Huaxiao Metal is a professional 304/304L cold rolled stainless steel coil manufacturer and supplier, providing high-performance, corrosion-resistant, and easy-to-fabricate stainless steel coils suitable for a wide range of industrial and commercial applications.
304 304L cold rolled stainless steel coil is widely used in household products (1,2 tableware), cabinets, indoor pipelines, water heaters, boilers, bathtubs, auto parts, medical equipment, building materials, chemicals, food industry, agriculture, and ship parts.
Looking for reliable 304/304L stainless steel coil suppliers? Contact us now for the best prices and fast delivery.
ASTM A240
EN 10204 3.1
UNS S30400/S30403
DQ/DDQ Available
MOQ 1 Ton
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304/304L Cold Rolled Stainless Steel Coil — The Most Versatile Grade for Global Manufacturing
304/304L cold rolled stainless steel coil (UNS S30400/S30403, EN 1.4301/1.4307) is the world’s most widely used austenitic stainless steel. As a leading 304/304L cold rolled stainless steel coil supplier and manufacturer in China, Huaxiao Metal stocks and exports coils ranging from 0.2mm to 8mm in thickness, with widths from 600mm to 2000mm, in 2B, BA, No.4, HL, 2D and Embossed surface finishes. Our coils feature tight dimensional tolerances (±0.01–0.05mm), consistent mechanical performance, and smooth surface quality — ideal for stamping, roll forming, deep drawing and welding operations.
Whether you need 304 2B coil for kitchen appliances, 304L BA coil for decorative panels, 304 DQ/DDQ coil for deep-drawn sinks and pots, or 304 No.4 coil for elevator doors and handrails — Huaxiao delivers competitive pricing and EN 10204 3.1 MTC with every shipment. We also supply 304DQ/DDQ deep drawing quality coil for demanding forming applications, and related grades including 316L/316 coil, 201 coil and 430 coil.
Huaxiao Capacity about 304/304L cold rolled stainless steel coil, 304/340L CRC
| Specifications | ASTM A240 / ASME SA240 |
|---|---|
| Dimensions | ASTM, ASME, and API |
| Width | 600mm / 1000mm / 1120mm / 1219 / 1500mm / 2000mm, etc |
| Thickness | 0.2mm – 8.0mm |
| Length | as per your requirement |
| Surface Finish | 2B, 2D, BA, NO.4, NO.8, 8K, mirror, Emboss, Etch, etc. |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard, etc. |
| Max coil | 25MT and as per your requirement |
| Coil ID | 508mm,610mm, as per your requirement |
We offer ready stock, customized coil specifications, bulk supply, and global shipping, ensuring a reliable and convenient sourcing experience for international customers.
If you need to know the ss 304 coil price in China, please feel free to contact the Huaxiao 304 stainless coil supplier.
Advanced Slitting & Surface Protection
Precision Slitting: We utilize high-speed precision slitting lines to provide narrow 304L strips for stamping and tube-making, ensuring minimal edge burrs.
Surface Consistency: Our BA (Bright Annealed) and 2B finishes are processed in a controlled atmosphere to ensure consistent color and reflectivity across the entire coil length.
Pro-Grade Packaging: To prevent scratches and oxidation, every coil is interleaved with paper or protected by Laser-grade PE/PVC film, then secured on export-standard wooden or metal pallets.
Why Choose 304L Cold Rolled? For applications requiring extensive deep drawing or welding in thin-wall components, our 304L coils offer better grain structure and resistance to intergranular corrosion.
304 vs 304L Cold Rolled Stainless Steel Coil — Which Should You Choose?
