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Help Center304L Stainless Steel Plate 3mm Thick 1500x3000mm Sheet With Mill Test Report for Structural Use
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Hemaokang Steel (Shandong) Co., Ltd. proudly presents our premium 304L Stainless Steel Plate in 3mm thickness, sized 1500×3000mm, specifically designed for structural applications. As a supplier with an annual export value exceeding US$50 million and a dedicated team of 51–100 professionals, we ensure every sheet meets rigorous quality standards. Each plate is supplied with a Mill Test Report, guaranteeing traceability and performance for demanding construction and engineering projects. Our commitment to excellence is backed by ISO9001 certification, making us a reliable partner for global buyers.
This 304L grade is an extra-low carbon version of 304 stainless steel, offering superior weldability and resistance to intergranular corrosion after welding or stress relieving. The 3mm thickness provides an ideal balance of strength and formability, while the 1500×3000mm large format reduces waste and welding seams in structural fabrication. Whether you are constructing bridges, storage tanks, architectural frameworks, or industrial equipment, our plates deliver consistent performance.
Key Features & Specifications
- Low Carbon Content (≤0.03%): Minimizes carbide precipitation during welding, ensuring long-term durability in corrosive environments.
- Excellent Corrosion Resistance: Suitable for mild to moderate corrosive conditions, including atmospheric, fresh water, and some chemical exposure.
- High Strength & Toughness: Yield strength ≥ 170 MPa, tensile strength ≥ 485 MPa, suitable for load-bearing structures.
- Good Formability & Weldability: Can be cut, bent, punched, and welded without compromising integrity.
- Mill Test Report Included: Each batch is tested for chemical composition, mechanical properties, and dimensional accuracy, providing full traceability.
| Parameter | Value |
|---|---|
| Grade | 304L (UNS S30403) |
| Thickness | 3.0 mm (+/- 0.2 mm tolerance) |
| Width × Length | 1500 mm × 3000 mm (custom sizes available on request) |
| Surface Finish | Mill Finish (2B, No.1, or 4K polish optional) |
| Standard | ASTM A240 / ASME SA240 |
| Application | Structural, architectural, industrial |
Our 304L stainless steel plates undergo strict quality control at every stage. The material is sourced from reputable mills, and we perform in-house verification of dimensions, surface defects, and flatness. The accompanying Mill Test Report includes chemical analysis (C, Si, Mn, P, S, Cr, Ni, etc.) and mechanical test results (yield, tensile, elongation). This transparency ensures you receive exactly what you order.
Why choose Hemaokang Steel? As a newly established company in 2025, we have rapidly built a global presence, exporting to North America, South America, Europe, Africa, Oceania, the Middle East, and Asia. Our annual export turnover of US$50–100 million reflects the trust our customers place in us. We are headquartered in Liaocheng, Shandong, strategically located near Qingdao Port for efficient logistics. Our ISO9001 quality management system ensures consistent product quality and on-time delivery. We also offer value-added services such as cutting, bending, and surface treatment to meet your specific requirements.
We understand that structural projects demand reliability. That is why we provide Mill Test Reports with every shipment, giving you full confidence in material performance. Our team of experienced engineers and sales professionals is ready to assist you with technical support and customized solutions. Contact us today to place your order or request a quotation.
Frequently Asked Questions (FAQ)
-
What is the difference between 304 and 304L stainless steel?
304L has a lower carbon content (≤0.03%) compared to 304 (≤0.08%). This reduces the risk of intergranular corrosion after welding, making 304L preferred for thicker sections or welded structures. -
Are the plates supplied with a Mill Test Report (MTR)?
Yes, every order includes a Mill Test Report that certifies chemical composition and mechanical properties, ensuring traceability and compliance with ASTM A240. -
Can you cut the plates to custom sizes?
Absolutely. We offer cutting services (laser, plasma, shearing) to meet your exact dimensions. Custom sizes are available upon request with minimal lead time. -
What is the typical lead time for a 1500×3000mm 3mm sheet order?
Standard stock items can be shipped within 7–15 days after order confirmation. Larger quantities may require 20–30 days depending on production schedule. -
Do you ship internationally? What port do you use?
Yes, we export worldwide. Our main port of shipment is Qingdao, China. We can arrange FOB, CIF, or other terms per your preference. -
Is the surface finish suitable for visible architectural applications?
The standard mill finish is matte. For aesthetic applications, we can provide 2B (bright) or 4K polished finishes. Please specify your requirement. -
What is the minimum order quantity (MOQ)?
For standard sizes, MOQ is typically 10 sheets. For custom sizes or special finishes, MOQ may be higher. Contact our sales team for details. -
How do you ensure the quality of your plates?
Our factory is ISO9001 certified. We conduct dimensional inspection, surface quality check, and mechanical testing on each batch. Mill Test Reports are issued for full traceability.
Trust Hemaokang Steel for your structural stainless steel needs. With our robust supply chain, strict quality control, and global shipping capabilities, we are confident in delivering plates that meet your specifications. Contact us today to experience professional service and competitive pricing.
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