications?
A: ASTM A283 Grade C is commonly used in pressure vessels, but please verify specific design codes. Our technical team can help you determine suitability based on your operating conditions. -
Q: Do you have stock available in Qingdao port?
A: Yes, we maintain a stock of common sizes at our warehouse near Qingdao port for quick delivery. Contact us for current stock list. -
Q: How do you package the plates for export?
A: Plates are packed in bundles with steel straps, wrapped in waterproof paper or plastic, and secured on wooden pallets or steel skids for safe loading and transportation.
Contact us today to request a quote or discuss your specific requirements. Our team is ready to provide you with the best ASTM A283 Grade C carbon steel plate solutions backed by professional technical support and full inspection documentation.
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