Both grades share 18–20% Cr and 8–12% Ni, but carbon content difference determines their best use case.
| Property | 304 (UNS S30400) | 304L (UNS S30403) |
|---|---|---|
| Carbon (max) | 0.08% | 0.03% |
| EN Designation | 1.4301 | 1.4307 |
| Tensile Strength (min) | 515 MPa (75,000 psi) | 485 MPa (70,000 psi) |
| Yield Strength (min) | 205 MPa (30,000 psi) | 170 MPa (25,000 psi) |
| Elongation (min) | 40% | 40% |
| Weldability | Good — standard welding | Excellent — no IGC risk after welding |
| Intergranular Corrosion | Possible risk after welding at 450–850°C | Minimal risk — low C prevents sensitization |
| Deep Drawing | Good for general stamping | Better for deep-drawn thin-wall parts |
| Price Difference | Slightly lower (standard grade) | +$50–100/ton (low-C premium) |
| Best Use Case | General fabrication, structural, non-welded assemblies | Welded thin-wall tanks, piping, deep-drawn components, food-grade equipment |
💡 Selection Tip: If your application involves welding thin-wall components (tanks, piping, sinks) or requires maximum intergranular corrosion resistance, choose 304L. If welding is minimal and you need higher tensile/yield strength at a slightly lower cost, 304 is the right choice. Both grades offer excellent general corrosion resistance and formability.
304/304L/304H Chemical Composition — ASTM A240
Complete chemical analysis for Type 304, 304L and 304H per ASTM A240/A240M standard.
| Element | Type 304 (S30400) | Type 304L (S30403) | Type 304H (S30409) |
|---|---|---|---|
| Chromium | 18.0–20.0% | 18.0–20.0% | 18.0–20.0% |
| Nickel | 8.0–11.0% | 8.0–12.0% | 8.0–10.5% |
| Carbon (max) | 0.08% | 0.03% | 0.04–0.10% |
| Manganese (max) | 2.00% | 2.00% | 2.00% |
| Silicon (max) | 0.75% | 0.75% | 0.75% |
| Phosphorus (max) | 0.045% | 0.045% | 0.045% |
| Sulfur (max) | 0.030% | 0.030% | 0.030% |
| Nitrogen (max) | 0.10% | 0.10% | — |
304/304L Mechanical Properties — ASTM A240 (Annealed)
Mechanical properties for Type 304, 304L and 304H cold rolled stainless steel coil in annealed condition.
| Property | Type 304 (S30400) | Type 304L (S30403) | Type 304H (S30409) |
|---|---|---|---|
| Tensile Strength (min) | 515 MPa / 75,000 psi | 485 MPa / 70,000 psi | 515 MPa / 75,000 psi |
| Yield Strength (min) | 205 MPa / 30,000 psi | 170 MPa / 25,000 psi | 205 MPa / 30,000 psi |
| Elongation (min, in 2″) | 40% | 40% | 40% |
| Hardness (max, HRB) | 92 | 92 | 92 |
⚙️ Hardness Temper Options: In addition to annealed (Soft) condition, we supply 304/304L cold rolled coil in Quarter Hard (1/4H), Half Hard (1/2H), Full Hard (FH), and Spring Hard temper. Each temper provides different yield/tensile balance — Quarter Hard for moderate forming, Spring Hard for spring and clip fabrication. Contact us for specific hardness temper specifications.
304/304L Physical Properties
| Physical Property | Value |
|---|---|
| Density | 7.93 g/cm³ |
| Elastic Modulus | 193 GPa |
| Melting Point | 1,399°C |
| Thermal Conductivity | 16.2 W/(m·K) at 100°C |
| Coefficient of Thermal Expansion | 17.2 μm/m·K (20–100°C) |
| Electrical Resistivity | 72 μΩ·cm (20°C) |
| Magnetic Permeability | 1.008 μH/m (essentially non-magnetic) |
| Poisson’s Ratio | 0.29 (20°C) |
* Values are for annealed condition at 20°C. Actual values may vary by mill and process.
