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Help CenterStainless Steel Coil 304 With Mill Test Report and 1 Year Warranty Direct Factory
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As a direct factory with over 20 years of production experience, Hemaokang Steel (Shandong) Co., Ltd. proudly presents our premium Stainless Steel Coil 304 – a product that combines quality assurance, traceability, and long-term reliability. Each coil is supplied with a Mill Test Report verifying chemical composition and mechanical properties, and is backed by a 1-year warranty for your peace of mind. Our ISO9001-certified manufacturing process ensures consistent thickness, excellent surface finish, and tight dimensional tolerances, making this coil ideal for demanding industrial applications across global markets.
We understand that B2B buyers need more than just a product – they need a partner they can trust. That’s why every coil from our factory undergoes rigorous quality checks, from raw material sourcing to final packaging. With an annual export value exceeding US$50 million and shipments to over 20 countries, our stainless steel coils have been proven in diverse environments, from food processing equipment to architectural cladding. Choose Hemaokang for consistent quality, competitive pricing, and reliable supply.
Product Features & Technical Specifications
- Material Grade 304 (1.4301): Excellent corrosion resistance, weldability, and formability for general industrial use.
- Mill Test Report (MTR) Included: Complete traceability of chemical composition (C, Si, Mn, P, S, Ni, Cr) and mechanical properties (tensile, yield, elongation).
- Dimensional Accuracy: Thickness tolerance ±0.02mm, width tolerance ±1mm, ensuring consistent performance in stamping, bending, and cutting.
- Surface Finish Options: 2B (standard bright), BA (bright annealed), No.4 (brushed), HL (hairline) – customizable to your application.
- 1-Year Warranty: Covers manufacturing defects, material flaws, and surface quality issues under normal use conditions.
- Direct Factory Price: No middlemen, competitive pricing with volume discounts available for bulk orders.
- Flexible Packaging: Standard seaworthy packing with anti-rust paper, plastic film, and steel banding for safe transportation.
| Parameter | Specification |
|---|---|
| Standard | ASTM A240, JIS G4304, GB/T 3280 |
| Thickness Range | 0.3 mm – 3.0 mm (custom up to 6.0 mm on request) |
| Width Range | 600 mm – 1500 mm (slit coils available) |
| Coil Weight | 3 – 8 tons per coil (custom) |
| Surface Finish | 2B, BA, No.4, HL, Mirror (custom) |
| Chemical Composition (Typical) | C ≤0.08%, Si ≤1.0%, Mn ≤2.0%, P ≤0.045%, S ≤0.03%, Ni 8.0-10.5%, Cr 18.0-20.0% |
| Mechanical Properties | Tensile ≥520 MPa, Yield ≥205 MPa, Elongation ≥40% |
| Warranty | 1 year from date of shipment |
Advantages & Customer Benefits
- Traceability & Compliance: Each coil comes with a Mill Test Report, ensuring full traceability for quality audits and regulatory requirements in industries like food processing, pharmaceuticals, and chemical storage.
- Cost Savings: Direct factory pricing eliminates intermediary markups, while our high-volume production capacity ensures stable supply and competitive quotes for large projects.
- Reduced Downtime: Consistent material properties reduce scrap rates and rework in stamping, bending, and welding operations.
- Global Logistics: Shipped from Qingdao Port with experienced freight forwarders; typical lead time 15-25 days after deposit, with expedited options available for urgent orders.
- After-Sales Support: Dedicated account managers provide technical support, sample requests, and quick resolution of any quality issues under warranty.
Trust & Reliability – Why Choose Hemaokang Steel?
Hemaokang Steel (Shandong) Co., Ltd. is a professional manufacturer with an annual export turnover of US$50–100 million, serving clients in over 20 countries across North America, South America, Europe, Asia, Africa, and Oceania. Our factory is ISO9001 certified, ensuring that every production step – from raw material inspection to final packaging – meets international quality standards. With a skilled workforce of 51–100 employees and advanced production lines, we control quality from start to finish.
We are located in Liaocheng, Shandong, a major steel production hub in China, giving us access to high-quality raw materials and efficient logistics. Our commitment to excellence is reflected in our 1-year warranty and the Mill Test Report provided with every order. We believe in transparency, reliability, and long-term partnerships – not just transactions.
Contact us today for a quote or sample! Our team will respond within 24 hours with detailed specifications, pricing, and delivery options. Experience the reliability of a direct factory partner.
Frequently Asked Questions (FAQ)
-
Q: What is the difference between 304 and 304L stainless steel coil?
A: 304L has lower carbon content (≤0.03%) which reduces the risk of carbide precipitation during welding, making it better for heavy-gauge welding applications. Our 304 coil is suitable for most general uses; if you need L-grade, we can supply it on request. -
Q: Is the Mill Test Report provided for every coil?
A: Yes, each coil is accompanied by a Mill Test Report (MTR) showing chemical composition, mechanical properties, and heat number for full traceability. -
Q: What surface finishes are available?
A: Standard finishes are 2B, BA, No.4, and HL. We can also customize mirror finish or embossed patterns upon request. Please specify your requirement when ordering. -
Q: How do you ensure the coil is not scratched or damaged during transport?
A: We use professional seaworthy packaging: inner anti-rust paper, plastic film, outer steel banding, and edge protectors. For extra protection, we can add wooden crating or fumigation-free plywood cases at additional cost. -
Q: What is your minimum order quantity (MOQ)?
A: For standard sizes, MOQ is typically 5 tons per item. For customized dimensions or surface finishes, MOQ may be higher. We welcome trial orders of 1-2 tons for new customers. -
Q: Does the 1-year warranty cover all defects?
A: The warranty covers manufacturing defects, material flaws, and surface quality issues that occur under normal use and storage conditions. It does not cover damage caused by improper handling, corrosion from aggressive environments, or modifications after delivery. -
Q: Can you provide samples before bulk order?
A: Yes, we offer free samples up to 300mm x 300mm (customer pays shipping). For larger sample pieces, a nominal fee may apply, which will be deducted from your first order. -
Q: What are the typical lead times?
A: For standard specifications, production takes 10-15 days after deposit, plus 5-10 days for sea freight booking. Total lead time is approximately 15-25 days. Rush orders can be accommodated with 5-7 days production for an additional fee.
* All information is subject to change. Please confirm with our sales team for the latest specifications and pricing.
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