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Help CenterHigh Strength Carbon Steel Plate Q460C, 8mm-120mm, Yield Strength 460MPa, for Heavy Machinery
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Welcome to Hemaokang Steel (Shandong) Co., Ltd. – a trusted supplier of high-performance steel solutions. Our High Strength Carbon Steel Plate Q460C is engineered to meet the rigorous demands of heavy machinery and structural applications. With a yield strength of 460 MPa and thickness ranging from 8mm to 120mm, this plate offers an exceptional balance of strength, toughness, and weldability. Leveraging our ISO 9001 certified production processes and global supply network, we ensure consistent quality and reliable delivery for customers worldwide.
This product is specifically designed for load-bearing components in cranes, mining equipment, excavators, bridges, and heavy-duty frames. Its high strength-to-weight ratio allows for lighter structures without compromising performance, reducing material costs and improving fuel efficiency for mobile machinery. Below we detail the key features, technical specifications, and advantages that make Q460C the preferred choice for engineers and procurement professionals.
Key Features & Technical Specifications
- High Yield Strength: Minimum 460 MPa ensures reliable performance under high stress, suitable for critical structural members.
- Wide Thickness Range: 8mm to 120mm – one-stop solution for various design requirements, from thin plates to heavy sections.
- Excellent Toughness: Good low-temperature impact properties (optional -20°C or -40°C testing) to withstand harsh environments.
- Superior Weldability: Low carbon equivalent (CEV ≤ 0.47) facilitates easy welding without preheating in most cases, reducing fabrication time.
- Consistent Chemical Composition: Controlled levels of C, Si, Mn, P, S, and microalloying elements (Nb, V, Ti) ensure uniform mechanical properties.
- Customizable Dimensions: Width up to 4000mm, length up to 12000mm, or as per your drawing – we offer flexible cutting and processing services.
| Parameter | Value |
|---|---|
| Grade | Q460C (GB/T 1591) |
| Yield Strength | ≥ 460 MPa (for thickness ≤ 16mm) |
| Tensile Strength | 550 – 720 MPa |
| Elongation | ≥ 17% |
| Impact Energy (optional) | ≥ 34 J @ -20°C (or -40°C upon request) |
| Thickness Tolerance | EN 10029 / ASTM A6 equivalent |
| Flatness | Within 5mm per meter (or tighter upon request) |
Advantages for Heavy Machinery Applications
Using Q460C steel plates in heavy machinery construction offers multiple benefits:
- Weight Reduction: Higher strength allows thinner sections, reducing overall equipment weight by up to 15% compared to conventional Q235B or Q345B steels. This translates to higher payload capacity and lower fuel consumption.
- Enhanced Durability: The fine-grained microstructure (achieved through controlled rolling or TMCP) improves fatigue resistance, extending the service life of components exposed to cyclic loading.
- Cost Efficiency: Less material needed per component, and simplified welding procedures reduce labor and consumable costs. Fewer passes also speed up production cycles.
- Versatility: Suitable for both indoor and outdoor use; can be supplied with various surface treatments (shot blasting, primer painting, or anti-corrosion coatings) to suit specific environments.
Our Commitment to Quality & Service
At Hemaokang Steel (Shandong) Co., Ltd., we are dedicated to providing premium steel products backed by our ISO 9001 quality management system. Established in 2025, we have quickly built a reputation for reliability and responsiveness. Our annual export value exceeds US$50 million, serving clients across North America, South America, Europe, Asia, Africa, and Oceania. With a team of 51–100 experienced professionals, we ensure each order is handled with care – from mill sourcing to final inspection and logistics.
We understand that heavy machinery projects require strict adherence to specifications and deadlines. That’s why we offer flexible order quantities, third-party inspection support (e.g., SGS, BV), and fast delivery times. Our stock covers a wide range of thicknesses, and we can also arrange custom processing (cutting, drilling, bending) to meet your exact requirements. Whether you need a single plate or a full container load, we deliver consistent quality and competitive pricing.
Contact us today to discuss your project – our technical sales team can provide detailed mill test certificates, chemical composition reports, and mechanical property data. Experience the Hemaokang advantage: high strength, high reliability, and high value. Choose Q460C for your next heavy machinery build.
Frequently Asked Questions (FAQ)
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Q: What is the difference between Q460C and Q460D?
A: Q460C offers guaranteed impact energy at 0°C, while Q460D provides guaranteed impact at -20°C. For heavy machinery in cold regions, we recommend Q460D or optional -40°C testing. Please specify your requirement. -
Q: Can you supply plates with ultrasonic testing (UT) certification?
A: Yes, we can arrange UT according to standard EN 10160 or ASTM A578, typically at an additional cost. Please inquire for details. -
Q: What is the minimum order quantity (MOQ)?
A: Our MOQ is 1 ton for stocked sizes. For custom dimensions or special processing, MOQ may be higher. Contact our sales team for exact quantities. -
Q: Do you provide sample plates for testing?
A: Yes, we can provide small samples (e.g., 300mm x 300mm) at competitive prices. Shipping costs are to be covered by the buyer. -
Q: How is the plate surface treated to prevent rust during shipping?
A: Standard surface treatment is rust preventive oil coating or varnish. For long sea voyages, we also offer anti-rust paper wrapping and edge protection. Custom packaging is available. -
Q: What is the typical lead time for a 20-ton order?
A: For standard thicknesses and sizes, lead time is 15–20 working days after deposit. For non-standard specifications, it may be 25–30 working days. We work to meet your project schedule. -
Q: Is Q460C suitable for welding with standard processes?
A: Yes, Q460C has good weldability. Preheating is generally not required for thicknesses under 30mm. For thicker plates, a preheat of 100–150°C is recommended. We can provide welding procedure guidelines upon request. -
Q: Do you accept third-party inspection?
A: Absolutely. We welcome inspections by SGS, BV, TÜV, or any other accredited agency. The cost is typically borne by the buyer unless otherwise agreed.
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