304/304L Equivalent Grades — International Standards Cross-Reference
Quick reference for identifying 304/304L across ASTM, EN, JIS, GB, UNS and DIN standards.
| Grade | ASTM / ASME | EN | JIS | GB/T | UNS | DIN |
|---|---|---|---|---|---|---|
| 304 | A240 / SA240 | 1.4301 | SUS304 | 06Cr19Ni10 | S30400 | X5CrNi18-10 |
| 304L | A240 / SA240 | 1.4307 | SUS304L | 022Cr19Ni10 | S30403 | X2CrNi18-9 |
🌍 Why This Matters for International Buyers: European buyers specify EN 1.4301/1.4307 or DIN X5CrNi18-10. Japanese buyers use SUS304/SUS304L. Chinese domestic standard is GB/T 06Cr19Ni10. Huaxiao certifies all coils against ASTM A240 and can provide dual-standard certification per your region’s requirement.
304/304L Cold Rolled Coil Surface Finishes & Hardness Temper
Select the right surface finish and hardness for your fabrication process.
Surface Finishes
| Finish | Description | Ra (μm) | Best 304 Application |
|---|---|---|---|
| 2B | Cold rolled, annealed, pickled + skin pass — smooth, moderately reflective | 0.1–0.3 | Kitchen appliances, food equipment, chemical tanks — most cost-effective |
| BA | Bright annealed in controlled atmosphere — mirror-like reflectivity | 0.05–0.1 | Decorative panels, appliance fronts, reflectors, automotive trim |
| 2D | Cold rolled, annealed, pickled — dull matte surface | 0.2–0.5 | Pre-finish for deep drawing operations (DDQ/DQ quality) |
| No.4 | Polished with 120–150 grit — directional brushed appearance | 0.2–0.6 | Elevator doors, handrails, retail fixtures, hospital equipment |
| HL (Hairline) | Fine continuous linear polish — satin-like texture | 0.1–0.3 | Architecture interior, appliance fronts, decorative cladding |
| No.8 (Mirror) | Progressively polished to mirror-like reflectivity | < 0.05 | Luxury fixtures, signage, decorative panels, elevator interiors |
Hardness Temper Options
| Temper | Approx. HV | Yield Strength | Best Application |
|---|---|---|---|
| Soft (Annealed) | 150–200 HV | ~205 MPa | Deep drawing, stamping, general forming (DDQ/DQ) |
| Quarter Hard (1/4H) | 200–250 HV | ~310 MPa | Light forming, bending, roll forming |
| Half Hard (1/2H) | 250–310 HV | ~450 MPa | Moderate forming, brackets, brackets, structural parts |
| Full Hard (FH) | 310–370 HV | ~620 MPa | Minimal forming — flat panels, rigid components |
| Spring Hard | 370–430 HV | ~800+ MPa | Spring clips, fasteners, high-strength components |
Cold Rolled 304 Stainless Steel Coil Package
We at Huaxiao & Metal ensure the best quality of packaging, as it plays an important role, especially in international shipments, the goods go through various channels to the final destination, so we pay special attention to packaging.
We pack our shipments in a variety of ways depending on the product. We package our products in many ways such as:–
• Boxes and crates
• Waterproof paper
• Wooden pallets
• wooden box
Feature about Type 304 Stainless Steel Coil
Stainless steel surface appearance and the possibility of diversification
Good corrosion resistance, more durable than ordinary steel
Good corrosion resistance
High strength, so the possibility of using a large sheet
With high-temperature oxidation and high strength, it can resist fire
Room temperature processing, which is easy plastic processing
Because it does not need surface treatment, it is simple and easy to maintain
Clean, high finish
Good welding performance
ASTM 304 Stainless Steel Application
ASTM 304 stainless steel is a versatile material widely used in various applications due to its excellent corrosion resistance, high-temperature strength, and good formability. Some common applications of ASTM 304 stainless steel include:
Food and Beverage Processing:
ASTM 304 is a popular choice for food and beverage processing equipment due to its excellent resistance to corrosion, ease of cleaning, and ability to maintain the purity of processed products.
Chemical Processing:
The high corrosion resistance of ASTM 304 makes it an ideal material for use in chemical processing equipment, including reactors, tanks, and pipelines.
Medical Equipment:
ASTM 304 stainless steel is used extensively in medical equipment and instruments due to its high corrosion resistance and ability to withstand sterilization by various methods.
Automotive Industry:
Many automotive parts, such as exhaust systems, trim, and decorative parts, are made from ASTM 304 stainless steel due to their corrosion resistance, strength, and aesthetic appeal.
Architecture and Construction:
ASTM 304 stainless steel is often used in architectural and construction applications due to its durability, corrosion resistance, and aesthetic appeal. It is used in roofing, cladding, and other exterior and interior applications.
Aerospace Industry:
The aerospace industry also utilizes ASTM 304 stainless steel due to its high strength-to-weight ratio and corrosion resistance. It is used in aircraft parts such as engine components, fasteners, and structural components.
Overall, ASTM 304 stainless steel is an excellent material for applications that require high corrosion resistance, strength, and durability.
Looking for reliable 304/304L stainless steel coil suppliers? Contact us now for the best prices and fast delivery.
304 vs 304l Stainless Steel Coil
304 stainless steel (UNS S30400 / EN 1.4301) is a widely used austenitic alloy with a balanced combination of corrosion resistance, strength, and formability. Its lower carbon version, 4304L (UNS S30403 / EN 1.307), is preferred for applications requiring extensive welding or minimized risk of intergranular corrosion.
Cold rolled stainless steel coils are produced by cold reducing annealed stainless strip to achieve a smooth, uniform surface and tighter dimensional tolerances compared to hot rolled products.
Both 304 and 304L cold rolled coils are suitable for precision fabrication, deep drawing, stamping, and high‑finish surface applications.
304 stainless steel contains between 0.08% and 0.10% carbon, while 304L stainless steel contains less than 0.03% carbon. This lower carbon content in 304L makes it more resistant to sensitization, a type of corrosion that can occur when stainless steel is heated to high temperatures.
Because of its lower carbon content, 304L is often used in welding applications where high temperatures are involved, such as in the manufacturing of piping and tubing. It is also often used in applications where corrosion resistance is important, such as in the food and beverage industry.
In terms of their physical properties, 304 and 304L are very similar. Both have excellent corrosion resistance, good weldability, and high strength and hardness. They are both non-magnetic and have a high oxidation resistance.
Overall, the choice between 304 and 304L will depend on the specific application and the conditions under which the stainless steel will be used. If high temperatures are involved, or if corrosion resistance is a top priority, then 304L may be the better choice.
Why Choose Huaxiao for 304/304L Cold Rolled Coil
FAQ: Professional Sourcing of 304L/304 Cold Rolled Coils
What is the difference between 2B and BA finish for 304 coils?
2B finish is a smooth, non-reflective matte finish, most commonly used in industrial and kitchen equipment. BA (Bright Annealed) is processed by heat treatment in a controlled atmosphere furnace, resulting in a mirror-like, highly reflective surface ideal for decorative trim and appliances.
Can you provide 304L coils for deep-drawing (DDQ) quality?
Yes. For manufacturers of sinks, pots, or complex automotive parts, we offer 304/304L DQ DDQ (Deep Drawing Quality) coils with optimized elongation and mechanical properties to prevent cracking during the drawing process.
What is the minimum order quantity (MOQ) for custom-width slitting?
For standard stock items, the MOQ is as low as 1-3 tons. For custom precision slitting of ultra-narrow strips, please contact us with your specific requirements for a tailored lead time.
Do you provide MTC with every 304L coil shipment?
Absolutely. We provide a full Mill Test Certificate (MTC) per EN 10204 3.1, detailing the chemical analysis, tensile strength, yield strength, and elongation to ensure 100% material compliance.
What is the difference between 304 and 304L cold rolled coils?
304L has lower carbon content, offering better weldability and reduced intergranular corrosion risk, especially in welded assemblies.
Do you accept custom thickness and width?
Yes, we support custom coil specifications based on your project requirements.
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